10 ms·

> I couldn’t find a great CLI tool for interactively probing an MCP server What about mcp-inspector? It’s a nice tool, can be used interactively, can be used a

• simonw 1mo ago
  The documentation for the --cli mode is a bit lacking, but I got there in the end: npx @modelcontextprotocol/inspector --cli \ https://agentic-mermaid.dev/mcp \ --method tools/call \ --tool-name render_svg \ --tool-args-json '{"source":"graph TD; A-->B","options":{"padding":24}}' Equivalent with my mcp-explorer tool: uvx mcp-explorer call \ https://agentic-mermaid.dev/mcp render_svg \ -a source 'graph TD; A-->B' \ -a options '{"padding":24}' So yeah, they're pretty similar. Then for my list command: uvx mcp-explorer list https://agentic-mermaid.dev/mcp With the inspector one you would do: npx @modelcontextprotocol/inspector --cli \ https://agentic-mermaid.dev/mcp \ --method tools/list Mine returns a human-readable list (unless you add --json), the inspector one returns a big dump of raw JSON.
• hobofan 1mo ago
  I would generally agree, but a word of caution for anyone trying it out from this thread: Try the latest pre 2.x version. The 2.0.0 that was released last week is highly broken even for some of the most common connection scenarios.
• evalstate 1mo ago
  fast-agent is very good at this (disclosure: author) you can specify --url, --npx and include --auth $TOKEN on the command line. you can also interactively connect with /connect, and pixel peep transport details https://fast-agent.ai/mcp/mcp-inspect-transport/ https://fast-agent.ai/mcp/mcp-inspect-transport/