FXRatesAPI website screenshot

FXRatesAPI

FXRatesAPI is a foreign exchange rates REST API that delivers real-time and historical currency exchange rates for 185+ fiat currencies plus major cryptocurrencies and precious metals. It exposes JSON endpoints for the latest rates, historical rates for any past date, time-series ranges, currency conversion, and a currencies list. A limited tier is usable without an API key; higher request quotas, more frequent updates, and additional base-currency switching are unlocked with a paid API key passed via the api_key query parameter or an Authorization Bearer header.

FXRatesAPI publishes 5 APIs on the APIs.io network, including Convert API, Currencies API, Historical Rates API, and 2 more. Tagged areas include Foreign Exchange, FX, Currency, Exchange Rates, and Forex.

FXRatesAPI’s developer surface includes authentication, documentation, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
35.0/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemiumOpen⚡ Free to try
5 APIs
Foreign ExchangeFXCurrencyExchange RatesForexCurrency ConversionHistorical RatesFinancial DataCryptocurrencies

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 35.0/100 · thin
Contract Quality 15.2 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 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 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/fxratesapi: 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 5

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

FXRatesAPI Convert API

Convert an amount between two currencies.

FXRatesAPI Currencies API

List of supported currencies and their metadata.

FXRatesAPI Historical Rates API

Exchange rates for a specific past date.

FXRatesAPI Latest Rates API

Most recent exchange rates for a base currency.

FXRatesAPI Time-Series API

Daily exchange rates across a date range.

Open Collections 1

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

FXRatesAPI

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Fxratesapi Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Fxratesapi Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Fxratesapi Finops

FINOPS

Security Posture 2

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

Fxratesapi Authentication

apiKey/http · 2 schemes

SECURITY

Fxratesapi Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Fxratesapi Agentic Access

5 operations

5 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

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

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: fxratesapi
url: https://raw.githubusercontent.com/api-evangelist/fxratesapi/refs/heads/main/apis.yml
name: FXRatesAPI
kind: company
description: FXRatesAPI is a foreign exchange rates REST API that delivers real-time and historical currency exchange rates
  for 185+ fiat currencies plus major cryptocurrencies and precious metals. It exposes JSON endpoints for the latest rates,
  historical rates for any past date, time-series ranges, currency conversion, and a currencies list. A limited tier is usable
  without an API key; higher request quotas, more frequent updates, and additional base-currency switching are unlocked with
  a paid API key passed via the api_key query parameter or an Authorization Bearer header.
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Freemium · Open access
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fxratesapi.png
tags:
- Foreign Exchange
- FX
- Currency
- Exchange Rates
- Forex
- Currency Conversion
- Historical Rates
- Financial Data
- Cryptocurrencies
created: '2026-07-12'
modified: '2026-07-12'
specificationVersion: '0.19'
apis:
- aid: fxratesapi:fxratesapi-convert-api
  name: FXRatesAPI Convert API
  description: Convert an amount between two currencies.
  humanURL: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  baseURL: https://api.fxratesapi.com
  tags:
  - Convert
  properties:
  - type: OpenAPI
    url: openapi/fxratesapi-convert-api-openapi.yml
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  - type: Documentation
    url: https://fxratesapi.com/docs
  - type: PostmanCollection
    url: collections/fxratesapi.postman_collection.json
  - type: OpenCollection
    url: collections/fxratesapi.opencollection.json
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/historical-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/time-series-exchange-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/convert-currency
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/list-available-currencies
  - type: Documentation
    url: https://fxratesapi.com/docs/currency-list
- aid: fxratesapi:fxratesapi-currencies-api
  name: FXRatesAPI Currencies API
  description: List of supported currencies and their metadata.
  humanURL: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  baseURL: https://api.fxratesapi.com
  tags:
  - Currencies
  properties:
  - type: OpenAPI
    url: openapi/fxratesapi-currencies-api-openapi.yml
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  - type: Documentation
    url: https://fxratesapi.com/docs
  - type: PostmanCollection
    url: collections/fxratesapi.postman_collection.json
  - type: OpenCollection
    url: collections/fxratesapi.opencollection.json
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/historical-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/time-series-exchange-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/convert-currency
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/list-available-currencies
  - type: Documentation
    url: https://fxratesapi.com/docs/currency-list
- aid: fxratesapi:fxratesapi-historical-rates-api
  name: FXRatesAPI Historical Rates API
  description: Exchange rates for a specific past date.
  humanURL: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  baseURL: https://api.fxratesapi.com
  tags:
  - Historical Rates
  properties:
  - type: OpenAPI
    url: openapi/fxratesapi-historical-rates-api-openapi.yml
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  - type: Documentation
    url: https://fxratesapi.com/docs
  - type: PostmanCollection
    url: collections/fxratesapi.postman_collection.json
  - type: OpenCollection
    url: collections/fxratesapi.opencollection.json
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/historical-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/time-series-exchange-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/convert-currency
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/list-available-currencies
  - type: Documentation
    url: https://fxratesapi.com/docs/currency-list
- aid: fxratesapi:fxratesapi-latest-rates-api
  name: FXRatesAPI Latest Rates API
  description: Most recent exchange rates for a base currency.
  humanURL: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  baseURL: https://api.fxratesapi.com
  tags:
  - Latest Rates
  properties:
  - type: OpenAPI
    url: openapi/fxratesapi-latest-rates-api-openapi.yml
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  - type: Documentation
    url: https://fxratesapi.com/docs
  - type: PostmanCollection
    url: collections/fxratesapi.postman_collection.json
  - type: OpenCollection
    url: collections/fxratesapi.opencollection.json
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/historical-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/time-series-exchange-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/convert-currency
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/list-available-currencies
  - type: Documentation
    url: https://fxratesapi.com/docs/currency-list
- aid: fxratesapi:fxratesapi-time-series-api
  name: FXRatesAPI Time-Series API
  description: Daily exchange rates across a date range.
  humanURL: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  baseURL: https://api.fxratesapi.com
  tags:
  - Time-Series
  properties:
  - type: OpenAPI
    url: openapi/fxratesapi-time-series-api-openapi.yml
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/latest-exchange-rates
  - type: Documentation
    url: https://fxratesapi.com/docs
  - type: PostmanCollection
    url: collections/fxratesapi.postman_collection.json
  - type: OpenCollection
    url: collections/fxratesapi.opencollection.json
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/historical-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/time-series-exchange-rates
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/convert-currency
  - type: APIReference
    url: https://fxratesapi.com/docs/endpoints/list-available-currencies
  - type: Documentation
    url: https://fxratesapi.com/docs/currency-list
common:
- type: AgenticAccess
  url: agentic-access/fxratesapi-agentic-access.yml
- type: DomainSecurity
  url: security/fxratesapi-domain-security.yml
- type: Authentication
  url: authentication/fxratesapi-authentication.yml
- type: Website
  url: https://fxratesapi.com
- type: Documentation
  url: https://fxratesapi.com/docs
- type: Plans
  url: plans/fxratesapi-plans-pricing.yml
- type: RateLimits
  url: rate-limits/fxratesapi-rate-limits.yml
- type: FinOps
  url: finops/fxratesapi-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com