Open Source Alternatives to OpenRouter

An AI gateway that provides a single unified interface for accessing multiple large language models from various providers. The platform allows developers to integrate different models into their applications using a standardized API, which eliminates the need to manage separate accounts and API keys for each individual provider. It features a model discovery tool and a dedicated chat interface for testing and comparing different LLMs in real time. The service is designed for developers and organizations seeking a centralized way to route requests to various AI models based on specific criteria such as cost, performance, or unique capabilities. It functions as a routing layer between the application and the model providers to simplify the deployment of AI features. The platform supports a wide array of open and closed source models.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to OpenRouter give you an option you fully own. Run them on your own server or desktop, so your data stays under your control. This page lists 3 open source alternatives to OpenRouter. The most popular are Manifest, AntigravityManager and LLM Gateway. Most use the MIT or CC-BY-NC-SA-4.0 license, and 2 offer an official Docker image.