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Claude Code Agent402.Tools: pay-per-call web tools server.describe

How to: Claude Code Agent402.Tools: pay-per-call web tools server.describe

client:Claude Code transport:streamable-http tool:server.describe

Add Agent402.Tools: pay-per-call web tools to Claude Code

  1. 01

    Run this in your project directory.

claude mcp add --transport http agent402 https://agent402.tools/mcp
  1. 02

    Restart your session so the server is picked up.

  2. 03

    Ask for something server.describe does. Claude Code lists the server's tools on connect and calls server.describe itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Agent402.Tools: pay-per-call web tools's identifier in your config matches the one above exactly.

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

Set these first

Agent402.Tools: pay-per-call web tools will not start until these are set, so server.describe never becomes available.

  • AGENT_KEY
  • AGENT402_BUDGET
  • AGENT402_MAX_PER_CALL
  • AGENT402_CREDITS_KEY
  • SOLANA_AGENT_KEY
  • AGENT402_NETWORKS

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.