openapi: 3.2.0
info:
  title: 2s — the (most) everything Geo API
  version: '1'
  summary: The (most) everything API.
  description: 'The (most) everything API for AI agents: 575+ pay-per-call endpoints on one origin.'
  contact:
    name: 2s
    url: https://2s.io
    email: alley@2s.io
  x-logo:
    url: https://2s.io/icon-512.png
    altText: 2s
  x-guidance: 'Pay-per-call REST API for AI agents — hundreds of endpoints returning ground-truth data (US public records, company & legal identifiers, finance/SEC, crypto/web3, security & CVEs, medical codes, weather & geocoding, agriculture, energy, maritime, music, and more). Every endpoint is paid per call in USDC via x402 (Base or Solana) — no API key, no signup. Call any endpoint with no auth to get a 402 PaymentRequirements envelope, sign it (EIP-3009 on Base, partial SPL transfer on Solana), and retry with the PAYMENT-SIGNATURE header. Add ?trial=1 for one free real call per endpoint per hour to test before paying. To discover the right endpoint: GET https://2s.io/api/directory for the full catalog, or GET https://2s.io/api/search/endpoints?q=<natural-language task> for a ranked match. Per-call price is on each operation as x-payment-info (from $0.001). Batch up to 50 calls behind one payment via POST https://2s.io/api/batch/run.'
servers:
- url: https://2s.io
tags:
- name: Geo
paths:
  /api/geo/elevation:
    get:
      tags:
      - Geo
      summary: Ground elevation above sea level for a coordinate, anywhere
      description: 'Ground elevation above sea level for a coordinate, anywhere on Earth. Pass lat + lon. Returns elevation in meters and feet (from the Copernicus/SRTM digital elevation model, ~90m resolution). Source: Open-Meteo elevation API (keyless, CC BY 4.0).'
      operationId: geo_elevation
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized envelope: items = [elevation for the point]; total = 1.'
          content:
            application/json:
              schema:
                type: object
                required:
                - data
                - meta
                properties:
                  data:
                    type: object
                    properties:
                      ok:
                        type: boolean
                        enum:
                        - true
                      items:
                        type: array
                        items:
                          type: object
                          properties:
                            lat:
                              type: number
                            lon:
                              type: number
                            elevationMeters:
                              type: number
                              nullable: true
                            elevationFeet:
                              type: number
                              nullable: true
                          required:
                          - lat
                          - lon
                          - elevationMeters
                          - elevationFeet
                          additionalProperties: false
                      total:
                        type: integer
                        nullable: true
                        description: Total matching rows upstream; null when unknown.
                      source:
                        $ref: '#/components/schemas/Source'
                    required:
                    - ok
                    - items
                    - total
                    - source
                    additionalProperties: false
                  meta:
                    $ref: '#/components/schemas/CallMeta'
        '400':
          $ref: '#/components/responses/BadRequest'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '500':
          $ref: '#/components/responses/ServerError'
        '502':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: geo.elevation
      x-2s-version: null
      x-2s-price:
        usd: 0.0025
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.002500'
        protocols:
        - x402: {}
      parameters:
      - name: lat
        in: query
        required: true
        description: Latitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -90
          maximum: 90
      - name: lon
        in: query
        required: true
        description: Longitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -180
          maximum: 180
      - $ref: '#/components/parameters/TrialMode'
  /api/geo/flood-zone:
    get:
      tags:
      - Geo
      summary: Determine the FEMA flood zone for a coordinate
      description: 'Determine the FEMA flood zone for a coordinate. Pass lat and lon. Returns the FEMA flood zone code (e.g. AE, VE, X), its subtype, whether the point is in a Special Flood Hazard Area (isSFHA — the 1% annual-chance floodplain where flood insurance is mandatory for federally backed mortgages), a plain-language risk level (high / moderate / minimal / undetermined / unmapped) and description, the static base flood elevation and depth when published, and the source FIRM panel id. Data: FEMA National Flood Hazard Layer (NFHL), free and public-domain. When no flood polygon intersects the point, returns mapped=false (usually Zone X / minimal risk or unmapped — not a guarantee of zero risk). Use for property risk screening, insurance/mortgage context, and siting decisions; geocode an address with /api/geocode/address first to get the coordinate.'
