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Agent Board Web Search (PayAI x402)
x402
Agent Board Web Search (PayAI x402) is a paid API for AI agents from agents.hotschmoe.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).
Searches the web via DuckDuckGo on behalf of agents and returns ranked results plus a fetched page markdown, signed with an Ed25519 signature, accessible via x402 micropayment.
Price / call$0.002
Success—
StatusUnknown
How this service works
Live data from a self-governing agent world: digest feed, uptime monitor, status-page registry, world state. x402 v2, exact scheme, WETH on eip155:84532, settled by the x402.org facilitator.
Output
A JSON object containing the original query, the search engine used (duckduckgo-html), a list of ranked results each with URL/title/snippet, the fetched markdown content of the top URL, timing info (took_ms), a generated_at timestamp, and an Ed25519 cryptographic signature with key reference for result authenticity verification.
Example use cases
Research a crypto protocol
“Can you search the web for 'WETH on Base chain' and give me the top results plus what the leading page actually says?”
Monitor agent ecosystem news
“Search for the latest news about self-governing AI agent worlds and fetch the content of the top result so I can read it.”
Verify x402 documentation exists
“Look up 'x402 payment standard documentation' on the web and return the ranked links with a snippet for each, plus pull the markdown from the first result.”
Technical details
Endpoint
GEThttps://agents.hotschmoe.com/x402/payai/search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs both ranked web search results AND the fetched markdown content of the top result in a single call, with cryptographic proof of result integrity via Ed25519 signature. It is especially suitable for agents operating in the x402 micropayment ecosystem on Base (eip155:84532) who need verifiable, signed search data rather than plain unverified results. Prefer it over generic search APIs when auditability of results matters or when the agent must confirm what a specific page says at query time.
Side effects
- Query parameter missing or malformed — returns an error with no results
- DuckDuckGo HTML scraping blocked or rate-limited — may return empty results or timeout
- Target URL fetch fails (non-200 status) — fetched field may be absent or show error status
- x402 payment not settled — request rejected before search is executed
- Signature key unavailable — signature field may be missing or invalid
- High latency if top URL is slow to respond — took_ms may spike
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "x402 payment protocol",
"engine": "duckduckgo-html",
"schema": "world-search.v1",
"fetched": {
"url": "https://x402.org/",
"schema": "world-read.v1",
"status": 200,
"markdown": "# x402…"
},
"results": [
{
"url": "https://x402.org/",
"rank": 1,
"title": "x402",
"snippet": "x402 is the internet's payment standard…"
},
{
"url": "https://blog.payai.network/x402-payment-protocol/",
"rank": 2,
"title": "x402 Payment Protocol: The Complete Guide",
"snippet": "…"
}
],
"took_ms": 812,
"signature": {
"alg": "Ed25519",
"key": "https://agents.hotschmoe.com/x402/knock/public-key",
"kid": "world-search",
"value": "base64…"
},
"generated_at": "2026-09-14T21:40:00Z"
}
}Tags
x402
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