# ONE Engine Records Omit (t4)

> ONE Engine Records Omit (t4) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-02).

Removes specified keys from an array of JSON records and optionally renames or applies defaults to remaining fields.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/records/omit/t4?utm_source=zero.xyz
- Price: $0.0015/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-omit-t4-a0ab754b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FZDbUumljUWdhvt4ng0Qr

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-omit-t4-a0ab754b -d '<json body>'
```

Example prompt: Take these 200 user profile records and strip out the 'password', 'ssn', and 'internal_id' fields from each one — also rename 'email_address' to 'email' and set a default of 'unknown' for any missing 'country' field.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call solution to strip, rename, or apply defaults to JSON records in bulk without standing up your own data transformation pipeline. Ideal for agents doing quick ETL preprocessing on up to 500 records at a time with minimal overhead.

## Known failure modes

- Missing or empty 'records' array returns a validation error
- More than 500 records in a single call may be rejected
- Malformed JSON in records causes a parse error
- Invalid rename or defaults object structure returns a schema error
- Payment failure via x402 results in a 402 response before processing

## How this service works

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

## Output

Returns an array of transformed JSON objects with the specified keys omitted, fields renamed according to the rename map, and defaults applied where values are absent.

## 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-omit-t4-a0ab754b/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)