A guard-first MCP server for the EODHD market-data API: it catches silent failures, says what each price is, and counts what every call costs.
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# eodhd-guard-mcp <!-- mcp-name: io.github.techfreakworm/eodhd-guard-mcp --> A guard-first [MCP](https://modelcontextprotocol.io) server for the [EODHD](https://eodhd.com) market-data API: it catches silent failures, says what each price is, and counts what every call costs. [](https://github.com/techfreakworm/eodhd-guard-mcp/actions/workflows/ci.yml) [](https://github.com/techfreakworm/eodhd-guard-mcp/blob/main/LICENSE) [](https://www.python.org/downloads/) **Status: alpha (0.2.x).** Tool names, parameters and output fields can still change before 1.0. **Unofficial.** This project is not affiliated with or endorsed by EODHD or Unicorn Data Services. You need your own EODHD subscription, and EODHD's data licence applies to everything you fetch. See the [data licence notice](#data-licence-notice). ## Why EODHD is a broad, inexpensive market-data API. An evaluation in October 2026 (about 930 calls) found its data sound for the US, London and Swiss markets, and good as a cross-check for India. It also found failures that an AI assistant cannot see, because the API reports them as success: - **Frozen codes.** A delisted or renamed code keeps answering HTTP 200 with frozen data. Roche's Swiss line changed from `ROG.SW` to `ROP.SW` in March 2026, and the old code kept answering. - **Empty and placeholder answers.** A real-time quote for an unknown code is HTTP 200 with every field set to `"NA"`. Tokyo and the UAE have no prices and answer with `[]` or a bare 404. - **Ignored parameters.** A bad `from` date is ignored and the whole history comes back. An unknown `period` falls back to daily. A symbol without an exchange suffix silently means the US. - **Prices that are not what they look like.** `close` is not adjusted for splits or dividends,…
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