tools

dev.workers.sebastiaan-ba3.x402lint/toolsVersion 1.0.0

Lints whether a paid API's 402 response speaks the x402 protocol correctly.

Status

Responds250 msNov 14, 2026, 14:29 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:29 UTC
Latency: 250 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://x402lint.sebastiaan-ba3.workers.dev/mcpResponds250 msNov 14, 2026, 14:29 UTC

No sign-in

Claude Code

claude mcp add --transport http tools https://x402lint.sebastiaan-ba3.workers.dev/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: tools
Remote MCP server URL: https://x402lint.sebastiaan-ba3.workers.dev/mcp

Cursor

{
  "mcpServers": {
    "tools": {
      "url": "https://x402lint.sebastiaan-ba3.workers.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"tools","type":"http","url":"https://x402lint.sebastiaan-ba3.workers.dev/mcp"}'

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Tools

3 tools

Tools of tools
	Description		Read-only	Idempotent	Open world
`conform_x402_endpoint`Live adversarial test: fires malformed/garbage/fake payment proofs at a target to see if any trick it into returning 200 without a real payment. Requires payment (0.05 USDC on Base, x402) -- NOT callable for free over MCP. Calling this tool returns the exact HTTP request to make instead; it does not run the check itself. See GET /conform?url=... on this same origin.	Live adversarial test: fires malformed/garbage/fake payment proofs at a target to see if any trick it into returning 200 without a real payment. Requires payment (0.05 USDC on Base, x402) -- NOT callable for free over MCP. Calling this tool returns the exact HTTP request to make instead; it does not run the check itself. See GET /conform?url=... on this same origin.	Not declared	Not declared	Not declared	Not declared
`deep_lint_x402_endpoint`Cross-checks a target's live 402 body against its /.well-known/x402.json manifest (payTo/asset/network mismatches). Requires payment (0.01 USDC on Base, x402) -- NOT callable for free over MCP. Calling this tool returns the exact HTTP request to make instead; it does not run the check itself. See GET /deep-lint?url=... on this same origin.	Cross-checks a target's live 402 body against its /.well-known/x402.json manifest (payTo/asset/network mismatches). Requires payment (0.01 USDC on Base, x402) -- NOT callable for free over MCP. Calling this tool returns the exact HTTP request to make instead; it does not run the check itself. See GET /deep-lint?url=... on this same origin.	Not declared	Not declared	Not declared	Not declared
`lint_x402_endpoint`Fetch a URL, expect an HTTP 402 response, and validate the JSON body against the x402 protocol shape (x402Version, accepts[] fields, resource/description). Free, no account. Returns a pass/fail report with concrete errors and warnings.	Fetch a URL, expect an HTTP 402 response, and validate the JSON body against the x402 protocol shape (x402Version, accepts[] fields, resource/description). Free, no account. Returns a pass/fail report with concrete errors and warnings.	No	Yes	Not declared	Not declared

Details

Registry status: Active
Published: Oct 15, 2026
Updated: Oct 15, 2026
Website: https://doormat.sebastiaan-ba3.workers.dev/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Developer toolsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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