guide
Dify
A bot builder. The model is added as OpenAI-API-compatible.
Three fields. Copy, don’t type
url
https://cheapai.lol/v1
model
claude-opus-4.8
Do it in order. Don’t skip
Open Dify → Settings → Model Provider.
Find OpenAI-API-compatible and press Add Model.
Model Name: claude-opus-4.8. API Key: your full key. API endpoint URL: https://cheapai.lol/v1 (with /v1).
Leave the model context size as it is.
Save. Pick that model in your app and send a test message.
Check
Open chat in this app and type: hi. A reply means it’s wired correctly.
If it didn’t start
- “401 / unauthorized / invalid api key” — the key was not copied whole. It starts with sk- and has no space at either end.
- “model not found” / “named models unavailable” / model in red — the name must match exactly: claude-opus-4.8. Not “Opus 5”, not opus, not claude-3, not gpt-4.
- The app shows no models — reopen its settings page: the model list is served from our address and appears once the Base URL and key are right.
- “Connection error” / spinner and silence — wrong Base URL. Almost every app wants the address with a /v1 tail.
- “/v1/v1” in the error — the app appends /v1 itself. Drop the tail, leave the site address.
- It replied, then stopped — you ran out of tokens. The balance is in your dashboard. Topping up on FunPay from the same nick lands on the same key.