# ONE Engine Text Analysis Tier 2

> ONE Engine Text Analysis Tier 2 is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0009/call, status unknown (last checked 2026-10-02).

Analyzes a text string and returns a tier-2 analysis result via a low-cost pay-per-call API on Base using x402.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v2/text-analysis/t2?utm_source=zero.xyz
- Price: $0.0009/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-2-0fc642df
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VEiRcfY8cOm6KRLhBzXyc

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-2-0fc642df -d '<json body>'
```

Example prompt: Analyze this text for me using the tier-2 ONE Engine text analysis: 'The product launch exceeded all expectations, driving a 40% increase in quarterly revenue.'

## When to prefer this

Choose this endpoint when you need a low-cost, per-call text analysis operation billed in USDC via x402 on Base, and you want tier-2 depth of analysis. Prefer this over heavier NLP APIs when cost efficiency and autonomous agent compatibility are priorities, and when a simple text string input with a structured JSON result is sufficient for your pipeline.

## Known failure modes

- Payment not included or insufficient USDC balance causes 402 Payment Required response
- Empty or missing 'text' field in request body causes validation error
- Oversized text input may exceed processing limits
- Network timeout from Cloudflare Worker under load
- Malformed JSON body returns 400 Bad Request

## How this service works

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

## Output

Returns a JSON object with a 'tier' field (value: 2) and a 'result' field containing the tier-dependent text analysis output, which may include classification labels, extracted entities, sentiment scores, or structured insights depending on the engine's analysis logic.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tier": 2,
  "result": "Tier-dependent output"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-text-analysis-tier-2-0fc642df/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)