# ONE Engine Records Rename (Top-10 Field Renaming)

> ONE Engine Records Rename (Top-10 Field Renaming) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-02).

Renames fields across up to 500 JSON records, returning the top 10 transformed results.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/records/rename/t10?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-records-rename-top-10-field-renaming-61ac2624
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JzV6RG4j21Ekrg4u8nZrK

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability one-engine-records-rename-top-10-field-renaming-61ac2624 -d '<json body>'
```

Example prompt: I have a list of product records with fields like 'prod_id', 'prod_name', and 'prod_price' — can you rename them to 'id', 'name', and 'price' across all the records and give me the top 10 results?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call solution to batch-rename fields across JSON records (up to 500 at a time) and only need the top 10 results. It is ideal for agents that need ad-hoc schema normalization without standing up a dedicated ETL pipeline, and is cost-effective at $0.03 USDC per call via x402 on Base.

## Known failure modes

- Missing required 'records' field returns a validation error
- Records array exceeding 500 items may be rejected or truncated
- Invalid rename mapping (non-object) causes a schema error
- Payment failure via x402 returns HTTP 402 before processing
- Malformed JSON in records causes a parse error

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

An object containing up to 10 transformed JSON records with fields renamed according to the provided mapping, with any specified default values applied and optional key filtering.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "records"
 ],
 "properties": {
  "keys": {
   "type": "array"
  },
  "rename": {
   "type": "object"
  },
  "records": {
   "type": "array",
   "description": "Up to 500 JSON objects"
  },
  "defaults": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-records-rename-top-10-field-renaming-61ac2624/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)