x402 Preflight — public documentation

Documentation only. This repository holds the public, citable material for x402 Preflight, a read-only launch-diagnostics service for x402 endpoints (https://x402.chikocorp.com).

The service code is private; nothing in this repository is required to run it, and no payment logic, credentials or infrastructure configuration belongs here.

What the service does

It reads the live 402 challenge your endpoint serves and compares it with what the endpoint advertises — price, network, asset, receiver, scheme — plus discovery metadata, input schemas, CORS, redirects and cache behaviour, and returns findings with evidence. It never connects a wallet, signs nothing, and makes no purchase on the target.

Free check (no account, no wallet)

curl -s -X POST https://x402.chikocorp.com/api/preflight/inspect \
  -H 'content-type: application/json' \
  -d '{"resource_url":"https://your-api.example.com/resource","method":"GET"}'

Machine-readable manifests

Everything a registry, directory or agent needs to index this server without filling a form:

file	for
server.json	official MCP registry manifest (streamable HTTP remote)
glama.json	Glama maintainer claim
SKILL.md	agent skill: tools, inputs, prices and boundaries
gemini-extension.json	Gemini CLI extension pointing at https://x402.chikocorp.com/mcp

Live equivalents served by the service: /llms.txt, /mcp and /.well-known/x402.json.

Contents

• docs/ — short answers: what x402 is, how to add it, and how to tell whether an endpoint really charges.
• guides/x402scan-discovery.md — discovery requirements for catalogue listings (OpenAPI as the canonical contract).
• guides/bazaar-listing-verification.md — how a Bazaar listing is verified and what the catalogue evidence says.
• reference/ — mirrors of the live public artifacts (llms.txt, openapi.json).

Canonical source

The rendered pages live at https://x402.chikocorp.com/docs/. If this repository and the site disagree, the live service wins — the runtime 402 is the authoritative contract.

Contributing

Corrections and additions are welcome: see CONTRIBUTING.md. Keep claims verifiable — a finding without a reproducible command is not documentation.

Contact

admin@chikocorp.com