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Delx Commerce — JSON Object Diff
x402
Delx Commerce — JSON Object Diff 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).
Computes the structural difference between two JSON objects, returning added, changed, and removed fields with before/after values.
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 structured diff object with three keys: 'added' (fields present only in the after object), 'changed' (fields in both objects with differing values, showing before and after values), and 'removed' (fields present only in the before object). Also returns a status field ('pass'), operation identifier, evidence metadata including a SHA-256 hash of the input and confirmation that no data is retained after processing.
Example use cases
API response change tracking
“I got two different JSON responses from a third-party API — the first one has {"status":"active","plan":"free","seats":1} and the second has {"status":"active","plan":"pro","seats":5}. Can you diff them and show me exactly what changed?”
Config drift detection
“Here are two versions of a service config object — before: {"timeout":30,"retries":3,"region":"us-east"} and after: {"timeout":60,"retries":3,"region":"eu-west","debug":true}. What fields were added or changed?”
Audit trail for record updates
“A user record was updated in our system. The old version is {"email":"alice@example.com","role":"viewer","active":true} and the new version is {"email":"alice@example.com","role":"admin","active":false,"verified":true}. Show me a structured diff of what changed.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/json-object-diff?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call JSON object diff with no signup, guaranteed in-memory processing (no data retention), and cryptographic evidence of the computation. Ideal for AI agents that need to detect state changes between two JSON snapshots in a verifiable, auditable way without standing up infrastructure. Prefer over custom diffing logic when you want a standardized schema ('delx/util-json-object-diff/v1') and an input hash for audit purposes.
Side effects
- Input objects exceed 128 properties — API enforces maxProperties:128 on both before and after
- Malformed JSON body returns a validation error
- Payment not provided or insufficient USDC — x402 payment required before result is returned
- Network timeout if the x402 payment handshake is slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| after | object | After supplied to JSON Object Diff; used only for this bounded calculation and processed in memory without retention. |
| before | object | Before supplied to JSON Object Diff; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"added": {
"c": 3
},
"changed": {
"a": {
"after": 2,
"before": 1
}
},
"removed": {
"b": 2
}
},
"schema": "delx/util-json-object-diff/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "164aa307def42287450ca3e3593d1a42c71383be4ad4b1f0c368f8c66f056f3e",
"external_calls": 0
},
"operation": "data_batch:json_object_diff"
}
}Tags
x402
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