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Agent Ready – Discovery Files Checker
x402
Agent Ready – Discovery Files Checker is a paid API for AI agents from agent-ready.x402tookit.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-11-02).
Checks which AI-agent discovery files (openapi.json, .well-known/x402, agent-card.json, mcp.json, ai-plugin.json) a given website publishes.
Price / call$0.03
Success—
StatusUnknown
How this service works
Which discovery files does a site publish? Checks openapi.json, .well-known/x402, agent-card.json, mcp.json and ai-plugin.json.
Output
Returns a structured object with per-file presence flags (openapi, x402Manifest with validity and entry count, agentCard, mcpCard, aiPlugin), a list of found file names, a summary string, a verdict, the checked origin, timestamp, and any problems or reasons found during probing.
Example use cases
Vetting a new API for agent integration
“Before I integrate with https://api.acme-corp.com, can you check what agent discovery files they publish — openapi, x402 manifest, MCP card, anything like that?”
Auditing your own site's agent readiness
“Can you check if my site https://myproduct.io is publishing all the standard AI agent discovery files like openapi.json, agent-card.json, and ai-plugin.json?”
Comparing discovery coverage across multiple partners
“I need to know which agent discovery files https://partnersite.example.com exposes — specifically whether they have an x402 manifest and an MCP card published.”
Technical details
Endpoint
GEThttps://agent-ready.x402tookit.com/discovery-files?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to quickly determine which standard AI-agent discovery formats a site supports (OpenAPI, x402, MCP, agent card, ai-plugin), especially before attempting programmatic integration or when auditing a site's agentic infrastructure readiness. It is more targeted than a full agent-readiness score endpoint — use it when you specifically want file-level presence data rather than a holistic score.
Side effects
- Target site is unreachable or returns non-200 responses — discovery files marked absent
- Site uses non-standard paths that differ from checked filenames — files may exist but not be detected
- Rate limiting or bot-blocking by target site — may return degraded result
- Invalid or non-HTTPS URL provided — request rejected by schema validation
- x402 manifest present but invalid — valid flag false with problems listed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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