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JSON Diff Comparison
x402
JSON Diff Comparison is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0324/call, status unknown (last checked 2026-09-14).
Compare two JSON objects and return a structured diff showing added, removed, and changed fields with their paths and values
Price / call$0.0324
Success—
StatusUnknown
How this service works
Compare two JSON objects and return structured diff. Shows added, removed, and changed fields with paths and values. Algorithmic.
Output
A structured diff object listing all added fields (with their new values and paths), removed fields (with their old values and paths), and changed fields (with before and after values and paths) between the two input JSON objects.
Example use cases
Example prompt
“Compare these two JSON objects and show me exactly what changed — the before is {"name":"Alice","age":30,"role":"user"} and the after is {"name":"Alice","age":31,"role":"admin","email":"alice@example.com"}.”
Technical details
Endpoint
GEThttps://api.strale.io/x402/diff-jsonWhen to prefer
Use this endpoint when you need a programmatic, algorithmic diff between two JSON objects — ideal for detecting configuration drift, tracking API response changes, auditing data mutations, or building change-detection pipelines. Prefer this over text-based diff tools when you need structured, path-aware output that distinguishes added, removed, and changed fields.
Side effects
- Missing 'before' or 'after' query parameter returns an error
- Non-JSON or malformed JSON inputs cause parse errors
- Very large or deeply nested JSON objects may hit size limits
- Invalid query parameter encoding for complex nested JSON
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"after": {
"age": 26,
"name": "John",
"email": "john@example.com",
"status": "active"
},
"before": {
"age": 25,
"name": "John",
"status": "active"
}
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.0324,
"settlement_id": "0x2d5178f21092e6c15e8e406864650adc59ac0375e621a08ea6f9821638ab371b"
},
"capability": "diff-json",
"latency_ms": 0,
"provenance": {
"source": "algorithmic",
"fetched_at": "2026-06-03T23:02:27.246Z"
}
},
"added": [
{
"path": "/email",
"value": "john@example.com"
}
],
"changed": [
{
"path": "/age",
"new_value": 26,
"old_value": 25
}
],
"removed": [],
"identical": false,
"added_count": 1,
"changed_count": 1,
"removed_count": 0
}Tags
x402
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