Show HN: An mcp server for jmap email clients

4 months ago 22

A Python-based server that bridges the Model Context Protocol (MCP) with JMAP (JSON Mail Access Protocol), enabling basic email operations through MCP clients.

I built this for personal use, but others are welcome to try it out.

Ensure you have uv and a valid API token for your JMAP server.

Clone the repo and run

uv pip install pyproject.toml

2. Add the MCP server config to your client.

{ "mcpServers": { "emails": { "env": { "JMAP_API_TOKEN": "your-api-token" }, "command": "uv", "args": [ "--directory", "/absolute/path/to/.../jmap-mcp", "uv", "run", "jmap-mcp-server" ] } } }

Errors happen. You can configure your MCP to write to a debug log to help resolve issues.

{ "mcpServers": { "emails": { "env": { "JMAP_API_TOKEN": "your-api-token", "LOG_LEVEL": "DEBUG", "LOG_FILE": "/path/to/log/jmap-mcp-debug.log" }, "command": "uv", "args": [ "--directory", "/absolute/path/to/.../jmap-mcp", "uv", "run", "jmap-mcp-server", ] } } }

The project includes tests with support for both unit tests and integration tests.

Run unit tests that use mocked responses:

# Using pytest directly pytest tests/ -m "not integration" # Using the test runner script python run_tests.py unit
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