      operationId: geo_flood-zone
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                required:
                - data
                - meta
                properties:
                  data:
                    type: object
                    properties:
                      query:
                        type: object
                        properties:
                          lat:
                            type: number
                          lon:
                            type: number
                        required:
                        - lat
                        - lon
                        additionalProperties: false
                      mapped:
                        type: boolean
                      floodZone:
                        type: string
                        nullable: true
                      zoneSubtype:
                        type: string
                        nullable: true
                      isSFHA:
                        type: boolean
                        nullable: true
                      riskLevel:
                        type: string
                        enum:
                        - high
                        - moderate
                        - minimal
                        - undetermined
                        - unmapped
                      zoneDescription:
                        type: string
                      staticBFE:
                        type: number
                        nullable: true
                      depth:
                        type: number
                        nullable: true
                      firmPanelId:
                        type: string
                        nullable: true
                      sourceCitation:
                        type: string
                        nullable: true
                      note:
                        type: string
                        nullable: true
                      sources:
                        type: array
                        items:
                          $ref: '#/components/schemas/Source'
                    required:
                    - query
                    - mapped
                    - floodZone
                    - zoneSubtype
                    - isSFHA
                    - riskLevel
                    - zoneDescription
                    - staticBFE
                    - depth
                    - firmPanelId
                    - sourceCitation
                    - note
                    - sources
                    additionalProperties: false
                  meta:
                    $ref: '#/components/schemas/CallMeta'
        '400':
          $ref: '#/components/responses/BadRequest'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '500':
          $ref: '#/components/responses/ServerError'
        '502':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: geo.flood-zone
      x-2s-version: null
      x-2s-price:
        usd: 0.0036
      x-2s-accepts:
      - x402
      x-2s-response-shape: legacy
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.003600'
        protocols:
        - x402: {}
      parameters:
      - name: lat
        in: query
        required: true
        description: Latitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -90
          maximum: 90
      - name: lon
        in: query
        required: true
        description: Longitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -180
          maximum: 180
      - $ref: '#/components/parameters/TrialMode'
  /api/geo/ip:
    get:
      tags:
      - Geo
      summary: Geolocate a single IPv4 or IPv6 address
      description: Geolocate a single IPv4 or IPv6 address. Returns country (name + ISO code), region (name + code), city, ZIP, lat/lon, timezone, ISP, organization, and AS number + name. For bulk lookups (up to 100 IPs in one call) use /api/ipinfo/bulk instead. Lat/lon precision is city-level, not GPS.
      operationId: geo_ip
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized envelope: items = [geolocation] (ip, country, region, city, postalCode, coords, timezone, network); total = 1.'
          content:
            application/json:
              schema:
                type: object
                required:
                - data
                - meta
                properties:
                  data:
                    type: object
                    properties:
                      ok:
                        type: boolean
                        enum:
                        - true
                      items:
                        type: array
                        items:
                          type: object
                          properties:
                            ip:
                              type: string
                            country:
                              type: object
                              properties:
                                code:
                                  type: string
                                  description: ISO country code.
                                name:
                                  type: string
                              required:
                              - code
                              - name
                              additionalProperties: false
                            region:
                              type: object
                              properties:
                                code:
                                  type: string
                                name:
                                  type: string
                              required:
                              - code
                              - name
                              additionalProperties: false
                            city:
                              type: string
                            postalCode:
                              type: string
                              nullable: true
                            coords:
                              type: object
                              properties:
                                lat:
                                  type: number
                                lon:
                                  type: number
                              required:
                              - lat
                              - lon
                              additionalProperties: false
                              description: City-level precision, not GPS.
