# NexusAPI Geo Isoline

> NexusAPI Geo Isoline is a paid API for AI agents from nexus-api-peach-nine.vercel.app, paid per call via x402, $0.063111/call, status unknown (last checked 2026-09-15).

Generates geographic isoline (isochrone/isodistance) polygons representing reachable areas from a point within a given time or distance threshold

## Facts

- Endpoint: POST https://nexus-api-peach-nine.vercel.app/api/geo/isoline
- Price: $0.063111/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nexusapi-geo-isoline-98b0f07f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ob4SY-aEo0w0mVzDwOIXm

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 nexusapi-geo-isoline-98b0f07f -d '<json body>'
```

Example prompt: Generate an isoline showing all areas reachable within 30 minutes of driving from downtown Chicago — give me the polygon boundary I can overlay on a map.

## When to prefer this

Use this endpoint when you need to compute reachable-area polygons (isolines, isochrones, or isodistance contours) for mapping, logistics coverage analysis, real estate search radius, or travel-time visualization — especially when paying per-call via USDC on Base with no API key setup required.

## Known failure modes

- Invalid or unparseable location input returns an error
- Unsupported travel mode causes a bad request response
- Threshold value out of acceptable range returns validation error
- Geocoding failure if address cannot be resolved to coordinates
- Timeout for complex routing calculations in dense urban areas

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns a GeoJSON polygon or multipolygon representing the geographic boundary of the reachable area (isochrone or isodistance contour) from the specified origin point, based on the given travel mode and threshold.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nexusapi-geo-isoline-98b0f07f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nexus-api-peach-nine.vercel.app](https://www.zero.xyz/host/nexus-api-peach-nine.vercel.app/llms.txt)