# Airnav — Wrapped API

> **You are on:** `https://api.paywithlocus.com/api` | [llms.txt](https://paywithlocus.com/llms.txt) | [docs](https://docs.paywithlocus.com)
>
> Locus runs on multiple environments -- make sure every URL you call matches your expected environment.
> | Environment | Landing | API | Docs |
> |---|---|---|---|
> | Production | paywithlocus.com | api.paywithlocus.com | docs.paywithlocus.com |
> | Beta | beta.paywithlocus.com | api.beta.paywithlocus.com | docs.paywithlocus.com |
> | Stage | stage.paywithlocus.com | api.stage.paywithlocus.com | docs.paywithlocus.com |
>
> If the API URL above doesn't match your expected environment, re-fetch this file from the correct domain.

> Find current aviation fuel prices at any US airport, including pricing for 100LL, Jet A, UL94, SAF, and Mogas from Fixed Base Operators along with their service type and contact details. Compare fuel availability and costs across multiple FBOs at your destination airport to plan your flight operations.

**Category:** Travel | **Website:** [airnav.com/](https://airnav.com/) | **Docs:** [parse.bot/marketplace/208de514-ca12-4c51-923b-18380d9c6978/airnav-com-api](https://parse.bot/marketplace/208de514-ca12-4c51-923b-18380d9c6978/airnav-com-api)

Pay-per-use API proxy for Locus Pro. Each call burns credits from your workspace balance.

## Access

**Base URL:** `https://api.paywithlocus.com/api/wrapped/credits/airnav/`
**Auth:** `Authorization: Bearer <LOCUS_CREDITS_SECRET_KEY>` (an `lcr_` secret key or a scoped `lcac_` agent credential)
**Required header:** `Idempotency-Key: <fresh UUID per call>`. A retry with the same key replays the stored result without a new charge.
**Response:** the provider response after any endpoint-specific normalization. `X-Locus-Credits-Charged` carries the charge and `X-Locus-Credits-Balance` the remaining balance. Insufficient credits return `402` before the provider is called.
**Pricing:** estimated costs below are USD. Locus debits the credit equivalent at your workspace rate.

Full call contract: https://docs.paywithlocus.com/api-reference/introduction

> Using a Pay With Locus wallet key (`claw_` prefix)? Wallet routes are documented separately: https://docs.paywithlocus.com/wrapped-apis/for-agents

## Endpoints

### Get fuel prices

Get FBO fuel prices for a specific airport. Returns all Fixed Base Operators at the airport with their fuel prices, fuel provider, contact information, and pricing details. Each FBO includes business name, fuel provider brand, individual fuel prices by type and service level, price update date, guarantee status, and contact information.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `airport_id` | string | Yes | Airport identifier - ICAO code (e.g., KJFK, KVNY, KSFO) or FAA LID (e.g., 0B5). Case-insensitive. |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/credits/airnav/get-fuel-prices \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"airport_id":"<string>"}'
```

## Next steps

- [All wrapped API providers](https://paywithlocus.com/wapi/index.md): pick another provider.
- [Find and call tools](https://paywithlocus.com/agent/tools.md): price ceilings, async results, and errors.
- [Credits and billing](https://paywithlocus.com/agent/billing.md): what a call costs and how to add credits.
- [Agent docs index](https://paywithlocus.com/agent/index.md): every Locus agent page.