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JSON Object Rename Keys
x402
JSON Object Rename Keys is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Renames top-level keys of a JSON object using a caller-supplied mapping and detects/reports key collisions deterministically.
Price / call$0.001
Success—
StatusUnknown
How this service works
JSON Object Rename Keys: JSON Object Rename Keys renames top-level keys using a caller mapping and reports collisions from bounded caller-supplied values without an external provider. Call JSON Object Rename Keys before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Object Rename Keys as versioned deterministic JSON. Pri…
Output
A versioned deterministic JSON result containing the renamed object with new top-level keys applied per the mapping, collision counts and details where renames would overwrite existing keys, transformation counts, and normalized values — all processed in memory without data retention.
Example use cases
Normalize keys before downstream API call
“I have a JSON object with snake_case keys like 'account_id' and 'created_at' but the downstream service expects camelCase. Rename them using this mapping: {'account_id':'accountId','created_at':'createdAt'} and tell me if there are any collisions.”
Detect collision in schema migration
“I'm migrating a schema and need to rename 'id' to 'userId' and 'name' to 'id' in this object. Can you check whether those renames would cause a collision before I apply them?”
Rekey webhook payload for CRM ingestion
“This incoming webhook payload uses legacy field names. Rename 'cust_no' to 'customerId', 'amt' to 'amount', and 'ts' to 'timestamp' in the object, then tell me the result and whether any key conflicts came up.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/json-object-rename-keysWhen to prefer
Use this endpoint when you need a fast, deterministic, in-memory rename of top-level JSON keys with collision detection before handing structured data to a downstream tool with a stricter schema contract. Prefer it over ad-hoc agent-side key renaming when you need a versioned, auditable result with explicit collision reporting. Not suitable for nested key renaming, array transformation, or value-level mutations.
Side effects
- Mapping references a key not present in the object — silently skipped or flagged in the result
- Rename target collides with an existing key — reported as a collision rather than silently overwriting
- Object exceeds 128 top-level properties — rejected due to maxProperties constraint
- Mapping exceeds 128 entries — rejected due to maxProperties constraint
- Malformed input JSON — returns a validation error
- Network or payment authorization failure — HTTP 402 or 5xx response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| object | object | Object supplied to JSON Object Rename Keys; used only for this bounded calculation and processed in memory without retention. |
| mapping | object | Mapping supplied to JSON Object Rename Keys; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"object": {
"id": 1,
"firstName": "Ada"
},
"collisions": []
},
"schema": "delx/util-json-object-rename-keys/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "17b6ed7c6acbd73e4c278919af805585c725f614019bd98fd34297fddb0367ca",
"external_calls": 0
},
"operation": "data_batch:json_object_rename_keys"
}
}Tags
x402
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