Install 402signal in Claude Code
This server doesn't publish a package to a registry, so follow the install steps in its README. Once it runs, register it with Claude Code:
claude mcp add 402signal -- <command to start the server>Frequently asked questions
What does the 402signal MCP server do?
Checks and validates live x402 payment routes across Base, Solana and Algorand.
Is the 402signal MCP server free?
Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.
Does 402signal run locally or remotely?
Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.
How do I add 402signal to Claude Code?
Follow the install steps in the project's README at https://github.com/402signalhq/402signal, then register it with "claude mcp add".
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