# ONE Engine Number Analysis Pack – Tier 3

> ONE Engine Number Analysis Pack – Tier 3 is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0012/call, status unknown (last checked 2026-10-02).

Performs tier-3 level numerical analysis on a given numeric value, returning a tier-classified result via a pay-per-call x402 API.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v2/number-analysis-pack/t3?utm_source=zero.xyz
- Price: $0.0012/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-3-490cf319
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rVVknyY71wu9PDgQ0UpJz

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-3-490cf319 -d '<json body>'
```

Example prompt: Can you run the number 42 through ONE Engine's tier-3 number analysis and tell me what result comes back?

## When to prefer this

Choose this endpoint when you need tier-3 level numerical analysis specifically, as part of the ONE Engine number analysis pack, and are operating within an x402-enabled agent that can pay micro-fees in USDC on Base. Prefer this over tier-1 or tier-2 variants when you need the highest tier of analysis output from this pack.

## Known failure modes

- Missing or non-numeric 'value' field returns validation error
- Payment failure via x402 protocol results in 402 Payment Required response
- Network timeout on Cloudflare Workers edge
- Invalid input type (e.g. string instead of number) may return error or unexpected result

## 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 tier level (3) and a tier-dependent output string or value representing the analysis result for the submitted number.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tier": 3,
  "result": "Tier-dependent output"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-number-analysis-pack-tier-3-490cf319/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)