# ONE Engine Title Case Converter

> ONE Engine Title Case Converter is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Converts a text string to title case formatting using pay-per-call pricing over x402 on Base.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v1/text/title-case?utm_source=zero.xyz
- Price: $0.001/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-title-case-converter-401dc45a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r4XhjdYM9PQL9Q723hMj8

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-title-case-converter-401dc45a -d '<json body>'
```

Example prompt: Can you convert this to title case for me: 'the quick brown fox jumps over the lazy dog'?

## When to prefer this

Choose this endpoint when you need a simple, cheap, single-call title case conversion without setting up a local NLP library — especially in autonomous agent pipelines where microtransaction-based pay-per-call pricing via x402 on Base is already supported. Ideal for formatting titles, headings, or labels at scale without a subscription.

## Known failure modes

- Missing or empty 'text' field returns an error or empty result
- Extremely long strings may be rejected or truncated
- Payment failure via x402 prevents the call from completing
- Network timeout on the Cloudflare Worker edge node

## How this service works

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

## Output

A JSON object containing the input text converted to title case formatting, e.g. {"text": "One Engine Utility"}.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "One Engine Utility"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-title-case-converter-401dc45a/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)