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x402-policy Trust Score API
x402
x402-policy Trust Score API is a paid API for AI agents from x402-api-seven.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Returns a trust score for an AI agent based on its on-chain spending history across multiple blockchain networks, used for spending policy decisions.
Price / call$0.001
Success—
StatusUnknown
How this service works
AI agent spending policy via x402 v2 micropayments on Base Mainnet.
Output
Returns a JSON object containing the agent's overall trust_score (0–1 float), per-chain scores broken out by network (e.g. base, ethereum), and the number of chains_found where the agent has activity.
Example use cases
Example prompt
“What's the x402 trust score for agent 0xabc123? I want to know how trustworthy it is across Base and Ethereum before approving its spending policy.”
Technical details
Endpoint
GEThttps://x402-api-seven.vercel.app/v1/trust-score?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically assess the on-chain reputation of an AI agent wallet before authorizing spending, enforcing a micropayment policy, or granting elevated trust. Prefer this over manual blockchain lookups when you need a normalized, multi-chain trust score in a single call within an x402-enabled payment flow.
Side effects
- Invalid or malformed agent_id returns an error or empty result
- Agent address with no on-chain history may return a zero or null trust score
- Network errors or Vercel cold-start latency may cause timeouts
- Payment failure via x402 ($0.001 USDC) results in 402 Payment Required response
- Unsupported chain IDs not reflected in per_chain breakdown
Input
Schema · Request body
{
"type": "object"
}Output
Schema · Response
{
"type": "json",
"format": null,
"example": {
"agent_id": "0xabc123",
"per_chain": {
"base": {
"score": 0.92
},
"ethereum": {
"score": 0.87
}
},
"trust_score": 0.87,
"chains_found": 4
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"