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LION Web Search JSON (x402, Ed25519-attested)
x402
LION Web Search JSON (x402, Ed25519-attested) is a paid API for AI agents from lionx402.com, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-15).
Performs a web search and returns attested JSON results, with each paid response carrying an offline-verifiable Ed25519 attestation — no API key required, pay-per-call via x402 on Base.
Price / call$0.025
Success—
StatusUnknown
How this service works
Keyless attested web search (?q=) for agent grounding. $0.025 Base USDC — agent-search band. Ed25519-attested result set.
Output
A JSON object containing web search results (up to 20 items) plus an `attestation` block with Ed25519 signature, signer public key, payload SHA-256, and algorithm — verifiable offline against /.well-known/lion-compliance-key.json. Costs $0.01 USDC per call via x402.
Example use cases
Example prompt
“Search the web for 'Base Layer 2 ecosystem latest news' and give me up to 10 results — I need the response to be cryptographically attested so I can verify it offline.”
Technical details
Endpoint
GEThttps://lionx402.com/api/x402/web-search-jsonWhen to prefer
Choose this endpoint when an AI agent needs web search results that come with a portable, offline-verifiable cryptographic attestation (Ed25519), operates without any API key or account setup, and is willing to pay $0.01 USDC per call via the x402 protocol on Base. Prefer over standard search APIs when provability of results matters, or when building keyless agent workflows on Base/USDC rails.
Side effects
- Payment not included or insufficient USDC — HTTP 402 returned requiring x402 payment header
- Missing required `q` parameter — returns validation error
- Query too broad or unsupported — may return empty results array
- Network timeout or upstream search failure — 5xx error
- Invalid `num` value above 20 — capped or rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"service": "LION Verified Company",
"asset_id": "LION",
"resolved": true
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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