openapi: 3.2.0
info:
  title: 2s — the (most) everything Barcode 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: barcode
paths:
  /api/barcode/generate:
    post:
      tags:
      - barcode
      summary: Generate QR / Aztec / Data Matrix / PDF417 codes from
      description: Generate QR / Aztec / Data Matrix / PDF417 codes from structured payloads (url, wifi, vcard, vevent, email, sms, tel, geo, bitcoin, json, text). QR supports rounded or dotted modules, solid colors or linear/radial gradients, transparent backgrounds, configurable error correction, and a centered logo image (URL or data URI).
      operationId: barcode_generate
      deprecated: false
      security:
      - x402Payment: []
      responses:
        '200':
          description: OK
        '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: barcode.generate
      x-2s-version: null
      x-2s-price:
        usd: 0.0025
      x-2s-accepts:
      - x402
      x-2s-response-shape: legacy
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.002500'
        protocols:
        - x402: {}
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                format:
                  type: string
                  enum:
                  - qr
                  - aztec
                  - datamatrix
                  - pdf417
                  default: qr
                  description: Format.
                data:
                  anyOf:
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - text
                        description: Filter results by type.
                      text:
                        type: string
                        minLength: 1
                        maxLength: 2000
                        description: Text.
                    required:
                    - type
                    - text
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - url
                        description: Filter results by type.
                      url:
                        type: string
                        format: uri
                        maxLength: 2000
                        description: URL to process.
                    required:
                    - type
                    - url
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - email
                        description: Filter results by type.
                      to:
                        type: string
                        format: email
                        description: End of the range.
                      subject:
                        type: string
                        maxLength: 200
                        description: Subject.
                      body:
                        type: string
                        maxLength: 1000
                        description: Body.
                    required:
                    - type
                    - to
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - sms
                        description: Filter results by type.
                      to:
                        type: string
                        minLength: 1
                        maxLength: 50
                        description: End of the range.
                      body:
                        type: string
                        maxLength: 1000
                        description: Body.
                    required:
                    - type
                    - to
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - phone
                        description: Filter results by type.
                      number:
                        type: string
                        minLength: 1
                        maxLength: 50
                        description: Item number or identifier.
                    required:
                    - type
                    - number
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - wifi
                        description: Filter results by type.
                      ssid:
                        type: string
                        minLength: 1
                        maxLength: 100
                        description: Ssid.
                      password:
                        type: string
                        maxLength: 200
                        description: Password.
                      security:
                        type: string
                        enum:
                        - WPA
                        - WEP
                        - none
                        description: Security.
                      hidden:
                        type: boolean
                        description: Hidden.
                    required:
                    - type
                    - ssid
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - vcard
                        description: Filter results by type.
                      name:
                        type: string
                        minLength: 1
                        maxLength: 200
                        description: Name to search for.
                      firstName:
                        type: string
                        maxLength: 100
                        description: First name to filter by.
                      lastName:
                        type: string
                        maxLength: 100
                        description: Last name to filter by.
                      phone:
                        type: string
                        maxLength: 50
                        description: Phone.
                      email:
                        type: string
                        format: email
                        description: Email.
                      org:
                        type: string
                        maxLength: 200
                        description: Org.
                      title:
                        type: string
                        maxLength: 200
                        description: Title to search for.
                      url:
                        type: string
                        format: uri
                        description: URL to process.
                      note:
                        type: string
                        maxLength: 500
                        description: Note.
                    required:
                    - type
                    - name
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - geo
                        description: Filter results by type.
                      lat:
                        type: number
                        minimum: -90
                        maximum: 90
                        description: Latitude in decimal degrees (WGS84).
                      lon:
                        type: number
                        minimum: -180
                        maximum: 180
                        description: Longitude in decimal degrees (WGS84).
                      altitude:
                        type: number
                        description: Altitude.
                    required:
                    - type
                    - lat
                    - lon
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - bitcoin
                        description: Filter results by type.
                      address:
                        type: string
                        minLength: 1
                        maxLength: 100
                        description: Street address or full address string.
                      amount:
                        type: number
                        exclusiveMinimum: true
                        minimum: 0
                        description: Amount.
                      label:
                        type: string
                        maxLength: 200
                        description: Label.
                      message:
                        type: string
                        maxLength: 500
                        description: Message.
                    required:
                    - type
                    - address
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - calendar
                        description: Filter results by type.
                      title:
                        type: string
                        minLength: 1
                        maxLength: 200
                        description: Title to search for.
                      start:
                        type: string
                        format: date-time
                        description: Start.
                      end:
                        type: string
                        format: date-time
                        description: End.
                      location:
                        type: string
                        maxLength: 200
                        description: Location.
                      description:
                        type: string
                        maxLength: 1000
                        description: Description.
                    required:
                    - type
                    - title
                    - start
                    - end
                    additionalProperties: false
                  - type: object
                    properties:
                      type:
                        type: string
                        enum:
                        - json
                        description: Filter results by type.
                      value:
                        description: Value.
                    required:
                    - type
                    additionalProperties: false
                  description: Data.
                output:
                  type: string
                  enum:
                  - svg
                  - png
                  - dataurl
                  default: svg
                  description: Output.
                size:
                  type: integer
                  minimum: 64
                  maximum: 4096
                  default: 512
                  description: Size.
                margin:
                  type: integer
                  minimum: 0
                  maximum: 16
                  default: 4
                  description: Margin.
                errorCorrection:
                  type: string
                  enum:
                  - L
                  - M
                  - Q
                  - H
                  default: M
                  description: L=~7%, M=~15%, Q=~25%, H=~30% recoverable damage (QR only).
                style:
                  type: object
                  properties:
                    modules:
                      type: string
                      enum:
                      - square
                      - rounded
                      - dots
                      description: Modules.
                    foreground:
                      anyOf:
                      - type: string
                      - type: object
                        properties:
                          type:
                            type: string
                            enum:
                            - linear
                            - radial
                            description: Gradient type.
                          stops:
                            type: array
                            items:
                              type: object
                              properties:
                                offset:
                                  type: number
                                  minimum: 0
                                  maximum: 1
                                  description: Number of results to skip before returning (pagination offset).
                                color:
                                  type: string
                                  description: Color.
                              required:
                              - offset
                              - color
                              additionalProperties: false
                            minItems: 2
                            maxItems: 10
                            description: Stops.
                          rotation:
                            type: number
                            description: Linear gradient rotation in degrees.
                        required:
                        - type
                        - stops
                        additionalProperties: false
                      description: Foreground.
                    background:
                      type: string
                      description: CSS color or "transparent".
                    logo:
                      type: object
                      properties:
                        source:
                          type: string
                          description: 'https:// URL or data: URI. QR only.'
                        sizePct:
                          type: number
                          minimum: 0.05
                          maximum: 0.4
                          description: Size pct.
                        padding:
                          type: number
                          minimum: 0
                          maximum: 32
                          description: Padding.
                        background:
                          type: string
                          description: Background.
                        cornerRadius:
                          type: number
                          minimum: 0
                          maximum: 64
                          description: Corner radius.
                      required:
                      - source
                      additionalProperties: false
                      description: Logo.
                  additionalProperties: false
                  description: Style.
              required:
              - data
              additionalProperties: false
      parameters:
      - $ref: '#/components/parameters/TrialMode'
components:
  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
  schemas:
    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
  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.'