# Aggro Range Estimator

> Aggro Range Estimator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-30).

Calculates an NPC's detection radius after applying visibility and alertness modifiers to a base aggro range.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/aggro-range-calculator?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aggro-range-estimator-2c3c641e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y4F0E66DQczM24VA7tGMW

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 aggro-range-estimator-2c3c641e -d '<json body>'
```

Example prompt: What's the adjusted aggro range for an enemy with a base range of 25, visibility modifier of 0.6 due to fog, and an alertness level of 1.5 because they heard a noise?

## When to prefer this

Use this endpoint when you need a quick, parametric computation of NPC detection range in a game design or simulation context, particularly when visibility conditions (lighting, fog, cover) and alertness states need to be factored into the base aggro radius without implementing the formula yourself.

## Known failure modes

- Missing or non-numeric inputs may return a validation error
- Extreme modifier values (e.g. 0 or very large numbers) may produce edge-case results that need sanity-checking
- Network or payment authorization failure may prevent the call from completing

## How this service works

Aggro range estimator: Estimate detection radius after visibility and alertness modifiers.

## Output

Returns the estimated detection radius as a numerical value, representing the effective aggro range after the base range has been scaled by the visibility and alertness modifiers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "alertness": {
   "type": "number",
   "default": 1
  },
  "base_range": {
   "type": "number",
   "default": 20
  },
  "visibility": {
   "type": "number",
   "default": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aggro-range-estimator-2c3c641e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)