Mira

Free plan Self-hostedWeb

What Mira is

Mira is an open-source AI code reviewer for pull and merge requests. It indexes repositories so reviews can draw on project context beyond the diff, then posts inline comments, walkthroughs, and summaries. Findings include severity and confidence, and GitHub users can apply one-click suggestions. Its security review combines model-based analysis with secret scanning and OSV checks for packages added or upgraded in a request. Mira can also synthesize review rules from rejected comments and recurring feedback on merged requests. It supports GitHub, GitLab, and Forgejo, including Codeberg; Bitbucket is planned rather than currently supported. Operators deploy it themselves as a Docker image and store indexes in SQLite or Postgres. Model requests route through OpenRouter, where users can choose providers including Anthropic, OpenAI, Google, and DeepSeek. The maker says self-hosted deployments send no data or telemetry to its infrastructure and keep indexes in the operator's database. The free plan includes all features and has no paid tier or license key, but users pay model-provider costs directly. Mira's source is licensed under Apache 2.0.

Who it suits

Mira suits teams that want to self-host AI reviews for pull or merge requests on supported code hosts. It requires operators to deploy and configure the service themselves.

What it does well

Uses indexed project context beyond the diff
Includes secret scanning and OSV package checks
Supports GitHub, GitLab, and Forgejo
Free plan includes all features

What to know first

Self-hosting is the only deployment option
Bitbucket support is planned, not available
Users pay model-provider costs directly

Plans

Plan	Billed and limits	Price
Self-hosted Mira	All features included · no paid tier or license key · LLM provider costs are paid directly by the user	Free

As miracode.ai lists them, read 2 Oct 2026. The maker's own page has the final word.

Getting started

Visit the Mira website and obtain its Docker image.
Deploy Mira on your own infrastructure.
Choose SQLite or Postgres for index storage.
Configure an OpenRouter model provider.
Connect GitHub, GitLab, or Forgejo, including Codeberg.
For production, configure a webhook secret and admin password, then place Mira behind TLS.

Verdict

Mira offers contextual reviews, security checks, and feedback-derived rules for teams prepared to self-host. Confirm that your code host is supported and account for direct model-provider costs.

Questions

Is Mira free?

Yes. The self-hosted plan costs nothing and includes all features, with no paid tier or license key. Users pay LLM provider costs directly.

Which code hosts does it support?

Mira supports GitHub, GitLab, and Forgejo, including Codeberg. Bitbucket is planned.

Can I run Mira myself?

Yes. It is self-hosted only, distributed as a Docker image, and can use SQLite or Postgres.

Is Mira open source?

Yes. Its source is available under the Apache 2.0 license.

Which model providers can I use?

Mira routes requests through OpenRouter, where users can choose providers including Anthropic, OpenAI, Google, and DeepSeek.

Where can I get support?

Mira's documentation directs users to Discord for questions, feature requests, and community discussion.

Facts from Mira's own pages

Code context: Mira indexes repositories and uses project context to review changes beyond the diff. · docs.miracode.ai, 2 Oct 2026
Deployment: Mira is self-hosted only, distributed as a Docker image, and can use SQLite or Postgres. · docs.miracode.ai, 2 Oct 2026
Integrations: Mira supports GitHub, GitLab, and Forgejo, including Codeberg; Bitbucket is described as planned. · docs.miracode.ai, 2 Oct 2026
Learning: Mira can synthesize rules from rejected comments and recurring feedback on merged pull requests. · docs.miracode.ai, 2 Oct 2026
License: The source is available under the Apache 2.0 license. · docs.miracode.ai, 2 Oct 2026
Model providers: Mira routes requests through OpenRouter, letting users choose from providers including Anthropic, OpenAI, Google, and DeepSeek. · docs.miracode.ai, 2 Oct 2026
Notable limitation: The docs say Bitbucket support is on the roadmap rather than currently supported. · docs.miracode.ai, 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, 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, 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, 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, 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, 2 Oct 2026
Support: The docs direct users to Discord for questions, feature requests, and community discussion. · docs.miracode.ai, 2 Oct 2026