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Claude Code

HTTP 431 header-fields-too-large for Claude Code

io.github.sadri-dridi/http-431

Meaning of HTTP 431.

client:Claude Code transport:streamable-http tools:31

Install HTTP 431 header-fields-too-large in Claude Code

run in your project directory

claude mcp add --transport http http-431 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-431/mcp

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

What Claude Code can do once it is connected

All 31 tools →

HTTP 431 header-fields-too-large in other clients