                            timezone:
                              type: string
                              nullable: true
                            network:
                              type: object
                              properties:
                                isp:
                                  type: string
                                  nullable: true
                                org:
                                  type: string
                                  nullable: true
                                asn:
                                  type: string
                                  nullable: true
                                  description: AS number + name.
                              required:
                              - isp
                              - org
                              - asn
                              additionalProperties: false
                          required:
                          - ip
                          - country
                          - region
                          - city
                          - postalCode
                          - coords
                          - timezone
                          - network
                          additionalProperties: false
                      total:
                        type: integer
                        nullable: true
                        description: Total matching rows upstream; null when unknown.
                      source:
                        $ref: '#/components/schemas/Source'
                    required:
                    - ok
                    - items
                    - total
                    - source
                    additionalProperties: false
                  meta:
                    $ref: '#/components/schemas/CallMeta'
        '400':
          $ref: '#/components/responses/BadRequest'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '500':
          $ref: '#/components/responses/ServerError'
        '502':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: geo.ip
      x-2s-version: null
      x-2s-price:
        usd: 0.0025
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.002500'
        protocols:
        - x402: {}
      parameters:
      - name: ip
        in: query
        required: true
        description: IP.
        schema:
          type: string
          pattern: ^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}|[0-9a-fA-F:]+)$
          minLength: 2
          maxLength: 45
      - $ref: '#/components/parameters/TrialMode'
  /api/geo/location-dossier:
    get:
      tags:
      - Geo
      summary: Static risk & context dossier for a US location
      description: 'Static risk & context dossier for a US location. Pass lat+lon or a US address (geocoded for you). Composes five authoritative, keyless federal sources into one answer an agent cannot derive from training: Census place context (county, state, census tract, congressional district), FEMA flood zone + Special-Flood-Hazard-Area status, USGS ASCE 7-16 seismic design parameters (Ss, S1, SDS, SD1, seismic design category, PGA), the nearest NOAA/GHCN climate station, and — when a zip is supplied — US Census ACS 5-year demographics. Each layer is isolated: one source failing does not fail the rest. This is the slow-moving structural-risk picture (siting, insurance, due diligence), distinct from real-time weather/earthquake conditions.'
      operationId: geo_location-dossier
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                required:
                - data
                - meta
                properties:
                  data:
                    type: object
                    properties:
                      query:
                        type: object
                        properties:
                          lat:
                            type: number
                          lon:
                            type: number
                          zip:
                            type: string
                            nullable: true
                          address:
                            type: string
                            nullable: true
                        required:
                        - lat
                        - lon
                        - zip
                        - address
                        additionalProperties: false
                      summary:
                        type: object
                        properties:
                          county:
                            type: string
                            nullable: true
                          state:
                            type: string
                            nullable: true
                          floodRisk:
                            type: string
                            nullable: true
                          isSFHA:
                            type: boolean
                            nullable: true
                          seismicDesignCategory:
                            type: string
                            nullable: true
                          nearestStationKm:
                            type: number
                            nullable: true
                          riskIndexRating:
                            type: string
                            nullable: true
                        required:
                        - county
                        - state
                        - floodRisk
                        - isSFHA
                        - seismicDesignCategory
                        - nearestStationKm
                        - riskIndexRating
                        additionalProperties: false
                      place:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          data: {}
                        required:
                        - found
                        - error
                        additionalProperties: false
                      flood:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          data: {}
                        required:
                        - found
                        - error
                        additionalProperties: false
                      seismic:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          data: {}
                        required:
                        - found
                        - error
                        additionalProperties: false
                      climate:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          data: {}
                        required:
                        - found
                        - error
                        additionalProperties: false
                      demographics:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          data: {}
                        required:
                        - found
                        - error
                        additionalProperties: false
                      riskIndex:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          data: {}
                        required:
                        - found
                        - error
                        additionalProperties: false
                      sources:
                        type: array
                        items:
                          $ref: '#/components/schemas/Source'
                      note:
                        type: string
                    required:
                    - query
                    - summary
                    - place
                    - flood
                    - seismic
                    - climate
                    - demographics
                    - riskIndex
                    - sources
                    - note
                    additionalProperties: false
                  meta:
                    $ref: '#/components/schemas/CallMeta'
        '400':
          $ref: '#/components/responses/BadRequest'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '500':
          $ref: '#/components/responses/ServerError'
        '502':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: geo.location-dossier
      x-2s-version: null
      x-2s-price:
        usd: 0.018
      x-2s-accepts:
      - x402
      x-2s-response-shape: legacy
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.018000'
        protocols:
        - x402: {}
      parameters:
      - name: lat
        in: query
        required: false
        description: Latitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -90
          maximum: 90
      - name: lon
        in: query
        required: false
        description: Longitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -180
          maximum: 180
      - name: address
        in: query
        required: false
        description: Street address or full address string.
