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x402 endpoint checker

https://x402-seller-kit.soloearn.workers.dev/mcp

● healthy

Test any x402 paid URL without paying: 402, PAYMENT-REQUIRED, USDC, amounts, payTo, EIP-712, CORS.

Transport

streamable-http

Auth

—

Cost

—

Protocol revision

2025-06-18

negotiated, not declared

Listed in

Directories this entry was found in.

mcp-registry wellknown ↗

How to connect

MCP endpoint (streamable-http)

https://x402-seller-kit.soloearn.workers.dev/mcp

JSON-RPC initialize probe

curl -X POST https://x402-seller-kit.soloearn.workers.dev/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'

Homepage

https://x402-seller-kit.soloearn.workers.dev/tools/x402-checker