dev.exchangerate/mcp
exchangerate.dev
Free, source-labeled FX rates: 10,296 pairs across 144 currencies, all update ~60s intraday.
alive probed 2026-10-09 · HTTP 200
7tools
1.5ktokens in Claude Opus 5.5
1.5ktokens in Claude Code
0.7 %of a 200k context window
815o200k_base estimate
753 msto initialize
64 msto list tools
- Endpoint
- https://api.exchangerate.dev/v1/mcp/ (streamable-http)
- Host
- api.exchangerate.dev
- Protocol
- 2025-11-25
- Reports itself as
- exchangerate-dev 3.4.2
- Capabilities
- experimental, extensions, logging, prompts, resources, tools
- Instructions
- 610 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-09. Counted again when the tool definitions change. Method.
- Website
- https://exchangerate.dev
- Registry
- active, updated 2026-10-08 · registry entry
- Reachable
- 8 of the last 8 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| get_rate | 176 | 22 % |
| get_range | 150 | 18 % |
| convert | 118 | 14 % |
| get_usd_index | 115 | 14 % |
| start_checkout | 103 | 13 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-09 11:13 | alive | 2.2 s | 7 | 1.5k | 815 |
| 2026-10-08 11:08 | alive | 1.7 s | 7 | 1.5k | 818 |
| 2026-10-05 13:57 | alive | 753 ms | 7 | 1.5k | 826 |
| 2026-10-05 00:24 | alive | 193 ms | 7 | 826 | |
| 2026-10-04 10:00 | alive | 734 ms | 7 | 826 | |
| 2026-10-04 07:53 | alive | 970 ms | 7 | 826 | |
| 2026-10-03 20:33 | alive | 2.0 s | 7 | 826 | |
| 2026-10-03 17:50 | alive | 597 ms | 7 | 826 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.exchangerate/mcp)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.