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AgentDiet Fact-Check Search
x402
AgentDiet Fact-Check Search is a paid API for AI agents from status.agentdiet.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Searches and fact-checks a query, returning verified information with context compression and an ROI proof of compression ratio
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://status.agentdiet.dev settling in USDC on Base.
Output
Returns a JSON object with a 'data' field containing the fact-check/search result, a 'status' field (e.g. 'ok'), and a 'roi_proof' object including a 'compression_ratio_pct' value (e.g. 91.4) indicating how much the context was compressed relative to raw source material.
Example use cases
Verify a viral claim before sharing
“I just saw a post claiming that humans only use 10% of their brains — can you fact-check that for me and tell me if it's true or false?”
Research validation for a report
“Before I publish this article, can you search and fact-check the claim that electric vehicles produce zero emissions over their lifetime?”
AI agent grounding on current facts
“Fact-check whether the James Webb Space Telescope launched in 2021 — I need a verified answer with as little extra text as possible to save on tokens.”
Technical details
Endpoint
GEThttps://status.agentdiet.dev/v1/fact-check-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need token-efficient, fact-verified search results for an AI agent workflow — especially when context window size matters and you want a compression ratio proof. Prefer it over generic search APIs when you need both information retrieval and claim verification in a single call, or when operating in a B2A/A2A pipeline paying per-call in USDC via x402.
Side effects
- Missing or empty 'query' parameter returns incomplete or empty results
- Invalid HTTP method (anything other than GET or POST) may return a schema validation error
- Network or payment failure (x402 USDC payment not settled) results in a 402 Payment Required response
- Upstream search or fact-check data source unavailable causes service errors
- Malformed input object (missing required 'type' or 'method' fields) returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {},
"status": "ok",
"roi_proof": {
"compression_ratio_pct": 91.4
}
}
}Tags
x402
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