Introducing ArqZero

We built ArqZero because every AI coding tool we used had the same problem: they generate code without following engineering methodology. Ask Claude Code to "add authentication" and it writes code. It doesn't plan first. It doesn't write tests first. It doesn't verify its work before claiming done.

ArqZero is different. It has 42 structured capabilities — real multi-step engineering protocols for TDD, debugging, code review, migration, incident response, and more. Each capability is 8-10 imperative steps that the agent follows precisely.

Verification gates

The feature we're most proud of: verification gates. When ArqZero activates a capability that has a verification gate (testing, security review, refactoring), it cannot claim the task is done until it completes the verification steps. Run the tests. Check the coverage. Confirm no regressions.

No other coding agent has this. Claude Code, Cursor, Continue — they all rely on the model's judgment about when work is complete. ArqZero enforces it structurally.

Bring your own AI

ArqZero works with any OpenAI-compatible LLM provider. Fireworks, OpenAI, Anthropic (via proxy), Together, Groq, or local Ollama. Your API key, your choice, your data stays on your machine.

We ship with two built-in models: Enso (GLM-4.7, 400B, our default) and PRIMUS (GLM-5, latest). Auto-routing upgrades to PRIMUS for architecture and planning tasks. Subagents run on Enso to save cost.

Free to start

Install and start using ArqZero in 30 seconds. No account required.

The free tier includes 9 tools, 10 capabilities, and 50 messages per day. Pro ($12/mo) unlocks all 18 tools, all 42 capabilities with verification gates, subagent dispatch, cross-session memory, and unlimited messages.

What's next

We're shipping the Anthropic native adapter next (direct Claude API, not just OpenAI-compatible), followed by a VS Code extension, and team features for shared memory and settings. The core is open-source — audit the code, verify our no-telemetry claim, build on top of it.

— prana, creator of ArqZero