# exchangerate.dev

> Free, source-labeled FX rates: 10,296 pairs across 144 currencies, all update ~60s intraday.

- name: dev.exchangerate/mcp
- version: 1.0.5
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 73/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.exchangerate%2Fmcp
- tools: https://api.protogrid.dev/v1/servers/dev.exchangerate%2Fmcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "exchangerate": {
      "type": "http",
      "url": "https://api.exchangerate.dev/v1/mcp/"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 97
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-92% +updated-12d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 73/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: start_checkout (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_official_rate (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); search_docs (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 1,131 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 9 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 9, about 1,131 tokens to load them all
- tool set hash: 839f5ff846615c09b0470c652a388ee9
- tools last changed: 2026-10-15T15:19:55.755Z
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.exchangerate/mcp.svg)](https://protogrid.dev/servers/dev.exchangerate/mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-15 `get_official_rate` added
  - Get the exchange rate a government authority published for a date (tax, customs, central bank), with the period it is valid for. These are the published values, not market rates. Every plan gets the rate valid today; a past date needs a paid plan. Pairs the authority does not publish are refused.
- 2026-10-15 `list_official_rate_tables` added
  - List the countries and rate types with government-published exchange rates (for example IDN tax, GBR customs, USA government-reporting). Country codes are ISO 3166-1 alpha-3; use them with get_official_rate.
- 2026-10-15 `get_rate` changed (description)
  - before: Get the current — or historical, with date — exchange rate from one currency to another. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live feed is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | market_daily) — rates fall back to official daily reference data during market closures or data-source unavailability. market_session on every response indicates open, weekend, or interbank_closed.
  - after: Get the current (or, with date, historical) exchange rate from one currency to another. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live feed is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | market_daily); rates fall back to official daily reference data during market closures or data-source unavailability. market_session on every response indicates open, weekend, or interbank_closed.
- 2026-10-15 `get_usd_index` changed (description)
  - before: Get the latest independently calculated USD index. dxy-reconstructed uses the published six-currency basket formula but is not official or licensed ICE data. usd-strength is the versioned exchangerate.dev equal-weight 13-currency index, with 2026-01-02 = 100. Both require a complete, time-aligned basket.
  - after: Get the latest independently calculated USD index. dxy-reconstructed uses the published six-currency basket formula but is not the official index. usd-strength is the versioned exchangerate.dev equal-weight 13-currency index, with 2026-01-02 = 100. Both require a complete, time-aligned basket.
- 2026-10-08 `get_range` changed (description)
  - before: Get a daily time-series of exchange rates over a date range (business days). Capped at 366 rows per call; when has_more is true, pass next_cursor as the cursor parameter to fetch the next page. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading.
  - after: Get a daily time-series of exchange rates over a date range (business days). Capped at 366 rows per call; when has_more is true, pass next_cursor as the cursor parameter to fetch the next page. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading.
- 2026-10-08 `convert` changed (description)
  - before: Convert an amount from one currency to another at the current rate. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading.
  - after: Convert an amount from one currency to another at the current rate. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading.
- 2026-10-08 `get_rate` changed (description)
  - before: Get the current — or historical, with date — exchange rate from one currency to another. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live feed is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | market_daily) — rates fall back to official daily reference data during market closures or data-source unavailability. market_session on every response indicates open, weekend, or interbank_closed.
  - after: Get the current — or historical, with date — exchange rate from one currency to another. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live feed is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | market_daily) — rates fall back to official daily reference data during market closures or data-source unavailability. market_session on every response indicates open, weekend, or interbank_closed.
- 2026-10-08 `get_rate` changed (description)
  - before: Get the current — or historical, with date — exchange rate from one currency to another. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live overlay is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | fred_daily | nbp_daily) — rates fall back to official daily reference data during market closures, data-source unavailability, or low liquidity. market_session on every response indicates open, weekend, or interbank_closed.
  - after: Get the current — or historical, with date — exchange rate from one currency to another. Indicative developer-grade reference rates (aggregated market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live feed is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | market_daily) — rates fall back to official daily reference data during market closures or data-source unavailability. market_session on every response indicates open, weekend, or interbank_closed.
- 2026-09-30 `start_checkout` changed (description, inputSchema)
  - before: Open a billing URL for an explicitly selected eligible plan. After human confirmation, a Free account without a subscription receives a one-hour Stripe Checkout URL; an existing Basic subscriber receives Stripe billing management instead. Cancellation creates nothing and account identifiers are never accepted from the model.
  - after: Open a billing URL for an explicitly selected eligible plan. After human confirmation, a Free account without a subscription receives a one-hour Stripe Checkout URL; an existing subscriber receives Stripe billing management instead. Plans not offered to the account are refused. Cancellation creates nothing and account identifiers are never accepted from the model.

Full history: https://api.protogrid.dev/v1/servers/dev.exchangerate%2Fmcp/changes

## Remotes

- https://api.exchangerate.dev/v1/mcp/ (streamable-http, auth none, reachable true, uptime30d 0.91818184)

## Packages

_none_

## Tools (9)

- `convert`: Convert an amount from one currency to another at the current rate. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading.
- `get_official_rate`: Get the exchange rate a government authority published for a date (tax, customs, central bank), with the period it is valid for. These are the published values, not market rates. Every plan gets the rate valid today; a past date needs a paid plan. Pairs the authority does not publish are refused.
- `get_range`: Get a daily time-series of exchange rates over a date range (business days). Capped at 366 rows per call; when has_more is true, pass next_cursor as the cursor parameter to fetch the next page. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading.
- `get_rate`: Get the current (or, with date, historical) exchange rate from one currency to another. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live feed is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | market_daily); rates fall back to official daily reference data during market closures or data-source unavailability. market_session on every response indicates open, weekend, or interbank_closed.
- `get_usd_index`: Get the latest independently calculated USD index. dxy-reconstructed uses the published six-currency basket formula but is not the official index. usd-strength is the versioned exchangerate.dev equal-weight 13-currency index, with 2026-01-02 = 100. Both require a complete, time-aligned basket.
- `list_currencies`: List all supported currencies with name, decimal precision, minor units, and whether the pair is derived (triangulated). Use this before other tools to discover valid currency codes.
- `list_official_rate_tables`: List the countries and rate types with government-published exchange rates (for example IDN tax, GBR customs, USA government-reporting). Country codes are ISO 3166-1 alpha-3; use them with get_official_rate.
- `search_docs`: Search the exchangerate.dev FAQ corpus via BM25. Returns the top-K matching questions and answers with relevance scores. Use before answering how-to / pricing / data-sourcing questions so you cite the canonical text instead of guessing from training data.
- `start_checkout`: Open a billing URL for an explicitly selected eligible plan. After human confirmation, a Free account without a subscription receives a one-hour Stripe Checkout URL; an existing subscriber receives Stripe billing management instead. Plans not offered to the account are refused. Cancellation creates nothing and account identifiers are never accepted from the model.