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The AYCF Radar API — free for bots & AI agents

AYCF Radar exposes its Wizz All You Can Fly data through a free, open, no-key JSON API. Any bot, script, or AI assistant can call it directly — no sign-up, no token. It's designed to be agent-friendly, so you can plug it straight into ChatGPT, Claude, or your own tools.

Base URL: https://aycfradar.com/api · Docs for machines: /openapi.json (OpenAPI 3.1) · /llms.txt · /api (endpoint index)

Endpoints

Call	What it returns
`GET /api/graph`	Every city on the pass now + coordinates + its direct destinations. The best single call.
`GET /api/search?from=Budapest`	Direct routes (omit `to` for "everywhere from here").
`GET /api/flights?from=Budapest&to=London`	Real scheduled departure dates/times for a route.
`POST /api/flights-batch` `{"pairs":[["Budapest","London"],…]}`	Availability + dates for many routes in one call (up to 60).
`GET /api/connections?from=Tel%20Aviv&to=Barcelona&stops=2`	1- or 2-stop itineraries with layovers.
`GET /api/onward?from=Budapest&to=Dublin&days=30`	AYCF to a hub + a paid Ryanair leg onward.
`GET /api/status`	Current data window + freshness.

Cities are plain names (Budapest, Tel Aviv). CORS is open (*), so browser-side apps work too. Try one now:

curl "https://aycfradar.com/api/search?from=Budapest&to=London"

Connect it to a Custom GPT (ChatGPT)

A Custom GPT can call this API as an "Action" — this takes about two minutes and needs no key:

In ChatGPT, open Explore GPTs → Create (or edit an existing GPT), then the Configure tab.
Scroll to Actions → Create new action.
Click Import from URL and paste: https://aycfradar.com/openapi.json
Set Authentication to None.
Save. Your GPT can now query live AYCF data.

Then give your GPT instructions like: "You help plan Wizz All You Can Fly trips. Use the AYCF Radar actions to find live routes, times, and connections. Always remind the user that seats are confirmed only at booking on Wizz." Try asking it: "Where can I fly from Budapest on the AYCF pass this weekend?"

Use it with Claude or other agents

Claude and other tool-using assistants can read /llms.txt and call the endpoints directly — the API is plain REST over HTTPS with open CORS. If you're building with an agent framework, point it at /openapi.json for a full machine-readable contract, or just fetch the endpoints above.

Fair use

The API is free and rate-limited per IP to keep it healthy for everyone (generous limits; heavy endpoints like connections/onward are capped per minute). It serves publicly-published airline data for planning — please don't hammer it. If you need higher volume for a project, get in touch.

Open AYCF Radar →

Unofficial. Not affiliated with Wizz Air or Ryanair. Times are the published schedule; AYCF seats confirmed only at booking.