---
title: "Premium Zone Lookup"
method: POST
path: "/api/v1/cross/f3-hydrocarbon/premium/zone-lookup"
tags: ["F3HydrocarbonReservoir"]
---

# Premium Zone Lookup

`POST /api/v1/cross/f3-hydrocarbon/premium/zone-lookup`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/cross/f3-hydrocarbon/premium/zone-lookup`
- Auth: none declared

Premium tier endpoint: explicit per-zone match diagnostic.

Returns whether the requested (lat, lon) falls within a Premium
override zone, the basin fallback, AND the final Archie tuple
F3 would use. Useful for operator audit when verifying that
per-zone calibration is engaging.

## Request body

- CrossPhysicsF3HydrocarbonReservoirMonitorRouterFeaturesRequest
  - `lat` number, required
  - `lon` number, required

## Response `200`

Successful Response

- object

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/deepmapai/apis/deepmap-ai.md) · [All operations](https://skmtc.dev/deepmapai/apis/deepmap-ai/llms.txt) · [OpenAPI document](https://skmtc.dev/deepmapai/apis/deepmap-ai/revisions/dab995d977d0?raw)