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ONE Engine Text Normalize Lowercase
x402
ONE Engine Text Normalize Lowercase is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0005/call, status unknown (last checked 2026-10-02).
Converts input text to all-lowercase characters via a pay-per-call API using x402 micropayments on Base.
Price / call$0.0005
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
Returns a JSON object containing the processed text with all alphabetic characters converted to lowercase. The response schema is open (additionalProperties: true), so the lowercased result is included in the returned object alongside any metadata the service provides.
Example use cases
Normalize search query before indexing
“Take this user search query and convert it to all lowercase so I can do a case-insensitive lookup: 'iPhone 15 Pro MAX Black Friday DEALS'”
Standardize user-submitted form input
“I've got a user registration email field that came in as 'JohnDOE@Example.COM' — can you lowercase it so I can store it consistently in my database?”
Preprocess document text for NLP pipeline
“Before I run sentiment analysis on this product review, I need it fully lowercased: 'This Product Is AMAZING but the Shipping was TERRIBLE and took 3 Weeks!'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-normalize/lowercase/t1?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a reliable, cheap, pay-per-call text lowercasing operation within an autonomous agent pipeline that already uses x402 micropayments on Base. It is ideal for agents that need to normalize text casing before comparisons, indexing, or NLP tasks without spinning up a local string library. At $0.0005 USDC per call it is cost-effective for occasional agent-driven text normalization tasks where simplicity and no-setup overhead matter more than batching.
Side effects
- Text exceeds 50,000 character limit — request rejected or truncated
- Payment not included or insufficient USDC balance via x402 — 402 Payment Required response
- Empty text field or missing required 'text' property — validation error
- Network timeout on the Cloudflare Worker endpoint
- Non-UTF-8 or malformed text encoding causing processing errors
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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