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Decision Data Studio JSON Diff
x402
Decision Data Studio JSON Diff is a paid API for AI agents from api.ikoles.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Computes a structured diff between two JSON values, returning per-operation change details and a summary of additions, modifications, and removals.
Price / call$0.01
Success—
StatusUnknown
How this service works
Local-first data and agent workflow tools from Decision Data Studio, plus verified EU tender shortlists and machine-callable utilities.
Output
Returns a JSON object with an 'equal' boolean, a 'changes' array of RFC-6902-style operations (op, path, before, after), a 'summary' object with counts of added/changed/removed/total operations, SHA-256 hashes of both inputs, a 'generatedAt' ISO timestamp, and a 'truncated' flag if the diff was cut off due to size.
Example use cases
Detect config drift between deployments
“I have the JSON config from last week and the current one — can you diff them and tell me which keys were added, removed, or changed?”
Audit API response changes over time
“Here's the JSON response I got from the orders API yesterday and again just now — show me what fields changed between the two.”
Validate idempotency of a data pipeline
“I ran my ETL pipeline twice on the same input — can you compare the two output JSON records and confirm they're identical, or flag any differences?”
Technical details
Endpoint
POSThttps://api.ikoles.dev/v1/json-diffWhen to prefer
Choose this endpoint when you need a machine-readable, structured diff of two arbitrary JSON values with per-field change granularity and SHA-256 provenance hashes — especially useful in agent workflows that need to detect state changes, audit mutations, or verify idempotency. Prefer it over text-based diff tools when the inputs are JSON and you need structured output (op/path/before/after) rather than line-by-line text deltas.
Side effects
- Malformed JSON in 'before' or 'after' fields causes a parse error response
- Missing 'before' or 'after' fields returns a validation error
- Extremely large JSON payloads may result in a truncated diff (truncated: true)
- Network or service unavailability returns a non-200 status
- Payment failure (x402) blocks the request before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| after | — | Any valid JSON value after the change |
| before | — | Any valid JSON value before the change |
Output
Schema · Response
{
"type": "json",
"example": {
"equal": false,
"changes": [
{
"op": "replace",
"path": "/state",
"after": "done",
"before": "queued"
}
],
"summary": {
"added": 0,
"total": 1,
"changed": 1,
"removed": 0
},
"truncated": false,
"afterSha256": "2b69c90c1cdbeb8253b34a78e05e2d38c2875f070c345f0465f375ab52e186ca",
"generatedAt": "2026-07-24T00:00:00.000Z",
"beforeSha256": "c55d11e35f99b2c5e1eb592183654435da275e8f42119f4c4fca0e20af55f48a"
}
}Tags
x402
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