# ONE Engine Text Analysis Tier 9

> ONE Engine Text Analysis Tier 9 is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Performs tier-9 text analysis on a given string, returning a tier-dependent structured result via a pay-per-call x402 API on Base.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v2/text-analysis/t9?utm_source=zero.xyz
- Price: $0.01/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-analysis-tier-9-37c139f4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_17s8wYE7XAHinwBW_dWKC

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-analysis-tier-9-37c139f4 -d '<json body>'
```

Example prompt: Run a tier-9 text analysis on this passage: 'The quarterly earnings exceeded expectations, driven by strong consumer demand and lower operating costs.' and give me the structured result.

## When to prefer this

Choose this endpoint when you need a low-cost ($0.01 USDC), pay-per-call text analysis operation suitable for autonomous agent pipelines running on Base, especially when you want tier-9 depth of analysis and can tolerate an opaque tier-dependent output format. Prefer it over heavier NLP APIs when cost-per-call is a primary concern and you are already operating within an x402 payment infrastructure.

## Known failure modes

- Missing or empty 'text' field returns a validation error
- Payment not included or insufficient USDC triggers 402 Payment Required
- Oversized text input may cause rejection or truncation
- Network timeout on the Cloudflare Worker edge may yield a 504
- Malformed JSON body returns a 400 Bad Request

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

A JSON object containing a 'tier' field (value 9) and a 'result' field whose content is tier-dependent — the exact nature of the analysis output (e.g. classification labels, extracted entities, sentiment scores) is determined by the tier-9 processing logic.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tier": 9,
  "result": "Tier-dependent output"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-text-analysis-tier-9-37c139f4/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)