DevHelm MCP Server

A public, stateless MCP server for demoing mcp-recorder — record, replay, and verify MCP interactions with zero setup.

Live: https://mcp.devhelm.io/mcp

Try It

mcp-recorder record  --target https://mcp.devhelm.io/mcp --output demo.json
mcp-recorder replay  --cassette demo.json
mcp-recorder verify  --cassette demo.json --target https://mcp.devhelm.io/mcp

Run Locally

uv sync
uv run python -m devhelm_mcp.server

The server starts at http://localhost:8000/mcp. Health check at http://localhost:8000/health.

Tools

| Tool | Parameters | Returns | |------|-----------|---------| | add | a: int, b: int | int — the sum | | greet | name: str, style: str = "friendly" | str — greeting (friendly / formal / pirate) | | lookup_status | service: str | dict — status for api, database, or unknown | | summarize | text: str, max_words: int = 20 | str — truncated text | | roll_dice | sides: int = 6, count: int = 1 | dict — {"rolls": [...], "total": N} |

Resources

| URI | Returns | |-----|---------| | resource://server-info | Server name, version, description | | resource://tools-guide | Markdown reference for all tools |

Deploy

docker compose up -d --build

Uses Caddy for automatic HTTPS. See docker-compose.yml and Caddyfile.