openapi: 3.2.0
info:
  title: 2s — the (most) everything News 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: News
paths:
  /api/news/hn-item:
    get:
      tags:
      - News
      summary: Fetch a specific Hacker News item (story, comment, job
      description: Fetch a specific Hacker News item (story, comment, job, poll) by its numeric ID. Returns id, type, author, time (unix + ISO), title, URL, text, score, descendant count, kid count, parent (for comments), dead/deleted flags, canonical news.ycombinator.com URL.
      operationId: news_hn-item
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized envelope: items = [HN item] (story/comment/job/poll by id); total = 1, or items = [] / total = 0 when the id is unknown.'
          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:
                            id:
                              type: integer
                            type:
                              type: string
                              nullable: true
                            by:
                              type: string
                              nullable: true
                            time:
                              type: integer
                              nullable: true
                            timeIso:
                              type: string
                              nullable: true
                            title:
                              type: string
                              nullable: true
                            url:
                              type: string
                              nullable: true
                            text:
                              type: string
                              nullable: true
                            score:
                              type: integer
                              nullable: true
                            descendantsCount:
                              type: integer
                              nullable: true
                            kidsCount:
                              type: integer
                            parent:
                              type: integer
                              nullable: true
                            deleted:
                              type: boolean
                            dead:
                              type: boolean
                            hnUrl:
                              type: string
                              format: uri
                          required:
                          - id
                          - type
                          - by
                          - time
                          - timeIso
                          - title
                          - url
                          - text
                          - score
                          - descendantsCount
                          - kidsCount
                          - parent
                          - deleted
                          - dead
                          - hnUrl
                          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: news.hn-item
      x-2s-version: null
      x-2s-price:
        usd: 0.003
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.003000'
        protocols:
        - x402: {}
      parameters:
      - name: id
        in: query
        required: true
        description: Unique identifier of the record to fetch.
        schema:
          type: integer
          minimum: 1
          maximum: 1000000000
      - $ref: '#/components/parameters/TrialMode'
  /api/news/hn-search:
    get:
      tags:
      - News
      summary: Full-text search across all of Hacker News (via the Algolia
      description: 'Full-text search across all of Hacker News (via the Algolia HN API). Search stories or comments by keyword, sorted by relevance or by date (newest first). Filter by tags (story/comment/ask_hn/show_hn/poll) and by author. Each hit: title, URL, author, points, comment count, story/comment text, created time, and canonical HN URL. Net-new vs news.hn-top (curated feeds) and news.search (general news).'
      operationId: news_hn-search
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized: items = search hits; meta.nbHits = total matches upstream.'
          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:
                            objectId:
                              type: string
                              nullable: true
                            type:
                              type: string
                            title:
                              type: string
                              nullable: true
                            url:
                              type: string
                              nullable: true
                            author:
                              type: string
                              nullable: true
                            points:
                              type: number
                              nullable: true
                            numComments:
                              type: number
                              nullable: true
                            storyText:
                              type: string
                              nullable: true
                            commentText:
                              type: string
                              nullable: true
                            createdAt:
                              type: string
                              nullable: true
                            storyId:
                              type: number
                              nullable: true
                            hnUrl:
                              type: string
                          required:
                          - objectId
                          - type
                          - title
                          - url
                          - author
                          - points
                          - numComments
                          - storyText
                          - commentText
                          - createdAt
                          - storyId
                          - hnUrl
                          additionalProperties: false
                      total:
                        type: integer
                        nullable: true
                        description: Total matching rows upstream; null when unknown.
                      source:
                        $ref: '#/components/schemas/Source'
                      meta:
                        type: object
                        properties:
                          query:
                            type: string
                          nbHits:
                            type: number
                        required:
                        - query
                        - nbHits
                        additionalProperties: false
                    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: news.hn-search
      x-2s-version: null
      x-2s-price:
        usd: 0.003
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.003000'
        protocols:
        - x402: {}
      parameters:
      - name: query
        in: query
        required: false
        description: Search keywords (may be empty when filtering by tags/author).
        schema:
          type: string
          maxLength: 400
          default: ''
      - name: tags
        in: query
        required: false
        description: Tags.
        schema:
          type: string
          enum:
          - story
          - comment
          - ask_hn
          - show_hn
          - poll
      - name: sort
        in: query
        required: false
        description: Field to sort results by.
        schema:
          type: string
          enum:
          - relevance
          - date
      - name: author
        in: query
        required: false
        description: Restrict to one HN author.
        schema:
          type: string
          maxLength: 40
      - name: limit
        in: query
        required: false
        description: Maximum number of results to return.
        schema:
          type: integer
          minimum: 1
          maximum: 50
      - $ref: '#/components/parameters/TrialMode'
  /api/news/hn-top:
    get:
      tags:
      - News
      summary: Hacker News feed of items
      description: Hacker News feed of items. Pass kind = top (default) | new | best | ask | show | job to pick the feed. Returns each item's id, type, author, time (unix + ISO), title, URL, text (for self-posts), score, descendant + kid counts, parent (for comments), dead/deleted flags, and canonical news.ycombinator.com URL. Default limit = 30, max 100. Useful for tech-sentiment + topic tracking.
      operationId: news_hn-top
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized envelope: items = Hacker News feed items; total = null (HN feeds report no true count); meta.kind echoes the requested feed.'
