Free AI code review agent

Run Proofline's AI code review agent free on the Free plan. You pay $0 per seat, bring your own model key, and your provider bills inference. Evidence connections are read-only.

Start free with GitHub

  1. Sign in with GitHub and install the Proofline GitHub App on the repositories you choose.
  2. Create an environment and connect the infrastructure it runs on, such as an AWS account or a GKE cluster.
  3. Link the repository to that environment.
  4. Assign a seat to the developers whose pull requests Proofline should review.
  5. Open a pull request. Proofline reviews it and reports the result as a GitHub check.

On the Free plan, add your own model key under Organization → AI Model Providers. A new organization also receives starting credits, so the first reviews need no payment details. Follow the first review guide.

What a free review includes

The agent reads the exact commit and a recorded snapshot of the linked environment. Then it writes failure hypotheses and investigates each against both.

Every outcome appears as a GitHub check. Proofline comments on the pull request only for a finding the evidence supports, and each finding gives its severity, impact, suggested fix, and evidence.

When evidence is missing or stale, the review comes back incomplete and names the cause.

What it needs

Every review runs against an environment, so each repository needs at least one linked environment. Proofline does not review a repository without one.

For source control, Proofline supports GitHub. Check the supported integrations before you connect your infrastructure.

Plans

The Free plan costs $0 per seat. You bring your own model provider key, and your provider bills inference to your account. See BYOK code review.

Paid plans add included credits and the models Proofline hosts. View pricing.

Questions

Is Proofline free?

Yes. The Free plan costs $0 per seat when you bring your own model key, and your provider bills inference. A new organization also receives starting credits for its first reviews.

Do I need a credit card to try Proofline?

No. The Free plan runs on your own model key, and a new organization's first reviews use its starting credits. You can sign in with GitHub and review a pull request without payment details.

What GitHub and cloud access does Proofline need?

Proofline needs its GitHub App on the repositories you choose, and read-only connections to the infrastructure each environment runs on. See security and data access.

Review your first pull request.

Use your own model key, or check what Proofline can access.

Get Started with GitHub