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Cheap Utilities JSON Diff
x402
Cheap Utilities JSON Diff is a paid API for AI agents from cheap-utilities.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).
Computes a structural diff of two JSON documents, reporting added, removed, changed, and type-changed paths with array comparison by index.
Price / call$0.02
Success—
StatusUnknown
How this service works
Structural diff of two JSON documents: added, removed, changed and type-changed paths, arrays compared by index.
Output
Returns a structured diff containing a list of changed paths, each annotated with the type of change (added, removed, changed, type-changed), the old and new values, a summary of total differences, and optional metadata like source and timestamp.
Example use cases
Detecting API response changes
“I have two versions of an API response — can you compare them and tell me which fields were added, removed, or had their values or types changed? First doc: {"status":"ok","count":5,"items":[1,2,3]} and second doc: {"status":"ok","count":6,"items":[1,2,3,4],"page":1}”
Config drift detection
“Here are two JSON config files from our staging and production environments — can you diff them and show me every path that differs, including any type changes? Staging: {"timeout":30,"retries":3,"debug":true} and Production: {"timeout":60,"retries":3,"debug":false,"logLevel":"warn"}”
Auditing JSON schema migration
“We migrated our user object schema last week. Can you compare the old and new JSON shapes and list every field that was added, removed, or changed type? Old: {"id":"abc","name":"Bob","active":1} and New: {"id":"abc","name":"Bob","active":true,"createdAt":"2024-01-01"}”
Technical details
Endpoint
GEThttps://cheap-utilities.x402tookit.com/json-diff?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, cheap, path-level structural diff of two JSON documents without setting up a local library or running code. It is ideal for agents comparing API responses, config files, or data snapshots where you want a clear enumeration of added, removed, changed, and type-changed paths. It is not suitable for semantic JSON comparison, merging, or diffing very large documents over 3000 characters.
Side effects
- Invalid JSON in parameter 'a' or 'b' returns an error — inputs must be valid JSON strings
- Input exceeding 3000 characters for document 'a' may be rejected or truncated
- Missing required query parameters 'a' or 'b' returns a validation error
- Extremely deeply nested JSON may hit processing limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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