# ONE Engine T9 Uppercase Text Normalizer

> ONE Engine T9 Uppercase Text Normalizer is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.018/call, status unknown (last checked 2026-10-02).

Converts input text to uppercase using T9-style normalization via a pay-per-call API on Base.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-normalize/uppercase/t9?utm_source=zero.xyz
- Price: $0.018/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-t9-uppercase-text-normalizer-8793af85
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nE3S31OlkehBZ2Jf_Rtvq

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-t9-uppercase-text-normalizer-8793af85 -d '<json body>'
```

Example prompt: Can you convert this text to all uppercase for me: 'hello world, this is a test message for my pipeline'?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call uppercase text conversion without standing up your own infrastructure, especially in agentic pipelines on Base that already use x402 micropayments. Ideal for preprocessing steps where you need reliable, hosted text normalization at low cost ($0.018 USDC per call) without managing API keys.

## Known failure modes

- Text exceeds 50000 character limit — request rejected
- Missing required 'text' field in request body — validation error
- Payment failure via x402 on Base — 402 response if USDC payment not processed
- Network timeout on Cloudflare Worker — transient 5xx error

## How this service works

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

## Output

A JSON object containing the uppercased version of the submitted text, with all alphabetic characters converted to their capital equivalents and other characters preserved.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text up to 50000 characters"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-t9-uppercase-text-normalizer-8793af85/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)