# ONE Engine T9 Word Lookup

> ONE Engine T9 Word Lookup 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 T9 numeric keypad input into matching words using token-based text processing

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/words/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-word-lookup-0b2a1bd3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Kr6wSdVdaEyaFHjcddvVi

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-word-lookup-0b2a1bd3 -d '<json body>'
```

Example prompt: Can you decode the T9 number sequence '4663' and tell me what words it could represent on a phone keypad?

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-call T9 number-to-word decoding without managing your own dictionary or predictive text infrastructure. Ideal for agents processing legacy SMS data, building retro phone UIs, or solving T9-based puzzles at low per-call cost using USDC micropayments on Base.

## Known failure modes

- Empty or missing 'text' field returns a validation error
- Input exceeding 50000 characters may be rejected
- Non-numeric or invalid T9 sequences may return empty word lists
- Payment failure via x402 protocol returns HTTP 402
- Network timeout on the Cloudflare Workers edge

## How this service works

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

## Output

Returns an object containing the possible words or word candidates that correspond to the given T9 numeric input, enabling predictive text resolution or decoding of number-pad encoded strings.

## 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-word-lookup-0b2a1bd3/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)