Free Currency API

Free Currency API provides real-time and historical currency exchange rate data for 150+ currencies via a simple REST API. No registration is required for basic usage, making it ideal for hobby and development projects. The API offers daily-updated current exchange rates, historical rates dating back to 1999, and multi-currency support with official SDKs for JavaScript, Python, PHP, Go, Ruby, Rust, C#, and R.

Free Currency API publishes 3 APIs on the APIs.io network: Currencies API, Exchange Rates API, and Status API. Tagged areas include Currency, Exchange Rates, Finance, Historical Data, and Free.

The Free Currency API catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Free Currency API’s developer surface includes authentication, documentation, pricing, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.9/100 developing ▬ flat Agent 40/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumOpen⚡ Free to try

3 APIs

CurrencyExchange RatesFinanceHistorical DataFree

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 45.9/100 · developing

Contract Quality 17.0 / 25

Developer Ergonomics 3.9 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 2.7 / 13

Governance 7.0 / 12

Discoverability 7.4 / 10

Agent readiness — 40/100 · agent ready

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 7 / 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/freecurrencyapi: 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 3

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

Rate Limits 1

Documented rate limits and quota policies.

Freecurrencyapi Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

JSON Schema 4

Standalone JSON Schema definitions for this provider's data models.

Examples 4

Example request and response payloads for these APIs.

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

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: freecurrencyapi
name: Free Currency API
description: Free Currency API provides real-time and historical currency exchange rate data for 150+ currencies via a simple
  REST API. No registration is required for basic usage, making it ideal for hobby and development projects. The API offers
  daily-updated current exchange rates, historical rates dating back to 1999, and multi-currency support with official SDKs
  for JavaScript, Python, PHP, Go, Ruby, Rust, C#, and R.
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/freecurrencyapi.png
url: https://raw.githubusercontent.com/api-evangelist/freecurrencyapi/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Currency
- Exchange Rates
- Finance
- Historical Data
- Free
apis:
- aid: freecurrencyapi:freecurrencyapi-currencies-api
  name: Free Currency API Currencies API
  description: Available currency information
  humanURL: https://freecurrencyapi.com/
  baseURL: https://api.freecurrencyapi.com/v1
  tags:
  - Currencies
  properties:
  - type: OpenAPI
    url: openapi/freecurrencyapi-currencies-api-openapi.yml
  - type: Documentation
    url: https://freecurrencyapi.com/docs
- aid: freecurrencyapi:freecurrencyapi-exchange-rates-api
  name: Free Currency API Exchange Rates API
  description: Current and historical exchange rate data
  humanURL: https://freecurrencyapi.com/
  baseURL: https://api.freecurrencyapi.com/v1
  tags:
  - Exchange Rates
  properties:
  - type: OpenAPI
    url: openapi/freecurrencyapi-exchange-rates-api-openapi.yml
  - type: Documentation
    url: https://freecurrencyapi.com/docs
- aid: freecurrencyapi:freecurrencyapi-status-api
  name: Free Currency API Status API
  description: API quota and status information
  humanURL: https://freecurrencyapi.com/
  baseURL: https://api.freecurrencyapi.com/v1
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/freecurrencyapi-status-api-openapi.yml
  - type: Documentation
    url: https://freecurrencyapi.com/docs
common:
- type: AgenticAccess
  url: agentic-access/freecurrencyapi-agentic-access.yml
- type: DomainSecurity
  url: security/freecurrencyapi-domain-security.yml
- type: Authentication
  url: authentication/freecurrencyapi-authentication.yml
- type: Website
  url: https://freecurrencyapi.com/
- type: Documentation
  url: https://freecurrencyapi.com/docs
- type: GitHubOrg
  url: https://github.com/everapihq
- type: Pricing
  url: https://freecurrencyapi.com/
- type: StatusPage
  url: https://api.freecurrencyapi.com/v1/status
- type: Plans
  url: https://raw.githubusercontent.com/api-evangelist/freecurrencyapi/refs/heads/main/plans/freecurrencyapi-plans-pricing.yml
- type: RateLimits
  url: https://raw.githubusercontent.com/api-evangelist/freecurrencyapi/refs/heads/main/rate-limits/freecurrencyapi-rate-limits.yml
- type: FinOps
  url: https://raw.githubusercontent.com/api-evangelist/freecurrencyapi/refs/heads/main/finops/freecurrencyapi-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Free Currency API

Kin Score

APIs 3

Free Currency API Currencies API

Free Currency API Exchange Rates API

Free Currency API Status API

Pricing Plans 1

Freecurrencyapi Plans Pricing

Rate Limits 1

Freecurrencyapi Rate Limits

FinOps 1

Freecurrencyapi Finops

Semantic Vocabularies 1

Freecurrencyapi Context

Spectral Rules 1

Free Currency API API Rules

JSON Schema 4

CurrenciesResponse

ExchangeRatesResponse

HistoricalRatesResponse

StatusResponse

Examples 4

Get Currencies

Get Historical Rates

Get Latest Rates

Get Status

Security Posture 2

Freecurrencyapi Authentication

Freecurrencyapi Domain Security

Agentic Access 1

Freecurrencyapi Agentic Access