        schema:
          type: string
          minLength: 3
          maxLength: 200
      - name: zip
        in: query
        required: false
        description: US ZIP code.
        schema:
          type: string
          pattern: ^\d{5}$
      - name: riskCategory
        in: query
        required: false
        description: ASCE risk category (default II).
        schema:
          type: string
          enum:
          - I
          - II
          - III
          - IV
      - name: siteClass
        in: query
        required: false
        description: ASCE soil site class (default D).
        schema:
          type: string
          enum:
          - A
          - B
          - C
          - D
          - E
      - $ref: '#/components/parameters/TrialMode'
  /api/geo/nearby:
    get:
      tags:
      - Geo
      summary: 'Everything around a coordinate in one call: nearby airports'
      description: 'Everything around a coordinate in one call: nearby airports (IATA/ICAO, type, distance), public K-12 schools (name, district, enrollment, distance), NOAA climate stations (for chaining into /api/climate/station-history), and earthquakes from the past week (magnitude, depth, time). Pass lat/lon plus optional radiusKm (default 25, max 200) and per-category limit (default 5). Each category returns an independent found/error block, so one slow source never empties the rest. Site assessment, relocation research, travel planning, and risk screening. Each category is also a standalone endpoint (/api/airport/near, /api/edu/school-lookup, /api/climate/station-near, /api/quakes/recent).'
      operationId: geo_nearby
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: Per-category nearby blocks (airports, schools, climate stations, recent quakes) around a coordinate.
          content:
            application/json:
              schema:
                type: object
                required:
                - data
                - meta
                properties:
                  data:
                    type: object
                    properties:
                      lat:
                        type: number
                      lon:
                        type: number
                      radiusKm:
                        type: number
                      airports:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          count:
                            type: number
                          items:
                            type: array
                            items:
                              type: object
                              additionalProperties: {}
                        required:
                        - found
                        - error
                        - count
                        - items
                        additionalProperties: false
                      schools:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          count:
                            type: number
                          items:
                            type: array
                            items:
                              type: object
                              additionalProperties: {}
                        required:
                        - found
                        - error
                        - count
                        - items
                        additionalProperties: false
                      climateStations:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          count:
                            type: number
                          items:
                            type: array
                            items:
                              type: object
                              additionalProperties: {}
                        required:
                        - found
                        - error
                        - count
                        - items
                        additionalProperties: false
                      quakes:
                        type: object
                        properties:
                          found:
                            type: boolean
                          error:
                            type: string
                            nullable: true
                          count:
                            type: number
                          items:
                            type: array
                            items:
                              type: object
                              additionalProperties: {}
                        required:
                        - found
                        - error
                        - count
                        - items
                        additionalProperties: false
                        description: Earthquakes within radiusKm (min 50km search radius) from the past 7 days, magnitude ≥ 2.
