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Delx Commerce — JSON Hash Fields Check
x402
Delx Commerce — JSON Hash Fields 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).
Validates that specified fields in a JSON object match expected hash values, returning a pass/fail result with verifiable evidence.
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 a 'passed' boolean, a list of any 'invalid_fields' that failed the hash check, a status string ('pass' or 'fail'), and an evidence block containing the SHA-256 fingerprint of the input, confirmation that no data was retained, and the count of external calls made (always 0).
Example use cases
Audit payload field integrity
“I have a JSON payload from an upstream service and I need to verify that the 'token' and 'checksum' fields have valid hashes with hex length 64 before I trust it — can you run that check?”
Detect tampered API response fields
“Can you check if the fields 'order_id' and 'price' in this API response object have been tampered with by validating their hashes at hex length 32? Here's the object: {"order_id": "XYZ-99", "price": "99.99", "status": "confirmed"}.”
Pre-process validation before data pipeline
“Before I push this batch record into the pipeline, verify that the 'record_hash' and 'timestamp' fields in this JSON pass the hash check with hex length 128.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/json-hash-fields-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, in-memory, pay-per-use hash validation of specific JSON object fields without any data retention, and when you require a verifiable evidence receipt (SHA-256 input fingerprint, zero external calls) to prove the check was performed cleanly. Ideal for agent pipelines that need cryptographic integrity checks on JSON payloads before passing data downstream, especially when privacy matters and you don't want field data stored server-side.
Side effects
- Fields array exceeds 256 items — request rejected
- Object exceeds 128 properties — request rejected
- Individual field string exceeds 8192 characters — rejected
- Malformed JSON body — 400 error
- Invalid hex_length value — validation error
- Payment not provided or insufficient USDC — 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| fields | array | Fields supplied to JSON Hash Fields Check; used only for this bounded calculation and processed in memory without retention. |
| object | object | Object supplied to JSON Hash Fields Check; used only for this bounded calculation and processed in memory without retention. |
| hex_length | integer | Hex Length supplied to JSON Hash Fields Check; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"passed": true,
"invalid_fields": []
},
"schema": "delx/util-json-hash-fields-check/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "b34b373467de4fd6c74125aa7caaaca2d8f0a53e73f08fb6d013e1409f387018",
"external_calls": 0
},
"operation": "data_batch:json_hash_fields_check"
}
}Tags
x402
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