MarketAux

Marketaux is a global financial and stock market news API that pairs every article with entity recognition and sentiment analysis. It aggregates 5,000+ news sources in 30+ languages, tracking 200,000+ entities — equities, indices, ETFs, mutual funds, currencies, and cryptocurrencies — across 80+ markets. Beyond filtered news feeds, it provides entity statistics time series, aggregations, and trending-entity endpoints for identifying the best and worst performing entities in the news, with a free self-serve tier.

MarketAux publishes 1 API on the APIs.io network. Tagged areas include News, Financial News, Stock Market, Sentiment Analysis, and Market Data.

MarketAux’s developer surface includes documentation, API reference, getting-started guide, pricing, signup flow, support, FAQ, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

44.1/100 developing ▬ flat Agent 40/100 agent ready Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1

AccessFreemiumSelf serve

1 APIs 1 MCP Servers

NewsFinancial NewsStock MarketSentiment AnalysisMarket DataEntity RecognitionPublic APIs

Kin Score

Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1

Composite quality — 44.1/100 · developing

Contract Quality 4.0 / 25

Developer Ergonomics 8.6 / 20

Commercial Clarity 15.3 / 20

Operational Transparency 4.1 / 13

Governance 1.4 / 12

Discoverability 9.4 / 10

Agent readiness — 40/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/marketaux: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

MarketAux API

Live stock market news with tagged tickers, per-entity sentiment and match scores, entity statistics and trending endpoints, delivered as a GET-only JSON API authenticated with ...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Rate Limits 1

Documented rate limits and quota policies.

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Conventions

Lifecycle

Conformance

DataModel

Build 2

SDKs, sample code, and the tooling you integrate with

Examples

Examples

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

FAQ

FAQ

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

PublicAPIsListing

PublicAPIsListing

Source (apis.yml)

aid: marketaux
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/marketaux.png
name: MarketAux
description: Marketaux is a global financial and stock market news API that pairs every article with entity recognition and
  sentiment analysis. It aggregates 5,000+ news sources in 30+ languages, tracking 200,000+ entities — equities, indices,
  ETFs, mutual funds, currencies, and cryptocurrencies — across 80+ markets. Beyond filtered news feeds, it provides entity
  statistics time series, aggregations, and trending-entity endpoints for identifying the best and worst performing entities
  in the news, with a free self-serve tier.
url: https://www.marketaux.com/
specificationVersion: '0.20'
created: '2026-05-28'
modified: '2026-07-22'
x-source: public-apis/public-apis
x-category: News
x-tier: 3
x-tier-reason: bulk-registered-from-public-apis
tags:
- News
- Financial News
- Stock Market
- Sentiment Analysis
- Market Data
- Entity Recognition
- Public APIs
apis:
- name: MarketAux API
  description: Live stock market news with tagged tickers, per-entity sentiment and match scores, entity statistics and trending
    endpoints, delivered as a GET-only JSON API authenticated with an api_token query parameter.
  humanURL: https://www.marketaux.com/documentation
  baseURL: https://api.marketaux.com/v1
  tags:
  - News
  - Financial News
  - Sentiment Analysis
  properties:
  - type: Documentation
    url: https://www.marketaux.com/documentation
  - type: OpenAPI
    url: openapi/marketaux-openapi.yml
  - type: Overlay
    url: overlays/marketaux-openapi-overlay.yaml
  - type: MCPServer
    url: mcp/marketaux-mcp.yml
common:
- type: Website
  url: https://www.marketaux.com/
- type: Documentation
  url: https://www.marketaux.com/documentation
- type: APIReference
  url: https://www.marketaux.com/documentation
- type: GettingStarted
  url: https://www.marketaux.com/documentation#introduction
- type: Pricing
  url: https://www.marketaux.com/pricing
- type: SignUp
  url: https://www.marketaux.com/register
- type: Login
  url: https://www.marketaux.com/login
- type: Support
  url: https://www.marketaux.com/contact
- type: FAQ
  url: https://www.marketaux.com/faq
- type: TermsOfService
  url: https://www.marketaux.com/tos
- type: PrivacyPolicy
  url: https://www.marketaux.com/privacy
- type: Authentication
  url: authentication/marketaux-authentication.yml
- type: Plans
  url: plans/marketaux-plans.yml
- type: RateLimits
  url: rate-limits/marketaux-rate-limits.yml
- type: ErrorCatalog
  url: errors/marketaux-problem-types.yml
- type: Conventions
  url: conventions/marketaux-conventions.yml
- type: Lifecycle
  url: lifecycle/marketaux-lifecycle.yml
- type: Conformance
  url: conformance/marketaux-conformance.yml
- type: DataModel
  url: data-model/marketaux-data-model.yml
- type: Examples
  url: examples/marketaux-examples.yml
- type: Packages
  url: packages/marketaux-packages.yml
- type: WellKnown
  url: well-known/marketaux-well-known.yml
- type: LLMsTxt
  url: llms/marketaux-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/marketaux-domain-security.yml
- type: PublicAPIsListing
  url: https://github.com/public-apis/public-apis
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

MarketAux

Kin Score

APIs 1

MarketAux API

MCP Servers 1

marketaux-mcp.yml

Pricing Plans 1

Marketaux Plans