> Index of every Falcon docs page, for assistants: https://falcon.com/docs/llms.txt

# Add a model key

On Model providers, Your keys connects your own account with a model provider. The provider bills you. A working key's models are turned on under Add models.

Open **Connections**, then **Model providers**, then the **Your keys** tab.

## Your keys

**Your own model keys** connects your own account with a model provider. The provider bills you directly, and the usage still shows in your reports and limits.

- Enter the key for that provider and choose **Test and save**.
- A saved key says the key was saved.
- **The provider refused this key. Replace it; until then its models use their fallback, if one is set.**

**The models behind each working key are turned on under Add models.** Open the **Add models** tab and turn those models on. Each model is one row there, even when more than one key lists it. Agents choose only from models the company has turned on. See [Add models](https://falcon.com/docs/add-models). Which route a model uses is the **Runs through** column. See [Runs through](https://falcon.com/docs/runs-through).

## Related

- [Add models](https://falcon.com/docs/add-models)
- [Runs through](https://falcon.com/docs/runs-through)
- [Model rules](https://falcon.com/docs/model-rules)
- [Connections](https://falcon.com/docs/connections)