eca

ECA is a free, open-source AI coding assistant that works with any editor and any LLM provider, offering a protocol-first approach to AI coding and a rich ecosystem of configuration and extensibility. It's designed for developers who want a seamless AI coding experience across different editors and LLMs. ECA's key differentiator is its ability to provide a unified AI coding experience across multiple editors and LLMs through a single configuration.

eca is best for . It sits in the Coding category and is a freemium option.

eca is listed as freemium. Check the official website for current, detailed pricing tiers.

eca scored 7.8 out of 10 in 2026, based on six weighted metrics: usefulness, quality, ease of use, value, reliability, and popularity.

Supports multiple editors, including VS Code, Emacs, Neovim, IntelliJ, and Desktop, making it a versatile tool for developers who work with different editors. Offers a range of features, including chat, rewrite, and completion, powered by LLMs, which can improve coding efficiency and accuracy. Provides a rich ecosystem of configuration and extensibility, including support for custom tools, agents, and subagents, which can be tailored to specific development needs.

May require some learning curve to fully utilize its features and configuration options, which can be overwhelming for new users. Depends on the quality and availability of LLMs, which can be a limitation if the LLMs are not well-maintained or have usage limits. May not be as polished or user-friendly as some commercial AI coding assistants, which can be a drawback for developers who prioritize ease of use.

eca is a solid, well-rounded option for . Its 7.8/10 score reflects dependable performance in the Coding category.