dev.workers.soloearn.x402-seller-kit/x402-checker

up checked 2026-11-12T01:38:02.104Z

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Publisher-provided title

x402 endpoint checker

Publisher-provided description

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

Summary by lookupd

Fetches a paid URL without paying and grades its x402 402 challenge, including payment header, network, asset, amount and payee fields.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http x402-checker https://x402-seller-kit.soloearn.workers.dev/mcp

Codex, remote (streamable-http)

codex mcp add x402-checker --url https://x402-seller-kit.soloearn.workers.dev/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "x402-checker": {
      "url": "https://x402-seller-kit.soloearn.workers.dev/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (1 tools)

Publisher-provided text

• check_x402_endpoint Fetch a paid URL without paying and grade its x402 402 challenge: status, PAYMENT-REQUIRED header, version, network, USDC asset, amount units, payTo checksum, E

Details

• Version: 1.0.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 245 ms
• First indexed: 2026-11-01T09:02:05.829Z
• Last seen in registry: 2026-11-01T09:02:05.829Z
• Website: https://x402-seller-kit.soloearn.workers.dev/tools/x402-checker

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• 62930 servers
• Last crawl: 2026-11-13T00:17:28.001Z
• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp