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OpenAPI Specification

openapi: 3.2.0
info:
  title: Marketaux Sources API
  description: Global financial and stock market news API. Generate news feeds filtered by entity symbol, type, exchange, industry, country and more, with per-entity sentiment and match scores. Covers 5,000+ news sources globally in 30+ languages, tracking 200,000+ entities across 80+ markets. Also provides entity statistics (time series and aggregations) and trending-entity endpoints for charting the best and worst performing entities in the news.
  version: v1
  termsOfService: https://www.marketaux.com/tos
  contact:
    url: https://www.marketaux.com/contact
servers:
- url: https://api.marketaux.com
security:
- apiToken: []
tags:
- name: Sources
  description: News source metadata usable in news feed filters.
paths:
  /v1/news/sources:
    get:
      operationId: getNewsSources
      tags:
      - Sources
      summary: News sources
      description: View sources which can be used in other API requests (domains and source_ids filters). The limit is 50 for all requests. Available on all plans.
      parameters:
      - name: distinct_domain
        in: query
        description: Group distinct domains from sources. This will make source_id null.
        schema:
          type: boolean
      - $ref: '#/components/parameters/language'
      - $ref: '#/components/parameters/page'
      responses:
        '200':
          description: News sources.
          content:
            application/json:
              schema:
                type: object
                properties:
                  meta:
                    $ref: '#/components/schemas/PaginationMeta'
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/NewsSource'
        '400':
          $ref: '#/components/responses/MalformedParameters'
        '401':
          $ref: '#/components/responses/InvalidApiToken'
        '402':
          $ref: '#/components/responses/UsageLimitReached'
        '429':
          $ref: '#/components/responses/RateLimitReached'
        '500':
          $ref: '#/components/responses/ServerError'
        '503':
          $ref: '#/components/responses/MaintenanceMode'
components:
  parameters:
    language:
      name: language
      in: query
      description: 'Comma separated list of languages to include (e.g. en,es). Default is all. Supported languages: ar, bg, bn, cs, da, de, el, en, es, et, fa, fi, fr, he, hi, hr, hu, id, it, ja, ko, lt, multi, nl, no, pl, pt, ro, ru, sk, sv, ta, th, tr, uk, vi, zh.'
      schema:
        type: string
    page:
      name: page
      in: query
      description: Paginate through the result set. Default 1. The max result set cannot exceed 20,000 (e.g. with limit 50 the max page is 400).
      schema:
        type: integer
        default: 1
  responses:
    RateLimitReached:
      description: 'rate_limit_reached: Too many requests in the past 60 seconds. Rate limit and remaining requests can be found on the X-RateLimit-Limit header.'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    UsageLimitReached:
      description: 'usage_limit_reached: Usage limit of your plan has been reached. Usage limit and remaining requests can be found on the X-UsageLimit-Limit header.'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    ServerError:
      description: 'server_error: A server error occurred.'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    InvalidApiToken:
      description: 'invalid_api_token: Invalid API token.'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error:
              code: invalid_api_token
              message: An invalid API token was supplied.
    MalformedParameters:
      description: 'malformed_parameters: Validation of parameters failed. The failed parameters are usually shown in the error message.'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    MaintenanceMode:
      description: 'maintenance_mode: The service is currently under maintenance.'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    PaginationMeta:
      type: object
      description: Pagination metadata returned on list endpoints.
      properties:
        found:
          type: integer
          description: The number of results found for the request.
        returned:
          type: integer
          description: The number of results returned on the page. If lower than limit, there are no more results after this page.
        limit:
          type: integer
          description: The limit based on the limit parameter.
        page:
          type: integer
          description: The page number based on the page parameter.
    NewsSource:
      type: object
      description: A news source feed.
      properties:
        source_id:
          type:
          - string
          - 'null'
          description: The unique ID of the source feed, usable in the source_ids and exclude_source_ids parameters. Null when distinct_domain=true.
        domain:
          type: string
          description: The domain of the source, usable in the domains and exclude_domains parameters.
        language:
          type: string
          description: The source language.
      example:
        source_id: adweek.com-1
        domain: adweek.com
        language: en
    Error:
      type: object
      description: Marketaux error envelope.
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              description: Machine-readable error code.
            message:
              type: string
              description: Human-readable error message.
      example:
        error:
          code: malformed_parameters
          message: The published_before parameter(s) are incorrectly formatted.
  securitySchemes:
    apiToken:
      type: apiKey
      in: query
      name: api_token
      description: Your API token, found on your account dashboard after signing up at https://www.marketaux.com/register. Passed as a GET parameter on every request.
externalDocs:
  description: Marketaux API documentation
  url: https://www.marketaux.com/documentation
x-provenance:
  generated: '2026-07-22'
  method: generated
  source: https://www.marketaux.com/documentation
  note: Marketaux publishes no machine-readable API definition (probes of www.marketaux.com and api.marketaux.com for /openapi.json, /openapi.yaml, /swagger.json, /v1/openapi.json and /api-docs all returned 404 on 2026-07-22). This OpenAPI was generated faithfully from the published HTML API documentation; every path, parameter, response field, and error code below is documented at the source URL. Example values are taken verbatim from the documentation.