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ONE Engine ASCII Fold + T9 Text Normalizer
x402
ONE Engine ASCII Fold + T9 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 text to ASCII-folded and T9-normalized form, stripping accents and mapping characters to T9 keypad equivalents for downstream matching or indexing.
Price / call$0.018
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns an object containing the ASCII-folded and T9-normalized representation of the submitted text, suitable for use in search indexing, keypad-based lookups, or legacy ASCII-only systems.
Example use cases
Keypad search index preparation
“I have a list of restaurant names with accents and special characters — can you ASCII-fold and T9-normalize them all so I can build a T9-style search index? Start with: 'Björn's Köttbullar & Café Año'.”
Diacritic stripping for cross-system matching
“I need to match user-submitted names against a plain-ASCII database. Can you fold this name to ASCII and give me the T9 version too? The name is 'Héloïse Édouard'.”
Telecom or legacy system input preparation
“Our legacy telecom system only understands T9 digit sequences. Can you convert this message to T9 format after ASCII-folding it? The text is: 'Ångström über résumé'.”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-normalize/ascii-fold/t9?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need both ASCII folding (diacritic removal) AND T9 digit mapping in a single pass — particularly for building keypad-search indexes, preparing data for legacy telecom or SMS systems, or normalizing multilingual text for ASCII-only matching pipelines. Prefer this over a plain ASCII-fold-only endpoint when T9 representation is required downstream.
Side effects
- Text exceeds 50,000 character limit — request rejected
- Empty or missing 'text' field — validation error
- Payment failure via x402 protocol — 402 response before processing
- Malformed JSON body — 400 bad request
- Network timeout on Cloudflare Workers edge — transient 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Text up to 50000 characters |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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