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02954c1a10
Add FastMCP skill to optional-skills/mcp/fastmcp/ with: - SKILL.md with workflow, design patterns, quality checklist - Templates: API wrapper, database server, file processor - Scaffold CLI script for template instantiation - FastMCP CLI reference documentation Moved to optional-skills (requires pip install fastmcp). Based on work by kshitijk4poor in PR #2096. Closes #343
110 lines
2.3 KiB
Markdown
110 lines
2.3 KiB
Markdown
# FastMCP CLI Reference
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Use this file when the task needs exact FastMCP CLI workflows rather than the higher-level guidance in `SKILL.md`.
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## Install and Verify
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```bash
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pip install fastmcp
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fastmcp version
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```
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FastMCP documents `pip install fastmcp` and `fastmcp version` as the baseline installation and verification path.
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## Run a Server
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Run a server object from a Python file:
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```bash
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fastmcp run server.py:mcp
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```
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Run the same server over HTTP:
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```bash
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fastmcp run server.py:mcp --transport http --host 127.0.0.1 --port 8000
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```
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## Inspect a Server
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Inspect what FastMCP will expose:
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```bash
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fastmcp inspect server.py:mcp
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```
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This is also the check FastMCP recommends before deploying to Prefect Horizon.
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## List and Call Tools
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List tools from a Python file:
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```bash
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fastmcp list server.py --json
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```
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List tools from an HTTP endpoint:
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```bash
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fastmcp list http://127.0.0.1:8000/mcp --json
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```
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Call a tool with key-value arguments:
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```bash
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fastmcp call server.py search_resources query=router limit=5 --json
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```
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Call a tool with a full JSON input payload:
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```bash
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fastmcp call server.py create_item '{"name": "Widget", "tags": ["sale"]}' --json
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```
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## Discover Named MCP Servers
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Find named servers already configured in local MCP-aware tools:
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```bash
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fastmcp discover
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```
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FastMCP documents name-based resolution for Claude Desktop, Claude Code, Cursor, Gemini, Goose, and `./mcp.json`.
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## Install into MCP Clients
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Register a server with common clients:
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```bash
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fastmcp install claude-code server.py
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fastmcp install claude-desktop server.py
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fastmcp install cursor server.py -e .
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```
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FastMCP notes that client installs run in isolated environments, so declare dependencies explicitly when needed with flags such as `--with`, `--env-file`, or editable installs.
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## Deployment Checks
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### Prefect Horizon
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Before pushing to Horizon:
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```bash
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fastmcp inspect server.py:mcp
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```
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FastMCP’s Horizon docs expect:
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- a GitHub repo
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- a Python file containing the FastMCP server object
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- dependencies declared in `requirements.txt` or `pyproject.toml`
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- an entrypoint like `main.py:mcp`
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### Generic HTTP Hosting
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Before shipping to any other host:
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1. Start the server locally with HTTP transport.
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2. Verify `fastmcp list` against the local `/mcp` URL.
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3. Verify at least one `fastmcp call`.
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4. Document required environment variables.
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