          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:
                            id:
                              type: integer
                            type:
                              type: string
                              nullable: true
                            by:
                              type: string
                              nullable: true
                            time:
                              type: integer
                              nullable: true
                            timeIso:
                              type: string
                              nullable: true
                            title:
                              type: string
                              nullable: true
                            url:
                              type: string
                              nullable: true
                            text:
                              type: string
                              nullable: true
                            score:
                              type: integer
                              nullable: true
                            descendantsCount:
                              type: integer
                              nullable: true
                            kidsCount:
                              type: integer
                            parent:
                              type: integer
                              nullable: true
                            deleted:
                              type: boolean
                            dead:
                              type: boolean
                            hnUrl:
                              type: string
                              format: uri
                          required:
                          - id
                          - type
                          - by
                          - time
                          - timeIso
                          - title
                          - url
                          - text
                          - score
                          - descendantsCount
                          - kidsCount
                          - parent
                          - deleted
                          - dead
                          - hnUrl
                          additionalProperties: false
                      total:
                        type: integer
                        nullable: true
                        description: Total matching rows upstream; null when unknown.
                      source:
                        $ref: '#/components/schemas/Source'
                      meta:
                        type: object
                        properties:
                          kind:
                            type: string
                        required:
                        - kind
                        additionalProperties: false
                    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: news.hn-top
      x-2s-version: null
      x-2s-price:
        usd: 0.003
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.003000'
        protocols:
        - x402: {}
      parameters:
      - name: kind
        in: query
        required: false
        description: Kind.
        schema:
          type: string
          enum:
          - top
          - new
          - best
          - ask
          - show
          - job
          default: top
      - name: limit
        in: query
        required: false
        description: Maximum number of results to return.
        schema:
          type: integer
          minimum: 1
          maximum: 100
          default: 30
      - $ref: '#/components/parameters/TrialMode'
  /api/news/hn-user:
    get:
      tags:
      - News
      summary: Hacker News user profile by username
      description: Hacker News user profile by username. Returns id, account creation time (unix + ISO), karma, the about/bio text, number of items submitted, and the canonical news.ycombinator.com profile URL. Unknown user returns an empty result.
      operationId: news_hn-user
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized: items = [HN user] or [] when unknown.'
          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:
                            id:
                              type: string
                              nullable: true
                            created:
                              type: number
                              nullable: true
                            createdIso:
                              type: string
                              nullable: true
                            karma:
                              type: number
                              nullable: true
                            about:
                              type: string
                              nullable: true
                            submittedCount:
                              type: number
                              nullable: true
                            hnUrl:
                              type: string
                              nullable: true
                          required:
                          - id
                          - created
                          - createdIso
                          - karma
                          - about
                          - submittedCount
                          - hnUrl
                          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: news.hn-user
      x-2s-version: null
      x-2s-price:
        usd: 0.003
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.003000'
        protocols:
        - x402: {}
      parameters:
      - name: username
        in: query
        required: true
        description: HN username, e.g. pg, dang.
        schema:
          type: string
          minLength: 1
          maxLength: 40
      - $ref: '#/components/parameters/TrialMode'
  /api/news/search:
    get:
      tags:
      - News
      summary: Live news search. Returns recent headlines with title, URL
      description: Live news search. Returns recent headlines with title, URL, snippet, publisher source, relative age, and a breaking-news flag — real-time coverage past any model training cutoff. Supports count (1-20), offset, country (2-letter), and freshness (pd=past day, pw=past week, pm=past month, py=past year). Use for current events, market-moving developments, monitoring, and "what happened with X" questions. For general web results see /api/search/web; for Hacker News specifically see /api/news/hn-top.
      operationId: news_search
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: 'Normalized envelope: items = recent news headlines (publisher, age, breaking flag); total = null (Brave reports no count); meta.query echoes the search.'
          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:
                            title:
                              type: string
                            url:
                              type: string
                            description:
                              type: string
                              nullable: true
                            source:
                              type: string
                              nullable: true
                              description: Publisher hostname.
                            age:
                              type: string
                              nullable: true
                              description: Relative recency, e.g. "5 hours ago".
                            breaking:
                              type: boolean
                            thumbnail:
                              type: string
                              nullable: true
                          required:
                          - title
                          - url
                          - description
                          - source
                          - age
                          - breaking
                          - thumbnail
                          additionalProperties: false
                      total:
                        type: integer
                        nullable: true
                        description: Total matching rows upstream; null when unknown.
                      source:
                        $ref: '#/components/schemas/Source'
                      meta:
                        type: object
                        properties:
                          query:
                            type: string
                        required:
                        - query
                        additionalProperties: false
                    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':
          $ref: '#/components/responses/UpstreamError'
      x-2s-id: news.search
      x-2s-version: null
      x-2s-price:
        usd: 0.0225
      x-2s-accepts:
      - x402
      x-2s-response-shape: normalized
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.022500'
        protocols:
        - x402: {}
      parameters:
      - name: q
        in: query
        required: true
        description: News query.
        schema:
          type: string
          minLength: 1
          maxLength: 400
      - name: count
        in: query
        required: false
        description: Count.
        schema:
          type: integer
          minimum: 1
          maximum: 20
          default: 10
      - name: offset
        in: query
        required: false
        description: Number of results to skip before returning (pagination offset).
        schema:
          type: integer
          minimum: 0
          maximum: 9
          default: 0
      - name: country
        in: query
        required: false
        description: Country name or ISO country code.
        schema:
          type: string
          pattern: ^[a-zA-Z]{2}$
      - name: freshness
        in: query
        required: false
        description: Freshness.
        schema:
          type: string
          enum:
          - pd
          - pw
          - pm
          - py
      - $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.'