                      sources:
                        type: array
                        items:
                          $ref: '#/components/schemas/Source'
                    required:
                    - lat
                    - lon
                    - radiusKm
                    - airports
                    - schools
                    - climateStations
                    - quakes
                    - sources
                    additionalProperties: false
                  meta:
                    $ref: '#/components/schemas/CallMeta'
        '400':
          $ref: '#/components/responses/BadRequest'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '500':
          $ref: '#/components/responses/ServerError'
        '502':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: geo.nearby
      x-2s-version: null
      x-2s-price:
        usd: 0.009
      x-2s-accepts:
      - x402
      x-2s-response-shape: legacy
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.009000'
        protocols:
        - x402: {}
      parameters:
      - name: lat
        in: query
        required: true
        description: Latitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -90
          maximum: 90
      - name: lon
        in: query
        required: true
        description: Longitude in decimal degrees (WGS84).
        schema:
          type: number
          minimum: -180
          maximum: 180
      - name: radiusKm
        in: query
        required: false
        description: Radius km.
        schema:
          type: number
          minimum: 1
          maximum: 200
          default: 25
      - name: limit
        in: query
        required: false
        description: Maximum number of results to return.
        schema:
          type: integer
          minimum: 1
          maximum: 20
          default: 5
      - $ref: '#/components/parameters/TrialMode'
  /api/geo/postal:
    get:
      tags:
      - Geo
      summary: Resolve a postal/ZIP code to its place name(s)
      description: 'Resolve a postal/ZIP code to its place name(s), administrative divisions, and coordinates. Pass `postalCode` and a 2-letter `country` (default US). Returns each matching locality: place, admin1 (state/province name + code), admin2 (county/district), and lat/lon. International — covers major markets (US, GB, CA, DE, FR, AU, NL, ES, IT, CH, SE, MX). Use it to normalize and enrich addresses, derive the state/county for a ZIP, or geolocate a postal code in an ETL pipeline.'
      operationId: geo_postal
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized envelope: items = matching localities for the postal code; total = items.length. 404-equivalent is an empty items array.'
          content:
            application/json:
              schema:
                type: object
                required:
                - data
                - meta
                properties:
                  data:
                    type: object
                    properties:
                      ok:
                        type: boolean
                        enum:
                        - true
                      items:
                        type: array
                        items:
                          type: object
                          properties:
                            country:
                              type: string
                            postalCode:
                              type: string
                            place:
                              type: string
                              nullable: true
                            admin1:
                              type: object
                              properties:
                                name:
                                  type: string
                                  nullable: true
                                code:
                                  type: string
                                  nullable: true
                              required:
                              - name
                              - code
                              additionalProperties: false
                              description: State/province.
                            admin2:
                              type: object
                              properties:
                                name:
                                  type: string
                                  nullable: true
                                code:
                                  type: string
                                  nullable: true
                              required:
                              - name
                              - code
                              additionalProperties: false
                              description: County/district.
                            coords:
                              type: object
                              properties:
                                lat:
                                  type: number
                                lon:
                                  type: number
                              required:
                              - lat
                              - lon
                              additionalProperties: false
                              nullable: true
                          required:
                          - country
                          - postalCode
                          - place
                          - admin1
                          - admin2
                          - coords
                          additionalProperties: false
                      total:
                        type: integer
                        nullable: true
                        description: Total matching rows upstream; null when unknown.
                      source:
                        $ref: '#/components/schemas/Source'
                    required:
                    - ok
                    - items
                    - total
                    - source
                    additionalProperties: false
                  meta:
                    $ref: '#/components/schemas/CallMeta'
        '400':
          $ref: '#/components/responses/BadRequest'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '500':
          $ref: '#/components/responses/ServerError'
        '502':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: geo.postal
      x-2s-version: null
      x-2s-price:
        usd: 0.0025
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.002500'
        protocols:
        - x402: {}
      parameters:
      - name: postalCode
        in: query
        required: true
        description: Postal code.
        schema:
          type: string
          minLength: 2
          maxLength: 16
      - name: country
        in: query
        required: false
        description: Country name or ISO country code.
