x402lint

by FastDrop

MCP MCP VERIFIED Verified 1 hour ago Registry import free

Free x402 endpoint linter: checks the unpaid 402 challenge, payTo/asset/amount, CORS, discovery.

Free x402 endpoint linter: checks the unpaid 402 challenge, payTo/asset/amount, CORS, discovery. Official MCP Registry: io.github.something-agent/x402lint@0.1.0. Remote endpoint: https://x402lint.something-agent.workers.dev/mcp

Problem it solves

Discoverable MCP server listed in the official MCP Registry.

How it's different

Remote MCP endpoint ingested from the official registry and probed by FastDrop.

Ingested from the official MCP Registry

FastDrop pulled this entry from the official MCP Registry as io.github.something-agent/x402lint and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed and the description is not theirs.

If this is your server, claim the listing to edit it and take ownership. The registry index lists everything else still awaiting a probe.

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Tools this endpoint exposes

Read directly from the endpoint on 27 Oct 2026. Not supplied by the maker.

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, EIP-712 name/version, timeouts, resour
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_endpoint, no network access. Free.