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mcp/harbor
Verified official

x402 Wallet MCP

v0.2.2

io.github.nirholas/x402-mcp

Self-custodial x402 wallet for AI agents: pay any service in USDC or $THREE from your own key.

transport:stdio runtime:npm
View source Website

Target client

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add x402-mcp -e SOLANA_SECRET_KEY=<SOLANA_SECRET_KEY> -e SOLANA_RPC_URL=<SOLANA_RPC_URL> -e MAX_PAY_USD=<MAX_PAY_USD> -e REQUIRE_CONFIRM=<REQUIRE_CONFIRM> -e THREE_WS_BASE=<THREE_WS_BASE> -- npx -y @three-ws/x402-mcp

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

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.