        schema:
          type: string
          pattern: ^[A-Za-z]{2}$
      - $ref: '#/components/parameters/TrialMode'
  /api/geo/zip-resolve:
    get:
      tags:
      - Geo
      summary: Resolve a US ZIP code to the census tract(s), county, CBSA
      description: 'Resolve a US ZIP code to the census tract(s), county, CBSA (metro), and congressional district it covers — each with HUD-USPS allocation ratios (by residential, business, other, and total address counts). A ZIP is a mail-delivery route set, not a polygon, so it spans multiple geographies; the ratios tell you how much of the ZIP falls in each — the canonical join when you have a ZIP but a dataset is keyed by county/tract/district. Source: HUD-USPS ZIP Crosswalk (public domain).'
      operationId: geo_zip-resolve
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized envelope: items = [one ZIP with its tract/county/CBSA/CD lists, each carrying allocation ratios]; total = 1.'
          content:
            application/json:
              schema:
                type: object
                required:
                - data
                - meta
                properties:
                  data:
                    type: object
                    properties:
                      ok:
                        type: boolean
                        enum:
                        - true
                      items:
                        type: array
                        items:
                          type: object
                          properties:
                            zip:
                              type: string
                            city:
                              type: string
                              nullable: true
                            state:
                              type: string
                              nullable: true
                            tract:
                              type: array
                              items:
                                type: object
                                properties:
                                  geoid:
                                    type: string
                                  resRatio:
                                    type: number
                                    description: Share of the ZIP’s residential addresses in this geography.
                                  busRatio:
                                    type: number
                                    description: Share of business addresses.
                                  othRatio:
                                    type: number
                                    description: Share of other addresses.
                                  totRatio:
                                    type: number
                                    description: Share of total addresses.
                                required:
                                - geoid
                                - resRatio
                                - busRatio
                                - othRatio
                                - totRatio
                                additionalProperties: false
                            county:
                              type: array
                              items:
                                type: object
                                properties:
                                  geoid:
                                    type: string
                                  resRatio:
                                    type: number
                                    description: Share of the ZIP’s residential addresses in this geography.
                                  busRatio:
                                    type: number
                                    description: Share of business addresses.
                                  othRatio:
                                    type: number
                                    description: Share of other addresses.
                                  totRatio:
                                    type: number
                                    description: Share of total addresses.
                                required:
                                - geoid
                                - resRatio
                                - busRatio
                                - othRatio
                                - totRatio
                                additionalProperties: false
                            cbsa:
                              type: array
                              items:
                                type: object
                                properties:
                                  geoid:
                                    type: string
                                  resRatio:
                                    type: number
                                    description: Share of the ZIP’s residential addresses in this geography.
                                  busRatio:
                                    type: number
                                    description: Share of business addresses.
                                  othRatio:
                                    type: number
                                    description: Share of other addresses.
                                  totRatio:
                                    type: number
                                    description: Share of total addresses.
                                required:
                                - geoid
                                - resRatio
                                - busRatio
                                - othRatio
                                - totRatio
                                additionalProperties: false
                            congressionalDistrict:
                              type: array
                              items:
                                type: object
                                properties:
                                  geoid:
                                    type: string
                                  resRatio:
                                    type: number
                                    description: Share of the ZIP’s residential addresses in this geography.
                                  busRatio:
                                    type: number
                                    description: Share of business addresses.
                                  othRatio:
                                    type: number
                                    description: Share of other addresses.
                                  totRatio:
                                    type: number
                                    description: Share of total addresses.
                                required:
                                - geoid
                                - resRatio
                                - busRatio
                                - othRatio
                                - totRatio
                                additionalProperties: false
                          required:
                          - zip
                          - city
                          - state
                          - tract
                          - county
                          - cbsa
                          - congressionalDistrict
                          additionalProperties: false
                      total:
                        type: integer
                        nullable: true
                        description: Total matching rows upstream; null when unknown.
