Fermat for Claude Code

xyz.phase.ai/gateway

OpenAI-compatible LLM gateway: pay per request with an API key, signed receipt for each call.

client:Claude Code transport:streamable-http tools:7

Install Fermat in Claude Code

run in your project directory

claude mcp add --transport http gateway https://mcp.fermat.ai.phase.xyz/mcp

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