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Agent Result Confidence Check
x402
Agent Result Confidence Check is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-20).
Validates whether a confidence value falls within caller-supplied minimum and maximum bounds, returning acceptance/rejection status with mismatch reasons and normalized evidence.
Price / call$0.001
Success—
StatusUnknown
How this service works
Agent Result Confidence Check: Agent Result Confidence Check checks a confidence value against caller bounds without validating truth from bounded caller-supplied values without an external provider. Call Agent Result Confidence Check before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for Agent Result Confiden…
Output
Returns a structured response containing an explicit acceptance or rejection status, contract-specific check results, normalized evidence values, and detailed mismatch reasons explaining why the confidence value passed or failed the caller-supplied bounds.
Example use cases
Gate x402 payment on confidence
“We just got an agent result back with a confidence of 0.61, but our contract only allows paying if confidence is between 0.70 and 1.0 — run the confidence check and tell me if we should accept or reject before we pay.”
Preflight check before delivery acceptance
“Before I accept this delivered agent result, check whether the reported confidence of 0.88 is within bounds of 0.80 minimum and 0.95 maximum, and give me the normalized evidence and any reasons it might be rejected.”
Reject low-confidence agent output
“Our pipeline requires confidence to be at least 0.90 and no higher than 1.0 — the latest result came back at 0.72, please run the confidence check so I know whether to reject it and why.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/agent-result-confidence-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, in-memory, stateless bounds check on a confidence value before committing to an x402 payment or accepting an agent delivery. It is specifically designed for agentic x402 workflows where you need explicit acceptance/rejection signals with mismatch reasons rather than a simple boolean comparison — prefer it over rolling your own bounds logic when auditability and normalized evidence are needed.
Side effects
- Missing required fields (confidence, minimum, or maximum) returns a validation error
- Inverted bounds (minimum greater than maximum) may produce unexpected behavior or an error
- Non-numeric values for confidence/minimum/maximum cause schema validation failures
- Network timeout or service unavailability returns a 5xx error
- Malformed request body returns a 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| maximum | number | Maximum supplied to Agent Result Confidence Check; used only for this bounded calculation and processed in memory without retention. |
| minimum | number | Minimum supplied to Agent Result Confidence Check; used only for this bounded calculation and processed in memory without retention. |
| confidence | number | Confidence supplied to Agent Result Confidence Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"confidence": 0.8,
"within_bounds": true,
"truth_verified": false
},
"schema": "delx/util-agent-result-confidence-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "90c68bb6b265d2ee3e4e47bc8083dfa4ebca66986876b1ec220a835139832b3f",
"external_calls": 0
},
"operation": "delivery_contract:agent_result_confidence_check"
}
}Tags
x402
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