# ONE Engine Text Token Character Counter (Top 10)

> ONE Engine Text Token Character Counter (Top 10) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-02).

Counts or analyzes the top 10 character-level token statistics from a given text string up to 50,000 characters.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-token/characters/t10?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-text-token-character-counter-top-10-70e5ea83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lnNkxz1CyBf6-TYUTgEi5

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability one-engine-text-token-character-counter-top-10-70e5ea83 -d '<json body>'
```

Example prompt: Can you count the top 10 most common characters in this text for me: 'The quick brown fox jumps over the lazy dog. Pack my box with five dozen liquor jugs.'?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call character-level frequency or token analysis of a text without setting up a heavy NLP pipeline. It is ideal for agents doing quick text fingerprinting, preprocessing checks, or character distribution audits on documents up to 50,000 characters. At $0.03 USDC per call it is cost-effective for single-document spot checks.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Empty text field causes computation error or empty result
- Payment failure via x402 if USDC balance is insufficient
- Malformed JSON body returns 400 error
- Ambiguous or binary/non-UTF8 text may produce unexpected character stats

## 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 top 10 character tokens ranked by frequency or some computed statistic derived from the input text, including character identities and their associated counts or scores.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text up to 50000 characters"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-text-token-character-counter-top-10-70e5ea83/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)