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CONNSKILL Trust Check — x402 Service Reputation Lookup
x402
CONNSKILL Trust Check — x402 Service Reputation Lookup is a paid API for AI agents from agent.connskill.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-16).
Checks the on-chain payment reputation and liveness of an x402-compatible API endpoint, returning a trust verdict for AI agents before they pay.
Price / call$0.05
Success—
StatusUnknown
How this service works
Market data and real-world actions for AI agents: keyword and SERP research by location, SMS verification, receive-only inboxes, social marketing, EU-hosted LLMs. Paid per call in USDC on Base. No account, no API key, no minimum.
Output
Returns a JSON object with a top-level verdict ('green', 'yellow', or 'red'), on-chain chain stats (number of unique payers, total USDC inflow, window in days, self-dealing share, self-dealing payer count), probe results (payTo address, HTTP latency in ms, EIP-155 network, x402_valid boolean, x402 version), the origin URL, and a status field.
Example use cases
Pre-payment due diligence on unknown API
“I'm about to use an x402 service at agent.somestartup.io — can you run a trust check on it first and tell me if it has a green verdict and how many real payers it's had in the last two weeks?”
Detect self-dealing in x402 payment history
“Check the on-chain reputation of agent.serpdata.com for me — I specifically want to know the self-dealing share, because I'm worried the operator is paying themselves to fake legitimacy.”
Verify x402 endpoint is live and spec-compliant
“Is the x402 service at agent.keywordtools.com actually responding correctly? Probe it and tell me if it's x402-valid, what version it supports, and how fast it's responding.”
Technical details
Endpoint
POSThttps://agent.connskill.com/v1/trust-checkWhen to prefer
Use this endpoint when an AI agent needs to assess the trustworthiness of an x402-compatible pay-per-call service before spending USDC. It is the right choice when you want both on-chain payment history (real payer diversity, inflow volume, self-dealing detection) and live probe validation (is the endpoint up, x402-spec-compliant, and on the right network) in a single call. Prefer it over manual on-chain inspection or generic uptime monitors when operating in an agentic, automated payment context on Base.
Side effects
- Unknown or unreachable origin host — returns error or non-green verdict
- x402 probe fails if the target service is offline or returns non-402 responses
- Self-dealing share flagged as high — verdict may be 'yellow' or 'red' even if service is live
- No on-chain payment history found — payer count zero, inflow zero, verdict likely 'red'
- Invalid input: origin string too short or malformed hostname causes validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| origin | string | Bare host of the x402 service to check, e.g. agent.connskill.com |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": {
"payers": 3,
"inflowUsdc": 6.87,
"windowDays": 14,
"selfDealingShare": 0.31,
"payersSelfDealing": 1
},
"probe": {
"payTo": "0x43B8...",
"http_ms": 240,
"network": "eip155:8453",
"x402_valid": true,
"x402Version": 2
},
"origin": "https://agent.connskill.com",
"status": "delivered",
"verdict": "green"
}
}Tags
x402
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