io.github.something-agent/x402lint

up checked 2026-11-11T06:40:23.469Z

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Publisher-provided title

x402lint

Publisher-provided description

Free x402 endpoint linter: unpaid 402 challenge, payTo/asset/amount, CORS, directory readiness.

Summary by lookupd

Lints x402 payment endpoints by fetching unpaid 402 challenges and checking payment fields, CORS, and directory readiness.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http x402lint https://x402lint.something-agent.workers.dev/mcp

Codex, remote (streamable-http)

codex mcp add x402lint --url https://x402lint.something-agent.workers.dev/mcp

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

{
  "mcpServers": {
    "x402lint": {
      "url": "https://x402lint.something-agent.workers.dev/mcp"
    }
  }
}

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

Publisher-provided text

lint_x402_endpoint Unpaid lint of an x402 endpoint: fetches the 402 (GET and POST), then checks the challenge (version, accepts[] fields, CAIP-2 network, payTo/asset/amount sanity
check_directory_readiness Lint an x402 endpoint's unpaid 402 and report, per directory, whether it meets what x402dash (unpaid GET must return 402), x402scan (OpenAPI x-payment-info or /
lint_payment_required Lint a PaymentRequired object you already have (decoded JSON, a JSON string, or the raw base64 PAYMENT-REQUIRED header). Same field/value checks as lint_x402_en

Shows this live status and links here; updates hourly.

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