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aiskills402 JSON Diff Paths
x402
aiskills402 JSON Diff Paths is a paid API for AI agents from api.aiskills402.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).
Compares two JSON documents (BEFORE and AFTER) and returns a strict list of changed paths and values using JSON Pointer notation
Price / call$0.01
Success—
StatusUnknown
How this service works
JSON Diff Paths — Compares two pasted JSON documents, BEFORE and AFTER, and lists every value that differs as strict JSON, one entry per changed path, with the old and the new value. Paths are JSON Pointers, types are strict (the string "1" is not the number 1, null is not a missing key, an empty array is not an empty object), arrays are compared by index with no move detection, object key order and number spelling (1.0, 1e2) are not changes, and a document that is not valid JSON is refused, ne…
Output
Returns a strict JSON array where each entry represents one changed path, including the JSON Pointer path, the old value, and the new value. Types are treated strictly (string vs number vs null), arrays are compared by index, and object key order differences are not reported as changes. Invalid JSON input is refused with an error.
Example use cases
API response change detection
“I have two versions of an API response and I want to know exactly what changed — the BEFORE is {"user":{"name":"Alice","role":"viewer"}} and the AFTER is {"user":{"name":"Alice","role":"admin","verified":true}}. Show me each changed path with old and new values.”
Config file audit before deploy
“Before I deploy, can you diff these two config JSONs and list every value that's different? BEFORE: {"timeout":30,"retries":3,"debug":false} and AFTER: {"timeout":60,"retries":3,"debug":true}.”
Debugging unexpected data mutation
“Something mutated my JSON object and I'm not sure what changed. Here's the original: {"items":[1,2,3],"total":3} and the current state: {"items":[1,2,4],"total":3}. Tell me exactly which JSON Pointer paths have different values.”
Technical details
Endpoint
GEThttps://api.aiskills402.com/v1/skills/json-diff-paths/file?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a precise, type-strict, machine-readable diff of two JSON documents using JSON Pointer paths. It is ideal for developers and agents that need to programmatically identify exactly which fields changed, with strict type semantics (string '1' vs number 1, null vs missing key). Prefer this over generic text-diff tools when JSON structure matters, or over JSON merge utilities when you want a list of changed paths rather than a merged result.
Side effects
- Invalid JSON in BEFORE or AFTER document — endpoint refuses and returns an error rather than attempting to parse
- Malformed JSON Pointer paths in output if input has deeply nested or unusual key names
- No differences found returns an empty diff list, which may be mistaken for an error
- Very large JSON documents may time out or hit size limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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