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world-discovery-payai
x402
world-discovery-payai is a free API for AI agents from agents.hotschmoe.com, callable via x402, Free, status unknown (last checked 2026-10-10).
Returns a free catalog listing all 15 paid x402 data products and LLM inference endpoints available on agents.hotschmoe.com, including pricing, paths, and descriptions.
Price / callFree
Success—
StatusUnknown
How this service works
Free catalog of all 15 paid x402 data products + LLM inference on agents.hotschmoe.com: crypto prices & world data (digest), uptime monitoring (sentinel), status pages (pingspot), agent-world state & notary ledger (world), content attestation (attest), x402 readiness audit (audit), dated liveness receipts (knock), continuous monitoring with signed push alerts (watch), bazaar listing health (bazaar), live x402 directory (live), batch liveness fleet audits (fleet), x402 market pulse (pulse), batch conformance audits (doctor-fleet), URL-to-markdown reader with signed records (read), web search for agents with optional top-result-as-markdown (search), OpenAI-compatible LLM inference (chat/completions). FREE embeddable x402 conformance badge for any merchant: /x402/doctor/badge/<host> (signed 0-100 score + report page, paste into any README). $0.0001-0.01 USDC per call (Base or Solana mainnet); no account, no API key; x402 v2 pay-per-call.
Output
A JSON service catalog listing all 15+ paid x402 endpoints on agents.hotschmoe.com, each with its name, URL path, payai discovery URL, price in USD (ranging from $0.0001 to $0.01 per call), and a short description of what it does. Also includes the origin host and overall service metadata.
Example use cases
Discover available x402 data APIs
“What x402 data services can I use on agents.hotschmoe.com? I want to see all available products, their prices in USDC, and the paths I need to call them.”
Find cheapest x402 endpoint for crypto prices
“I want to get live crypto prices using x402 micropayments — can you pull up the service catalog for agents.hotschmoe.com so I know which endpoint to call and how much it costs?”
Explore agent-ready LLM and monitoring tools
“List all the paid services on agents.hotschmoe.com including the LLM inference and uptime monitoring options — I want to pick the right one for my agent workflow and understand the per-call costs.”
Technical details
Endpoint
GEThttps://agents.hotschmoe.com/x402/payai/discovery?utm_source=zero.xyzWhen to prefer
Use this endpoint first when an agent needs to discover what x402 services are available on agents.hotschmoe.com before deciding which specific data product or LLM endpoint to call. It is free, requires no authentication, and gives a complete picture of available capabilities and pricing. Prefer this over hardcoding endpoint paths when building dynamic agent workflows that need to select the right tool at runtime.
Side effects
- Service temporarily unavailable (5xx) if host is down
- Malformed or incomplete catalog if new services have been added but not yet indexed
- Empty or truncated response if the catalog endpoint encounters an internal error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "agents.hotschmoe.com x402 service catalog",
"origin": "https://agents.hotschmoe.com",
"services": [
{
"name": "world-digest",
"path": "/digest",
"payai_url": "/x402/payai/digest",
"price_usd": "0.0001",
"description": "Live world data feed: crypto prices, FX, weather, HN top 10, GitHub trending"
},
{
"name": "world-sentinel",
"path": "/sentinel",
"payai_url": "/x402/payai/sentinel",
"price_usd": "0.0001",
"description": "Uptime monitoring: 3-state verdicts + 24h/48h uptime for the world's hosts"
},
{
"name": "world-pingspot",
"path": "/pingspot",
"payai_url": "/x402/payai/pingspot",
"price_usd": "0.0001",
"description": "Status page data API: per-site uptime JSON, sparklines, integrity hashes"
},
{
"name": "world-state",
"path": "/world",
"payai_url": "/x402/payai/world",
"price_usd": "0.0001",
"description": "Agent-world state: service health, tamper-evident notary ledger, board metadata"
},
{
"name": "world-attest",
"path": "/attest",
"payai_url": "/x402/payai/attest",
"price_usd": "0.01",
"description": "Content attestation for any public URL: signed, hash-chained, verifiable"
},
{
"name": "world-audit",
"path": "/audit",
"payai_url": "/x402/payai/audit",
"price_usd": "0.001",
"description": "x402 readiness audit: 0-100 payability + discoverability score with fixes"
},
{
"name": "world-knock",
"path": "/knock",
"payai_url": "/x402/payai/knock",
"price_usd": "0.001",
"description": "Dated liveness receipt for any public URL: signed, timestamped, 3-state verdict"
},
{
"name": "world-bazaar",
"path": "/bazaar",
"payai_url": "/x402/payai/bazaar",
"price_usd": "0.001",
"description": "Bazaar listing health report: catalog position, liveness history, ranked fixes"
},
{
"name": "world-live",
"path": "/live",
"payai_url": "/x402/payai/live",
"price_usd": "0.001",
"description": "Searchable index of x402 resources that actually work (live + signed receipts)"
},
{
"name": "world-fleet",
"path": "/fleet",
"payai_url": "/x402/payai/fleet",
"price_usd": "0.005",
"description": "Batch liveness audit: up to 25 URLs in one call, 5x cheaper than 25 knocks"
},
{
"name": "world-infer",
"path": "/v1/chat/completions",
"payai_url": "/x402/payai/chat/completions",
"price_usd": "0.005",
"description": "OpenAI-compatible chat completions (hotschmoe-dd), pay-per-request"
}
],
"generated": "2026-09-14T07:30:00Z"
}
}Tags
x402
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