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PreFlight Web Search
x402
PreFlight Web Search is a paid API for AI agents from meryol-agenticmarket-x402.hf.space, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Searches the web for pre-trade intelligence, token due diligence, calldata red-flag data, oracle freshness, bridge security, and DeFi risk information to help autonomous agents verify before signing transactions.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pre-trade & pre-sign checks for autonomous agents: everything an agent verifies BEFORE signing a transaction — token due diligence, calldata red-flag decoding, oracle freshness, holder concentration, bridge routing with executable calldata, cross-venue perp funding, gas and price sanity checks. EVM chains: Ethereum, Base, Arbitrum, Optimism.
Output
Returns a JSON object with a list of web search results (URL, title, snippet, relevance score, and engine), along with the original query, any inline answers, and query suggestions — all sourced from multiple search engines aggregated by SearXNG.
Example use cases
Example prompt
“Before I bridge 50,000 USDC from Ethereum to Base using Stargate, search for any known exploits, security incidents, or red flags about Stargate bridge on Base mainnet — give me up to 10 results.”
Technical details
Endpoint
GEThttps://meryol-agenticmarket-x402.hf.space/searchWhen to prefer
Use this endpoint when an autonomous agent needs open-web intelligence about a token, protocol, bridge, or transaction before signing — especially for due diligence queries that benefit from recent news, forum posts, or audit reports. Prefer this over on-chain data endpoints when the information needed is narrative, historical, or community-sourced rather than structured contract data.
Side effects
- Missing required 'q' parameter returns a 400 or empty result
- Query returns zero results if topic is too niche or obscure
- Search engines may return stale cached results for rapidly evolving DeFi events
- max_results out of range (>20 or <1) may be rejected or clamped
- Payment not included or insufficient USDC results in 402 response
- Rate limits or HuggingFace Space cold-start latency may cause timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"notes": [],
"query": "base mainnet usdc bridge exploit",
"answers": [],
"results": [
{
"url": "https://...",
"score": 4.2,
"title": "...",
"engine": "duckduckgo",
"snippet": "..."
}
],
"suggestions": []
}
}Tags
x402
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