> ## Documentation Index
> Fetch the complete documentation index at: https://docs.v3code.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Bring your own keys (BYOK)

> Use your own provider API keys in the editor.

V3Code is BYOK-friendly: point it at your own model provider keys and it runs against them directly. Your keys live locally and only the calls you make go out — see [Privacy](/account/privacy).

## When you need a key

* **Free Auto router** requires your own **Anthropic API key**. Free Auto rides Anthropic's stack to route between Haiku, Sonnet, Opus, and Fable, so it needs your Anthropic key set. See [Models overview](/models/overview).
* **Any provider you want to run yourself** — set the key and use that model directly instead of hosted credits.

## Run models locally

V3Code runs local models right in the editor — fully offline, free, and private, with nothing leaving your machine.

* **Ollama** — point V3Code at your running Ollama and it lists your installed models to pick from. (If a call fails, it's usually because Ollama is powered off.)
* **Built-in local inference** — V3Code can download and run models itself, with no separate server to set up. Models are stored locally and run inside the editor.

Local models pair naturally with the [semantic index](/editor/semantic-index), which already runs its embeddings on-device — so you can work with a fully local setup end to end.

## Hosted vs. BYOK

* **Hosted (paid plans)** — V3Code runs inference for you on its own models and credits; nothing to set up. See [Plans](/models/plans-and-trials) and [Token wallet](/models/token-wallet).
* **BYOK** — you supply the key and pay your provider directly. Good if you already have provider credit or want full control of the model.