Mira
What it is
Mira is an open-source code reviewer for pull and merge requests. It indexes repositories to bring project context into reviews, then posts inline comments with severity and confidence, along with walkthroughs and summaries. On GitHub, reviewers can use one-click suggestions. Its security analysis combines model-based review with secret scanning and OSV checks for packages added or upgraded in a pull request. Mira can also turn rejected comments and recurring feedback on merged requests into review rules.
Mira supports GitHub, GitLab, and Forgejo, including Codeberg; Bitbucket support is planned. It runs as a self-hosted Docker image, with indexes stored in SQLite or Postgres. The maker says it sends no data or telemetry to its infrastructure. The free plan includes all features and has no paid tier or license key, but users pay model-provider costs directly through OpenRouter. Mira is licensed under Apache 2.0. For production, the maker recommends a webhook secret, an admin password, and TLS.
For and against
For
- Indexes project context beyond the diff
- Comments include severity and confidence
- Combines model review with secret and OSV checks
- Free plan includes all features
- Supports GitHub, GitLab, and Forgejo
Against
- Requires self-hosted deployment
- LLM provider costs are paid directly by users
- Bitbucket support is planned, not current
The verdict
Mira combines contextual code review, security checks, and configurable review rules in a self-hosted package. It is free to use, though model-provider costs remain separate and deployment is the operator’s responsibility.
Who it suits
Mira suits teams that want automated pull-request reviews on GitHub, GitLab, or Forgejo and can operate a self-hosted service. It may also suit teams that want to maintain review rules from reviewer feedback.
Plans and prices
Self-hosted Mira
All features included · no paid tier or license key · LLM provider costs are paid directly by the user
Read 2 Oct 2026 · docs.miracode.ai
On the record
- Code context
- Mira indexes repositories and uses project context to review changes beyond the diff.docs.miracode.ai · read 2 Oct 2026
- Deployment
- Mira is self-hosted only, distributed as a Docker image, and can use SQLite or Postgres.docs.miracode.ai · read 2 Oct 2026
- Integrations
- Mira supports GitHub, GitLab, and Forgejo, including Codeberg; Bitbucket is described as planned.docs.miracode.ai · read 2 Oct 2026
- Learning
- Mira can synthesize rules from rejected comments and recurring feedback on merged pull requests.docs.miracode.ai · read 2 Oct 2026
- License
- The source is available under the Apache 2.0 license.docs.miracode.ai · read 2 Oct 2026
- Model providers
- Mira routes requests through OpenRouter, letting users choose from providers including Anthropic, OpenAI, Google, and DeepSeek.docs.miracode.ai · read 2 Oct 2026
- Notable limitation
- The docs say Bitbucket support is on the roadmap rather than currently supported.docs.miracode.ai · read 2 Oct 2026
- 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.docs.miracode.ai · read 2 Oct 2026
- Product
- Mira is an open-source AI code reviewer that reviews pull and merge requests and posts inline comments and walkthroughs.docs.miracode.ai · read 2 Oct 2026
- Review findings
- Review comments include severity and confidence, and Mira can provide a pull request walkthrough, summary, and one-click GitHub suggestions.docs.miracode.ai · read 2 Oct 2026
- Security features
- Mira combines model-based security review with secret scanning and OSV checks for packages added or upgraded in a pull request.docs.miracode.ai · read 2 Oct 2026
- Security setup
- The maker recommends configuring a webhook secret, setting an admin password, and placing Mira behind TLS for production.docs.miracode.ai · read 2 Oct 2026
- Support
- The docs direct users to Discord for questions, feature requests, and community discussion.docs.miracode.ai · read 2 Oct 2026
