| # Free AI APIs | |
| There are APIs offering free/free-trial access to AI APIs via reverse proxy. | |
| Here is a well-maintained public list of [Free AI APIs](https://github.com/NovaOSS/free-ai-apis) that may or may not be compatible with LibreChat | |
| ### [OpenRouter](https://openrouter.ai/) ⇆ (preferred) | |
| While not completely free, you get free trial credits when you [sign up to OpenRouter](https://openrouter.ai/), a legitimate proxy service to a multitude of LLMs, both closed and open source, including: | |
| - OpenAI models (great if you are barred from their API for whatever reason) | |
| - Anthropic Claude models (same as above) | |
| - Meta's Llama models | |
| - pygmalionai/mythalion-13b | |
| - and many more open source models. Newer integrations are usually discounted, too! | |
| OpenRouter is so great, I decided to integrate it to the project as a standalone feature. | |
| **Setup:** | |
| - Signup to [OpenRouter](https://openrouter.ai/) and create a key. You should name it and set a limit as well. | |
| - Set the environment variable `OPENROUTER_API_KEY` in your .env file to the key you just created. | |
| - Restart your LibreChat server and use the OpenAI or Plugins endpoints. | |
| **Notes:** | |
| - [TODO] **In the future, you will be able to set up OpenRouter from the frontend as well.** | |
| - This will override the official OpenAI API or your reverse proxy settings for both Plugins and OpenAI. | |
| - On initial setup, you may need to refresh your page twice to see all their supported models populate automatically. | |
| - Plugins: Functions Agent works with OpenRouter when using OpenAI models. | |
| - Plugins: Turn functions off to try plugins with non-OpenAI models (ChatGPT plugins will not work and others may not work as expected). | |
| - Plugins: Make sure `PLUGINS_USE_AZURE` is not set in your .env file when wanting to use OpenRouter and you have Azure configured. | |
| > ⚠️ OpenRouter is in a category of its own, and is highly recommended over the "free" services below. NagaAI and other 'free' API proxies tend to have intermittent issues, data leaks, and/or problems with the guidelines of the platforms they advertise on. Use the below at your own risk. | |
| ### NagaAI | |
| Since NagaAI works with LibreChat, and offers Llama2 along with OpenAI models, let's start with that one: [NagaAI](https://t.me/chimera_ai) | |
| > ⚠️ Never trust 3rd parties. Use at your own risk of privacy loss. Your data may be used for AI training at best or for nefarious reasons at worst; this is true in all cases, even with official endpoints: never give an LLM sensitive/identifying information. If something is free, you are the product. If errors arise, they are more likely to be due to the 3rd party, and not this project, as I test the official endpoints first and foremost. | |
| You will get your API key from the discord server. The instructions are pretty clear when you join so I won't repeat them. | |
| Once you have the API key, you should adjust your .env file like this: | |
| ```bash | |
| ########################## | |
| # OpenAI Endpoint: | |
| ########################## | |
| OPENAI_API_KEY=your-naga-ai-api-key | |
| # Reverse proxy settings for OpenAI: | |
| OPENAI_REVERSE_PROXY=https://api.naga.ac/v1/chat/completions | |
| # OPENAI_MODELS=gpt-3.5-turbo,gpt-3.5-turbo-16k,gpt-3.5-turbo-0301,text-davinci-003,gpt-4,gpt-4-0314,gpt-4-0613 | |
| ``` | |
| **Note:** The `OPENAI_MODELS` variable is commented out so that the server can fetch nagaai/api/v1/models for all available models. Uncomment and adjust if you wish to specify which exact models you want to use. | |
| It's worth noting that not all models listed by their API will work, with or without this project. The exact URL may also change, just make sure you include `/v1/chat/completions` in the reverse proxy URL if it ever changes. | |
| You can set `OPENAI_API_KEY=user_provided` if you would like the user to add their own NagaAI API key, just be sure you specify the models with `OPENAI_MODELS` in this case since they won't be able to be fetched without an admin set API key. | |
| ## That's it! You're all set. 🎉 | |
| ### Here's me using Llama2 via NagaAI | |
|  | |
| ### Plugins also work with this reverse proxy (OpenAI models). [More info on plugins here](https://docs.librechat.ai/features/plugins/introduction.html) | |
|  | |
| --- | |
| >⚠️ Note: If you're having trouble, before creating a new issue, please search for similar ones on our [#issues thread on our discord](https://discord.gg/weqZFtD9C4) or our [troubleshooting discussion](https://github.com/danny-avila/LibreChat/discussions/categories/troubleshooting) on our Discussions page. If you don't find a relevant issue, feel free to create a new one and provide as much detail as possible. | |