Mira
miracode.ai
What it is
Mira is a free, open-source AI code reviewer for pull and merge requests. It indexes repositories, using project context beyond the changed diff when assessing changes. Review results include inline comments with severity and confidence, plus a pull-request walkthrough and summary. GitHub users can apply one-click suggestions. Security analysis combines model-based review with secret scanning and OSV checks for packages added or upgraded in a request. Mira can learn custom review rules from rejected comments and recurring feedback on merged requests. It supports GitHub, GitLab, Forgejo, and Codeberg; Bitbucket support is planned. Operators deploy Mira themselves as a Docker image, storing indexes in SQLite or Postgres. Requests are routed through OpenRouter, with provider choices including Anthropic, OpenAI, Google, and DeepSeek. The maker says self-hosted deployments send no data or telemetry to its infrastructure. The source is available under Apache 2.0. The free plan includes all features; users pay model-provider costs directly.
Spec sheet
- Product
- Mira is an open-source AI code reviewer that reviews pull and merge requests and posts inline comments and walkthroughs.Read 2 Oct 2026 · docs.miracode.ai
- Deployment
- Mira is self-hosted only, distributed as a Docker image, and can use SQLite or Postgres.Read 2 Oct 2026 · docs.miracode.ai
- Integrations
- Mira supports GitHub, GitLab, and Forgejo, including Codeberg; Bitbucket is described as planned.Read 2 Oct 2026 · docs.miracode.ai
- Privacy
- The maker says self-hosted Mira sends no data or telemetry to its infrastructure and stores indexes in the operator's SQLite or Postgres database.Read 2 Oct 2026 · docs.miracode.ai
- Support
- The docs direct users to Discord for questions, feature requests, and community discussion.Read 2 Oct 2026 · docs.miracode.ai
- License
- The source is available under the Apache 2.0 license.Read 2 Oct 2026 · docs.miracode.ai
- Code context
- Mira indexes repositories and uses project context to review changes beyond the diff.Read 2 Oct 2026 · docs.miracode.ai
- Learning
- Mira can synthesize rules from rejected comments and recurring feedback on merged pull requests.Read 2 Oct 2026 · docs.miracode.ai
- Model providers
- Mira routes requests through OpenRouter, letting users choose from providers including Anthropic, OpenAI, Google, and DeepSeek.Read 2 Oct 2026 · docs.miracode.ai
- Notable limitation
- The docs say Bitbucket support is on the roadmap rather than currently supported.Read 2 Oct 2026 · docs.miracode.ai
- Review findings
- Review comments include severity and confidence, and Mira can provide a pull request walkthrough, summary, and one-click GitHub suggestions.Read 2 Oct 2026 · docs.miracode.ai
- Security features
- Mira combines model-based security review with secret scanning and OSV checks for packages added or upgraded in a pull request.Read 2 Oct 2026 · docs.miracode.ai
- Security setup
- The maker recommends configuring a webhook secret, setting an admin password, and placing Mira behind TLS for production.Read 2 Oct 2026 · docs.miracode.ai
Plans and prices
Strong points and limits
Strong points
- Uses repository context beyond the diff
- Includes severity and confidence in findings
- Combines review with secret and OSV checks
- Supports custom rules from review feedback
- All features included on free plan
Limits
- Self-hosted deployment is required
- Bitbucket support is only planned
- Users pay LLM provider costs directly
- Production setup recommends webhook secret, password, and TLS
Who it suits
Mira suits teams reviewing pull or merge requests on GitHub, GitLab, Forgejo, or Codeberg that want self-hosted analysis and configurable review rules. It is also suited to operators who can run Docker with SQLite or Postgres.
Verdict
Mira combines contextual code review, security checks, walkthroughs, and learning rules in a self-hosted package. Its free licensing is broad, but deployment and model-provider costs remain the operator’s responsibility.
Where Specifiction places it
- Sega Master System Emulators#10 of 257.5
- AI Code Review Tools#30 of 487.5
- Pull Request Automation Tools#20 of 297.3
- Code review software#42 of 517.5