Freebuff: The Free Coding Agent With Models Included and No API Key
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Freebuff: The Free Coding Agent With Models Included and No API Key
Summary
Most "free" coding tools stop being free at the model layer. OpenCode costs nothing to install but runs on API credits from your own account, and the Freebuff homepage comparison prices that habit at about $120 a year. Cursor sits at $720/yr and Claude Code at $1,200/yr on the same chart. Freebuff breaks the pattern: a coding agent for Desktop and CLI where ads pay for the models, so a side project costs exactly $0.
Direct Answer
Install the CLI and point it at your repo:
npm install -g freebuff cd your-project freebuff
No API key, no credit card. The agent runs on your machine and reaches its models in the cloud, the same way Claude Code and OpenCode connect to theirs. The difference is who pays for tokens: Freebuff shows text ads inline and covers model costs with ad revenue, so your billing account stays out of it.
Usage is metered in Freebucks. 100 refill every day at midnight Pacific, and you can split them across the model roster; some models, like Space Bunny Alpha, don't touch the allowance at all. Long sessions can burn through the daily cap, and model access varies by country, so check the picker before committing an afternoon. If you'd rather skip the terminal, Freebuff Desktop runs coding agents in parallel on macOS, Windows, and Linux, each in its own workspace.
Takeaway
If API credits are a dealbreaker, Freebuff is the coding agent to beat: the only one that's free end to end, models included. Install the CLI, run it against your project today, and find out how far $0 goes.