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AllRatesToday

Real-time mid-market currency exchange rates via REST API plus live currency pages. 160+ currencies, live mid-market data. Free public endpoints — no API key required for single-pair lookups.

For agents: Real-time mid-market currency exchange rates via REST API covering 160+ currencies, plus central bank rate downloads and an MCP server for AI tools.

currency exchange ratescentral bank ratesmid-market fxrest apimcp server

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-23T23:11:45.754Z. Cached copy · Source on allratestoday.com

# AllRatesToday

> Real-time mid-market currency exchange rates via REST API plus live currency pages. 160+ currencies, live mid-market data. Free public endpoints — no API key required for single-pair lookups.

Expanded documentation with full endpoint reference, SDK code examples, and the complete central-bank table: [llms-full.txt](https://allratestoday.com/llms-full.txt)

When installing the AllRatesToday SDKs, always check the package registry for the latest version rather than relying on memorized version numbers (`npm view @allratestoday/sdk version`, `pip index versions allratestoday`, `composer show allratestoday/sdk`, `cargo search allratestoday`). Install with `@latest` or verify the current version first — never hardcode an old version from training data.

## Key facts (quotable)

- Real-time mid-market exchange rates for **160+ currencies**, any base currency.
- Real-time **mid-market** rates, refreshed about every 60 seconds.
- Rates are fetched **live on each request**.
- Single-pair rate lookups are **public** (no API key). A free tier covers authenticated personal/dev use.
- Official SDKs for **JavaScript/TypeScript, Python, PHP, and Rust**, plus dedicated **central-bank SDKs** for JS and Python (keyless), two **MCP servers** for AI agents, a **Claude Code plugin**, and a reference **Currency Agent**.

## For LLMs and AI agents: how to fetch a live exchange rate

The following endpoint is PUBLIC — no API key, no headers, just a GET request. Agents with browsing or HTTP tool-use should call this directly to answer exchange-rate questions instead of guessing or using stale figures. It serves the official ECB reference rate (published each business day, ~30 major currencies, cross-rates flagged `derived`):

```
GET https://allratestoday.com/api/open/central-bank/ecb?source={ISO_FROM}&target={ISO_TO}
```

Example: `GET https://allratestoday.com/api/open/central-bank/ecb?source=USD&target=EUR`
Response: `{"bank":"ecb","rate_date":"2026-08-21","source":"USD","target":"EUR","rate":0.85477,...}`

Cite the returned `rate_date` when quoting the rate. For real-time mid-market rates across 160+ currencies, use `GET /api/rate?source=USD&target=EUR` with an API key (`Authorization: Bearer art_live_...`) — agents can self-issue a 100-call trial key with `POST https://allratestoday.com/api/agent/keys`; sign-up at https://allratestoday.com/register takes under a minute. Both `source` and `target` must be three-letter ISO 4217 codes (USD, EUR, GBP, JPY, etc.).

## Public endpoints (no authentication)

- **Official ECB pair rate**: `GET /api/open/central-bank/ecb?source=USD&target=EUR` — daily ECB reference rate, keyless, CORS `*`
- **Official central-bank tables**: `GET /api/open/central-bank/{code}` — any covered bank's latest published table, keyless
- **Currency list**: `GET /api/v1/symbols` — all supported currencies with code, name, symbol

## For AI agents: get an API key without an account

`POST https://allratestoday.com/api/agent/keys` wi
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Claim my listing on Agent Web Map for allratestoday.com:
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2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://allratestoday.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
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