# ONE Engine Number Analysis Pack Tier 2

> ONE Engine Number Analysis Pack 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).

Performs tier-2 number analysis on a numeric input value, returning a tier-dependent analytical result via a pay-per-call x402 API.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v2/number-analysis-pack/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-number-analysis-pack-tier-2-71c207fe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gFOxuY75F04SL-CKigGwu

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-number-analysis-pack-tier-2-71c207fe -d '<json body>'
```

Example prompt: Run a tier-2 number analysis on the value 42 and tell me what the result is.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call numeric analysis at the tier-2 level using the ONE Engine x402 micropayment infrastructure on Base. Suitable for autonomous agents that need deterministic computation on a single numeric value without provisioning subscriptions or API keys.

## Known failure modes

- Missing or non-numeric 'value' field causes validation error
- Payment not settled via x402 results in 402 Payment Required response
- Invalid USDC payment on Base network causes transaction rejection
- Malformed request body returns 400 Bad Request
- Network timeout from Cloudflare Workers runtime

## How this service works

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

## Output

Returns a JSON object containing a 'tier' field (value: 2) and a 'result' field with tier-dependent analytical output for the submitted numeric value.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "value": {
   "type": "number"
  }
 }
}
```

## 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-number-analysis-pack-tier-2-71c207fe/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)