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ONE Engine Text Token Character Counter
x402
ONE Engine Text Token Character Counter is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).
Counts the number of characters in a given text string, returning token/character metrics for up to 50,000 characters of input.
Price / call$0.004
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 character count and possibly token-level metrics for the submitted text, helping agents validate text length or plan downstream API usage.
Example use cases
Pre-flight API payload sizing
“Before I send this article to the summarization API, can you count exactly how many characters it contains so I know if it's under the 50,000 limit? Here's the full text: [article body]”
Social media post character check
“I've drafted this LinkedIn post and need to know the exact character count before publishing — can you count the characters in: 'Excited to announce our new product launch! After 18 months of hard work, our team has built something truly special. Read more at our blog.'”
Content field validation for a CMS
“We have a CMS field that caps at 500 characters — can you check how many characters are in this description I wrote: 'Our award-winning artisan bakery has been serving the local community since 1987, offering fresh sourdough, pastries, and custom celebration cakes baked daily with locally sourced ingredients.'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-token/characters/t6?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a cheap, pay-per-call character counting or text measurement utility without spinning up your own infrastructure. At $0.004 USDC per call it is cost-effective for sporadic agent tasks that need to validate text length before submitting to downstream services with character limits.
Side effects
- Text exceeding 50,000 characters may be rejected or truncated
- Empty or missing 'text' field returns a validation error
- Network timeouts on the Cloudflare Worker edge node
- x402 payment failure if USDC balance is insufficient or payment header is malformed
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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