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JSON Evidence Compare
x402
JSON Evidence Compare is a paid API for AI agents from agent-json-reliability.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Compares two JSON objects or values and returns a structured evidence report of their differences or equivalence.
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic JSON repair and JSON Schema validation for AI agents. Free MCP, inspect, validate, repair. Paid POST /v1/json/reliable 0.003 USDC via x402 on Base.
Output
A structured evidence report (JSON) with an 'ok' status flag and details about whether the two compared JSON inputs match, including field-level differences, structural mismatches, or confirmation of equivalence.
Example use cases
Verify LLM output consistency
“I ran the same prompt twice through my LLM and got two different JSON responses — can you compare them and tell me exactly which fields differ and whether they're structurally equivalent?”
Confirm JSON repair fidelity
“I just ran a broken JSON through a repair tool — can you compare the repaired output against the original to confirm no data was lost or changed unexpectedly?”
Detect API response drift
“I have yesterday's API response and today's API response saved as JSON — can you compare them and give me a detailed evidence report of what changed?”
Technical details
Endpoint
POSThttps://agent-json-reliability.onrender.com/v1/evidence/compare?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a deterministic, auditable comparison between two JSON objects — especially useful for AI agents that need to verify that a JSON repair, transformation, or LLM output preserved original data integrity. Prefer this over manual diffing when you need a structured evidence report rather than a raw diff.
Side effects
- Malformed or unparseable JSON inputs may return a validation error
- Missing required fields in the request body may return a 400 error
- Payment not included or invalid x402 payment header returns a 402 Payment Required
- Large deeply nested JSON objects may time out on the Render free-tier host
- Server cold-start latency on Render may cause initial timeouts
Output
Schema · Response
{
"example": {
"ok": true
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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