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ONE Engine T9 Encoding Pack
x402
ONE Engine T9 Encoding Pack is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Converts input text using T9 telephone keypad encoding at tier 9 of ONE Engine's encoding-pack utility.
Price / call$0.01
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object containing the tier level (9) and a tier-dependent T9-encoded result string derived from the input text, mapping alphabetic characters to their corresponding telephone keypad digit sequences.
Example use cases
T9 word lookup for retro SMS
“I'm building a retro SMS tool — can you encode the phrase 'good morning' into its T9 keypad digit sequence?”
Keypad digit mapping for phone search
“What T9 number sequence maps to the word 'conference' on a telephone keypad?”
Vanity number reverse planning
“Encode the word 'flowers' into T9 digits so I can see what phone number it would spell out.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v2/encoding-pack/t9?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, low-cost ($0.01 USDC) T9 telephone keypad encoding of a text string via a pay-per-call x402 micropayment API on Base. Ideal for autonomous agents that need on-demand encoding without subscriptions or API keys, especially in workflows involving retro SMS, phone vanity number mapping, or keypad-based text lookup.
Side effects
- Missing or empty 'text' field returns an error or undefined result
- Non-alphabetic or special characters may produce unexpected or empty encoding
- Payment failure via x402 (insufficient USDC balance) prevents call execution
- Network timeout on Cloudflare Workers edge if upstream is unresponsive
- Malformed JSON body returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string |
Output
Schema · Response
{
"type": "json",
"example": {
"tier": 9,
"result": "Tier-dependent output"
}
}Tags
x402
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