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Delx Commerce Agent Result Cost Check
x402
Delx Commerce Agent Result Cost Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Checks whether a given USDC cost is within a specified budget maximum, returning a verifiable pass/fail result with evidence of no data retention.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with the submitted cost amount, the maximum budget, a boolean within_budget flag, a pass/fail status, and an evidence block containing a SHA-256 hash of the input, a flag confirming no data retention, and a count of zero external calls made.
Example use cases
Pre-approve cost before agent payment
“My agent is about to pay 0.001 USDC for a result — can you check that this is within my max budget of 0.005 USDC before it goes through?”
Budget guard for autonomous agent loop
“At each step of my agent workflow, I want to verify the per-call cost of 0.001 USDC stays within a 0.003 USDC ceiling — run that check now and confirm nothing is stored.”
Audit trail for cost compliance
“I need a verifiable record showing that a 0.002 USDC charge was within my 0.01 USDC spending limit, with proof that my input data wasn't retained or sent anywhere external.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/agent-result-cost-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs a lightweight, verifiable, privacy-preserving check to confirm a USDC cost is within a budget before authorizing a pay-per-result payment. Prefer it over manual comparisons when you need cryptographic evidence (SHA-256 input hash, zero external calls, no retention) for compliance or audit purposes within agent workflows.
Side effects
- Invalid or non-numeric USDC string values cause parsing errors
- Missing required fields returns a validation error
- cost_usdc exceeds maximum_usdc returns within_budget: false with status fail
- Malformed JSON body returns a 400 error
- Payment of 0.001 USDC not included returns a 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cost_usdc | string | Cost USDC supplied to Agent Result Cost Check; used only for this bounded calculation and processed in memory without retention. |
| maximum_usdc | string | Maximum USDC supplied to Agent Result Cost Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"amount_usdc": "0.001",
"maximum_usdc": "0.002",
"within_budget": true
},
"schema": "delx/util-agent-result-cost-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "22cac9b8faf2680905382f84e7f4ba215e19e1473c911e345e9e10defcc59533",
"external_calls": 0
},
"operation": "delivery_contract:agent_result_cost_check"
}
}Tags
x402
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