x402 Preflight

io.github.chico10117/x402-preflightVersion 1.0.2

Check an x402 endpoint's payment challenge and discovery metadata before paying.

Status

Responds415 msNov 14, 2026, 14:47 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:47 UTC
Latency: 415 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://x402.chikocorp.com/mcpResponds415 msNov 14, 2026, 14:47 UTC

No sign-in

Claude Code

claude mcp add --transport http x402-preflight https://x402.chikocorp.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: x402-preflight
Remote MCP server URL: https://x402.chikocorp.com/mcp

Cursor

{
  "mcpServers": {
    "x402-preflight": {
      "url": "https://x402.chikocorp.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"x402-preflight","type":"http","url":"https://x402.chikocorp.com/mcp"}'

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Tools

3 tools

Tools of x402 Preflight
	Description		Read-only	Idempotent	Open world
`audit_x402_endpoint`Technical audit for API developers launching or debugging x402. Returns deeper read-only evidence of payment configuration, schemas, redirects, CORS, cache behavior, OpenAPI, llms.txt, agent metadata, and x402 discovery consistency. Requires an explicitly authorized x402 purchase; does not test settlement, paid delivery, or actual marketplace indexing.	Technical audit for API developers launching or debugging x402. Returns deeper read-only evidence of payment configuration, schemas, redirects, CORS, cache behavior, OpenAPI, llms.txt, agent metadata, and x402 discovery consistency. Requires an explicitly authorized x402 purchase; does not test settlement, paid delivery, or actual marketplace indexing.	No	Yes	Yes	Yes
`inspect_x402_endpoint`Free endpoint check for API developers launching or debugging x402. Inspect your live payment challenge and caller-selected comparison policy without sending payment credentials. ALLOW and BLOCK are policy decisions, not launch certification; a price-limit BLOCK does not establish a broken integration. Buyer-side inspection remains available.	Free endpoint check for API developers launching or debugging x402. Inspect your live payment challenge and caller-selected comparison policy without sending payment credentials. ALLOW and BLOCK are policy decisions, not launch certification; a price-limit BLOCK does not establish a broken integration. Buyer-side inspection remains available.	No	Yes	Yes	Yes
`order_x402_remediation`Diagnostic report for API developers launching or debugging x402. An explicitly authorized x402 purchase creates a durable order for asynchronous findings, evidence, and prioritized fix recommendations in JSON/Markdown. The receipt is not the completed report. No implementation, human consultation, target payment, deployment, or guaranteed marketplace indexing.	Diagnostic report for API developers launching or debugging x402. An explicitly authorized x402 purchase creates a durable order for asynchronous findings, evidence, and prioritized fix recommendations in JSON/Markdown. The receipt is not the completed report. No implementation, human consultation, target payment, deployment, or guaranteed marketplace indexing.	No	No	No	Yes

Details

Registry status: Active
Published: Nov 5, 2026
Updated: Nov 5, 2026
Website: Not given
Repository: https://github.com/chico10117/x402-preflight-docs⁠ (opens in a new tab)
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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