# SignalDesk AI Geometry Bounding Box

> SignalDesk AI Geometry Bounding Box is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).

Computes the minimum bounding box (north/south/east/west) that encloses a given set of geographic coordinates

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/geometry/bounding-box?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-geometry-bounding-box-4cd39d5b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bFYgOHgwXfVTpinih1jJP

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 signaldesk-ai-geometry-bounding-box-4cd39d5b -d '<json body>'
```

Example prompt: Calculate the bounding box for these coordinates: (40.7128, -74.0060), (34.0522, -118.2437), (41.8781, -87.6298), (29.7604, -95.3698) — I need the north, south, east, and west extents to set a map viewport.

## When to prefer this

Use this endpoint when you need a fast, cheap ($0.001 USDC) server-side computation of a geographic bounding box from raw coordinate arrays — especially when you want to avoid implementing the antimeridian edge case yourself. Prefer this over client-side JS implementations when working in a server/agent context without a mapping library, or when you need a canonical, consistent bounding-box result for up to 1000 points in a single call.

## Known failure modes

- Fewer than 1 point supplied — request rejected due to minItems:1 constraint
- More than 1000 points supplied — request rejected due to maxItems:1000 constraint
- Latitude values outside -90 to 90 range — validation error
- Longitude values outside -180 to 180 range — validation error
- Payment not included or insufficient — 402 Payment Required response
- Malformed JSON body — 400 Bad Request
- Worker quota exhausted — 429 or 503 response

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

Returns a JSON object with four boundary values — north (max latitude), south (min latitude), east (max longitude), west (min longitude) — plus an antimeridian_optimised boolean indicating whether the bounding box was adjusted to handle the 180th meridian crossing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "points": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "lat",
     "lon"
    ],
    "properties": {
     "lat": {
      "type": "number",
      "maximum": 90,
      "minimum": -90,
      "description": "Latitude in decimal degrees."
     },
     "lon": {
      "type": "number",
      "maximum": 180,
      "minimum": -180,
      "description": "Longitude in decimal degrees."
     }
    },
    "additionalProperties": false
   },
   "maxItems": 1000,
   "minItems": 1,
   "description": "Coordinates."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "east": -8,
  "west": -9,
  "north": 40,
  "south": 38,
  "antimeridian_optimised": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-geometry-bounding-box-4cd39d5b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)