# ExchangeRate-API

**Canonical:** https://apis.io/providers/exchangerate/  
**Website:** https://www.exchangerate-api.com  
**APIs profiled:** 3

ExchangeRate-API is a currency exchange rate REST API providing real-time and historical exchange rates for 165 currencies across 200 countries. Operating since 2010, the service delivers reliable currency conversion data via simple HTTP GET requests, supporting both URL-embedded and Bearer token authentication. It offers a free tier with 1,500 monthly requests and daily updates, plus paid plans with hourly or 5-minute update frequencies and higher quotas. The API features over 99.99% measured uptime backed by multi-AZ AWS infrastructure and Cloudflare CDN, with historical data available back to 1990.

## Kin Score — 44.7 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 44.7).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 73.9 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 56.6 |
| Access Clarity | 56.6 |

## Agent readiness — 50.0 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | na |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | na |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (3)

- **ExchangeRate-API Account API** — API quota and account information
- **ExchangeRate-API Currencies API** — Supported currency codes and metadata
- **ExchangeRate-API Exchange Rates API** — Real-time and historical currency exchange rate endpoints

## Agentic access (1)

- **Exchangerate Agentic Access** — 7 operations

## Security (2)

- **Exchangerate Authentication** — http · 1 scheme
- **Exchangerate Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Exchangerate Plans Pricing**

## Tags

Currency, Exchange Rates, Finance, Forex, Financial Data, Currency Conversion

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/exchangerate/). Scores are computed from the provider's own public artifacts under a published rubric.