                      source:
                        $ref: '#/components/schemas/Source'
                    required:
                    - ok
                    - items
                    - total
                    - source
                    additionalProperties: false
                  meta:
                    $ref: '#/components/schemas/CallMeta'
        '400':
          $ref: '#/components/responses/BadRequest'
        '402':
          $ref: '#/components/responses/PaymentRequired'
        '405':
          $ref: '#/components/responses/MethodNotAllowed'
        '500':
          $ref: '#/components/responses/ServerError'
        '502':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: geo.zip-resolve
      x-2s-version: null
      x-2s-price:
        usd: 0.012
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.012000'
        protocols:
        - x402: {}
      parameters:
      - name: zip
        in: query
        required: true
        description: 5-digit US ZIP code, e.g. 90210.
        schema:
          type: string
          pattern: ^\d{5}$
      - $ref: '#/components/parameters/TrialMode'
components:
  schemas:
    Source:
      type: object
      description: 'Provenance of the data: upstream provider, source URL, and license.'
      properties:
        provider:
          type: string
          description: Upstream data provider.
        url:
          type: string
          description: Source URL or documentation link.
        license:
          type: string
          description: License / usage terms for the data.
    CallMeta:
      type: object
      description: Per-call meta envelope — endpoint id, cost, caller kind, settlement details.
    X402PaymentRequiredV2:
      type: object
      description: x402 v2 PaymentRequired envelope. Pick any entry from accepts[], sign for that rail, retry with the PAYMENT-SIGNATURE header.
      required:
      - x402Version
      - accepts
      properties:
        x402Version:
          type: integer
          const: 2
        error:
          type: string
          description: Human-readable reason payment is required.
        resource:
          type: string
          description: The resource URL being purchased.
        accepts:
          type: array
          description: Payment requirement options, one per supported network (Base USDC, Solana USDC).
          items:
            type: object
            required:
            - scheme
            - network
            - amount
            - asset
            - payTo
            - maxTimeoutSeconds
            properties:
              scheme:
                type: string
                enum:
                - exact
              network:
                type: string
                description: CAIP-2 network id, e.g. "eip155:8453" (Base) or "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp".
              amount:
                type: string
                description: Price in atomic asset units (USDC has 6 decimals).
              asset:
                type: string
                description: Asset contract address / mint.
              payTo:
                type: string
                description: Treasury address to pay.
              maxTimeoutSeconds:
                type: integer
              extra:
                type: object
                description: 'Rail-specific extras (EVM: EIP-712 domain name/version; Solana: feePayer).'
                additionalProperties: true
        extensions:
          type: object
          description: Optional discovery metadata (e.g. bazaar input/output schemas).
          additionalProperties: true
  responses:
    PaymentRequired:
      description: Payment required. Body contains the x402 PaymentRequirements envelope with a multi-network accepts array; the per-call price is in accepts[].amount (and on the operation as x-2s-price). Sign for whichever rail you hold USDC on (EIP-3009 for Base, partial SPL transfer for Solana) and retry with the PAYMENT-SIGNATURE header (X-PAYMENT also accepted for v1 clients).
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/X402PaymentRequiredV2'
    UpstreamError:
      description: Upstream provider error.
    MethodNotAllowed:
      description: Method not allowed — see `Allow` header for the supported method.
    ServerError:
      description: Internal server error.
    BadRequest:
      description: Bad request — invalid parameters.
  parameters:
    TrialMode:
      name: trial
      in: query
      required: false
      description: 'Try before you buy. Set to 1 for one free real call per endpoint per hour — no wallet or payment needed — to verify the endpoint before paying. Equivalent to sending the "X-2s-Trial: 1" request header. Works on every endpoint.'
      schema:
        type: integer
        enum:
        - 1
  securitySchemes:
    x402Payment:
      type: apiKey
      in: header
      name: PAYMENT-SIGNATURE
      description: 'x402 protocol v2: base64-encoded PaymentPayload. Call any paid endpoint without auth to receive a 402 with a multi-network PaymentRequirements envelope. Sign for either rail: EIP-3009 transferWithAuthorization (Base USDC) OR a partial SPL token transfer (Solana USDC). Retry with PAYMENT-SIGNATURE header. X-PAYMENT is also accepted for v1 buyer clients. See https://x402.org.'