# ONE Engine Number Analysis Pack – Tier 8

> ONE Engine Number Analysis Pack – Tier 8 is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0075/call, status unknown (last checked 2026-10-02).

Performs a tier-8 numeric analysis on a given number value, returning a tier-dependent computed result via a pay-per-call x402 API.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v2/number-analysis-pack/t8?utm_source=zero.xyz
- Price: $0.0075/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-8-b88c2d3c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SGf1VeUQPzfQXZ0xWZOx-

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-8-b88c2d3c -d '<json body>'
```

Example prompt: Can you run a tier-8 number analysis on the value 42 and tell me what result comes back?

## When to prefer this

Choose this endpoint when you specifically need tier-8 numeric analysis from the ONE Engine number-analysis-pack, and you are operating in an x402 pay-per-call agent environment on Base. It is appropriate for lightweight, low-cost numeric computation tasks where a sub-cent per-call fee is acceptable and the agent manages micropayments automatically.

## Known failure modes

- Missing or invalid 'value' field returns a 400 or error response
- Non-numeric input may cause a validation error
- Payment failure via x402 protocol prevents call execution
- Cloudflare Worker timeout or 5xx error if the worker is unavailable
- Unexpected tier-dependent result if the input value is out of expected range

## How this service works

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

## Output

A JSON object containing the tier number (8) and a tier-dependent computed output string or value, e.g. {"tier": 8, "result": "Tier-dependent output"}.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tier": 8,
  "result": "Tier-dependent output"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-number-analysis-pack-tier-8-b88c2d3c/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)