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MCP server: paid web_search + read_url tools, settled in USDC on Base via x402. Caller pays with its own wallet; no API key.

Transport
streamable-http
Auth
Cost

How to connect

MCP endpoint (streamable-http)
https://github.com/minhthai1995/x402-search-mcp
JSON-RPC initialize probe
curl -X POST https://github.com/minhthai1995/x402-search-mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'
Homepage
https://github.com/minhthai1995/x402-search-mcp
Listed at (manual)
https://github.com/minhthai1995/x402-search-mcp