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ONE Engine Text Token Lines Counter (t9)
x402
ONE Engine Text Token Lines Counter (t9) 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).
Counts and returns line-level token information for a given text input up to 50,000 characters.
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 a JSON object containing line-level token data for the submitted text, including token counts or token sequences broken down by each line of the input.
Example use cases
LLM prompt token budgeting by line
“I'm building a prompt and need to know how many tokens each line uses so I don't exceed my context limit — can you count the tokens per line for this text: 'You are a helpful assistant.
Answer concisely.
Do not repeat yourself.'”
Document preprocessing for chunking
“Before I chunk this document for RAG, I want to see the token count for each line so I can split it intelligently — here's the text: 'Introduction to machine learning.
Supervised learning uses labeled data.
Unsupervised learning finds hidden patterns.'”
Detecting token-heavy lines in a script
“Can you check each line of this script and tell me which ones have the most tokens? Here's the content: 'Once upon a time in a land far away, there lived a mighty dragon.
The dragon breathed fire.
villagers feared it greatly.'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-token/lines/t9?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need granular, line-by-line token analysis of a text block, especially for LLM context planning, document chunking, or prompt engineering. It is low-cost ($0.018 USDC per call) and pay-per-use via x402 on Base, making it suitable for agent workflows that need lightweight, on-demand tokenization without a subscription.
Side effects
- Text exceeds 50,000 character limit — likely returns a 400 or validation error
- Empty text field — may return an error or empty result
- Payment failure via x402 — returns 402 Payment Required if USDC not provided
- Malformed JSON body — returns 400 Bad Request
- Network timeout on Cloudflare Worker — 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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