Forex website screenshot

Forex

A collection of foreign exchange and currency conversion APIs.

Forex publishes 3 APIs on the APIs.io network: Account API, Rates API, and Reference API. Tagged areas include Currency, Exchange Rates, Financial Data, Forex, and Trading.

Forex’s developer surface includes authentication and 2 more developer resources.

🌐 Visit website 📡 Source on GitHub
22.5/100 emerging ▬ flat Agent 23/100 agent aware Full breakdown ↓
scored 2026-08-24 · rubric v0.13.0
AccessFreemiumSelf serve⚡ Free to try
7 APIs
CurrencyExchange RatesFinancial DataForexTrading

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-24 · rubric v0.13.0
Composite quality — 22.5/100 · emerging
Contract Quality 9.7 / 21
Developer Ergonomics 1.0 / 17
Access Clarity 2.7 / 17
Operational Transparency 0.9 / 11
Contract Governance 0.0 / 10
Discoverability 5.5 / 9
Regulatory Posture 4.5 / 15
Agent readiness — 23/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 4 / 4
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime (on an ambiguous tag, where no other regime matched), so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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/forex: 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 7

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

Fixer.io API

Foreign exchange rates and currency conversion API.

ExchangeRate-API

Free currency conversion API with 161 currencies.

CurrencyAPI

Accurate and reliable foreign exchange rates API.

Frankfurter API

Free and open-source API for current and historical forex rates.

Forex Account API

The Account API from Forex — 1 operation(s) for account.

Forex Rates API

The Rates API from Forex — 3 operation(s) for rates.

Forex Reference API

The Reference API from Forex — 1 operation(s) for reference.

Scroll for all 7

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Open Exchange Rates Account API

OPEN COLLECTION

Open Exchange Account Rates API

OPEN COLLECTION

Open Exchange Rates Account Reference API

OPEN COLLECTION

Open Exchange Rates API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Forex Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Forex Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Forex Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Forex Authentication

apiKey · 1 scheme

SECURITY

Forex Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Forex Agentic Access

5 operations

5 operations · 0 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Source (apis.yml)

apis.yml Raw ↑ 
aid: forex
name: Forex
description: A collection of foreign exchange and currency conversion APIs.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  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/forex.png
url: https://raw.githubusercontent.com/api-evangelist/forex/refs/heads/main/apis.yml
created: '2024-01-15'
modified: '2026-05-19'
specificationVersion: '0.23'
tags:
- Currency
- Exchange Rates
- Financial Data
- Forex
- Trading
apis:
- aid: forex:fixer
  name: Fixer.io API
  description: Foreign exchange rates and currency conversion API.
  humanURL: https://fixer.io
  baseURL: https://api.fixer.io
  tags:
  - Currency
  - Exchange Rates
  properties:
  - type: Documentation
    url: https://fixer.io/documentation
  - type: Pricing
    url: https://fixer.io/product
- aid: forex:exchangerate-api
  name: ExchangeRate-API
  description: Free currency conversion API with 161 currencies.
  humanURL: https://www.exchangerate-api.com
  baseURL: https://v6.exchangerate-api.com/v6
  tags:
  - Currency Conversion
  - Exchange Rates
  properties:
  - type: Documentation
    url: https://www.exchangerate-api.com/docs
  - type: Pricing
    url: https://www.exchangerate-api.com/pricing
  - type: TermsOfService
    url: https://www.exchangerate-api.com/terms
- aid: forex:currencyapi
  name: CurrencyAPI
  description: Accurate and reliable foreign exchange rates API.
  humanURL: https://currencyapi.com
  baseURL: https://api.currencyapi.com/v3
  tags:
  - Forex
  - Historical Data
  - Real-Time Rates
  properties:
  - type: Documentation
    url: https://currencyapi.com/docs
  - type: Pricing
    url: https://currencyapi.com/pricing
  - type: StatusPage
    url: https://status.currencyapi.com
- aid: forex:frankfurter
  name: Frankfurter API
  description: Free and open-source API for current and historical forex rates.
  humanURL: https://www.frankfurter.app
  baseURL: https://api.frankfurter.app
  tags:
  - Exchange Rates
  - Free
  - Open-Source
  tags_raw:
  - Exchange Rates
  - Free
  - Open Source
  properties:
  - type: Documentation
    url: https://www.frankfurter.app/docs
  - type: GitHubOrganization
    url: https://github.com/hakanensari/frankfurter
- aid: forex:forex-account-api
  name: Forex Account API
  description: The Account API from Forex — 1 operation(s) for account.
  humanURL: https://openexchangerates.org
  baseURL: https://openexchangerates.org/api
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/forex-account-api-openapi.yml
  - type: Documentation
    url: https://docs.openexchangerates.org
  - type: Pricing
    url: https://openexchangerates.org/signup
  - type: Authentication
    url: https://docs.openexchangerates.org/authentication
- aid: forex:forex-rates-api
  name: Forex Rates API
  description: The Rates API from Forex — 3 operation(s) for rates.
  humanURL: https://openexchangerates.org
  baseURL: https://openexchangerates.org/api
  tags:
  - Rates
  properties:
  - type: OpenAPI
    url: openapi/forex-rates-api-openapi.yml
  - type: Documentation
    url: https://docs.openexchangerates.org
  - type: Pricing
    url: https://openexchangerates.org/signup
  - type: Authentication
    url: https://docs.openexchangerates.org/authentication
- aid: forex:forex-reference-api
  name: Forex Reference API
  description: The Reference API from Forex — 1 operation(s) for reference.
  humanURL: https://openexchangerates.org
  baseURL: https://openexchangerates.org/api
  tags:
  - Reference
  properties:
  - type: OpenAPI
    url: openapi/forex-reference-api-openapi.yml
  - type: Documentation
    url: https://docs.openexchangerates.org
  - type: Pricing
    url: https://openexchangerates.org/signup
  - type: Authentication
    url: https://docs.openexchangerates.org/authentication
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
common:
- type: AgenticAccess
  url: agentic-access/forex-agentic-access.yml
- type: DomainSecurity
  url: security/forex-domain-security.yml
- type: Authentication
  url: authentication/forex-authentication.yml

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this
  • find_providersBrowse and filter every provider in the catalog.
  • get_provider_artifactsEvery artifact this provider publishes, grouped by type.
  • get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
  • get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This provider 
curl "https://apis.io/api/v1/providers/forex"
All providers 
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose 
curl "https://apis.io/api/v1/providers/forex/operations?limit=25"
How their score was established 
curl "https://apis.io/api/v1/providers/forex/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.