Agentica

Agentica is an open-source AI coding assistant that works as an extension for popular code editors like VS Code, Cursor, and Windsurf. It gives developers a single interface to access multiple AI models, from free open-source options like Qwen and DeepSeek to premium models like Claude, GPT-5, and Gemini. You can use it completely free with daily request limits on open models, or subscribe to a paid plan that includes API credits for accessing frontier models at what they claim is wholesale cost.

What makes Agentica stand out is its open-source nature and flexibility. The entire codebase is available on GitHub, so developers can inspect, modify, or fork it. It also supports bringing your own API keys, meaning you can connect it to local AI setups like Ollama or LM Studio, or use your existing API keys from other providers. The tool ships updates weekly based on community feedback, which is unusually fast for development tools.

This tool is ideal for developers who want to experiment with different AI models without being locked into a single provider. It's particularly useful for those who already use local AI models and want a consistent interface, or for teams who need to standardize their AI coding assistant across different editors. The pricing model is straightforward, with a generous free tier and paid plans that include daily API credits rather than per-token billing.