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Delx Commerce X402 Amount Budget Check
x402
Delx Commerce X402 Amount Budget 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 raw payment amount falls within a specified maximum budget limit for x402 micropayment flows
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 confirming whether the provided amount_raw is within the maximum_raw budget, including the original inputs, a boolean within_budget flag, a pass/fail status, and a verifiable evidence block containing an input SHA256 hash, a retained=false flag confirming no data retention, and an external_calls count of 0.
Example use cases
Pre-flight spend guard for AI agents
“Before my agent pays for any x402 API call, check if the raw amount of 500 is within my cap of 1500 raw units — only proceed if it's within budget.”
Spending limit enforcement on micropayments
“I have a maximum spend of 5000 raw units per transaction — can you verify that a payment of 3200 raw units is within that limit?”
Budget validation in automated payment pipeline
“My automated pipeline needs to validate that each x402 charge of 999 raw units stays under a hard ceiling of 1000 raw units before it gets processed.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/x402-amount-budget-check?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs a lightweight, privacy-preserving, verifiable budget guard before executing an x402 micropayment — particularly when you need cryptographic evidence (SHA256 of inputs) that no data was retained and no external calls were made. Prefer this over custom logic when operating in x402-native payment pipelines on Base or Solana where auditability and verifiability matter.
Side effects
- Missing or malformed amount_raw or maximum_raw strings may cause a validation error
- Non-numeric string values may result in computation failure
- Payment failure via x402 if USDC balance is insufficient to cover the $0.001 call fee
- Network or service unavailability returning a non-200 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| amount_raw | string | Amount Raw supplied to X402 Amount Budget Check; used only for this bounded calculation and processed in memory without retention. |
| maximum_raw | string | Maximum Raw supplied to X402 Amount Budget Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"amount_raw": "1000",
"maximum_raw": "2000",
"within_budget": true
},
"schema": "delx/util-x402-amount-budget-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "95ec59ab3108f4c8d18b157c563dcdebd3f620f744be1691dbc78948f24b6667",
"external_calls": 0
},
"operation": "delivery_contract:x402_amount_budget_check"
}
}Tags
x402
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