Inspector — try the MCP servers in your browser

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Inspector

Query the servers straight from your browser. Pick one, call a method and read the raw JSON-RPC response.

~/mcp — libgen

Endpoint

No tools loaded yet. Load them to see what this server can do.

Pick a tool to see what it takes.

Nothing sent yet.

No JavaScript? Call a server directly

The inspector above needs JavaScript to talk to the servers. Without it, the same conversation fits in one command: this asks libgen — the server that requires no headers — for its catalogue of tools.

Request

                curl -sS https://mcp.jmrp.io/libgen \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

The server answers with a JSON-RPC result whose tools array holds every tool it exposes, each with its name, its description and the JSON Schema of the arguments it accepts.

The same tools and prompts are written out in prose, no request needed, on the libgen server page.

Before pasting a credential, read the notice on that server's card: it says exactly where the value goes and what the browser itself prevents. Read the gitlab notice

This page was last updated on 2 September 2026