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OpenAPI Specification

openapi: 3.2.0
info:
  title: Agent Newsstand History API
  description: Market data and web intelligence for autonomous agents. Trading context for tokenized assets (candles, earnings, filings, macro, calendar), plus search, reader, unlock, and URL safety. 15 modules across 5 categories. Per-call USDC micropayments on Base via x402. Free sample twins at /v1/sample/* — inspect before paying. Machine-readable manifest at /.well-known/x402.
  contact:
    name: Agent Newsstand
    email: admin@agentnewsstand.com
  version: 0.2.0
tags:
- name: History
  description: '[markets] Daily EOD closes for a venue symbol''s underlying (Yahoo chart).'
paths:
  /v1/history:
    get:
      tags:
      - History
      summary: History
      operationId: history_v1_history_get
      parameters:
      - name: symbol
        in: query
        required: true
        schema:
          type: string
          title: Symbol
      - name: days
        in: query
        required: false
        schema:
          type: integer
          default: 30
          title: Days
      - name: x-api-key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
                title: Response History V1 History Get
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError