Best API for SillyTavern: uncensored models, setup and costs (2026)
Which API to use with SillyTavern for uncensored roleplay: setup in four steps, model picks, real per-message costs, and fixes for common connection errors.
Short answer
SillyTavern is free; the model comes from the API you connect. Unrestricted AI works as a Chat Completion source with base URL https://tryunrestrictedai.com/v1, 17 uncensored and abliterated models, and per-key spending caps. A typical 1,500-token roleplay turn with a 300-token reply on venice-uncensored-role-play costs about $0.0027 (checked 9 Nov 2026).
Connect in four steps
- Create an API key in the console.
- Base URL:
https://tryunrestrictedai.com/v1(or the full/v1/chat/completionsURL where an app asks for it). - Model:
venice-uncensored-role-playfor characters,venice-uncensored-1-2for general use, or any ID from the catalog. - Paste the key, save, and send a test message.
In SillyTavern
Open API Connections, set the API to Chat Completion, choose Custom (OpenAI-compatible) as the source, enter the base URL (no /chat/completions) and key, pick a model from the list, and click Test Message. Full walkthrough: SillyTavern custom endpoint guide.
Cost per message
Cost = input tokens × input price + output tokens × output price. For a 1,500-token prompt and a 300-token reply:
| Model | Per turn | Per 1,000 turns |
|---|---|---|
venice-uncensored-role-play ($1 / $4) | $0.0027 | $2.70 |
venice-uncensored-1-2 ($1 / $2) | $0.0021 | $2.10 |
nano-llama-3.3-70b-instruct-abliterated ($1.40 / $2) | $0.0027 | $2.70 |
Common errors
- 401: the key is wrong or has a space. Create a new one in the console.
- Unknown model error: the model ID is misspelled; copy it from the catalog.
- Context too long: most models take 32,768 tokens; trim the card or lower the context slider.
- 402: available credit or the key’s budget is too low.
FAQ
Where do I get an API key?
Create one in the console. The base URL is https://tryunrestrictedai.com/v1 and model IDs are listed in the catalog.
Is there a free tier?
Yes: 50 chat messages a day on a verified account. Plans start at $19/month and include the same amount in usage.
Do I need to be 18?
Yes. Our terms require users to be at least 18.