# FXRatesAPI

**Canonical:** https://apis.io/providers/fxratesapi/  
**Website:** https://fxratesapi.com  
**APIs profiled:** 5

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.

## Kin Score — 23.5 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: falling (-10.0 from 33.5).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 13.3 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

## Agent readiness — 22.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | na |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | na |
| Error Semantics | no |
| OpenAPI Examples | no |
| 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 |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium · Open access — onboarding: open, pricing: freemium, trial: no (confidence: high).

## APIs (5)

- **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.

## Agentic access (1)

- **Fxratesapi Agentic Access** — 5 operations

## Security (2)

- **Fxratesapi Authentication** — apiKey/http · 2 schemes
- **Fxratesapi Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Fxratesapi Plans Pricing**

## Tags

Foreign Exchange, FX, Currency, Exchange Rates, Forex, Currency Conversion, Historical Rates, Financial Data, Cryptocurrencies

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