Codemod
Free tierCompiler-aware code migration and maintenance platform for enterprise scale
Free tier available·Technical·API available·Open source
Key strengths
Compiler-aware code transformations for high accuracyScales across millions of lines of code with up to 90% AI cost reductionCross-language support for any framework, library, or SDKOrchestration layer for coordinating migrations across teams and repos2M+ codemod runs with adoption by leading frameworks
Free tier + paid plans
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Developer & Integration Documentation
CLI
npx codemod ai
Launches the Codemod AI assistant. Accepts natural language prompts to analyze blast radius, run transformations, and orchestrate campaigns.
MCP Server
Codemod provides a free, open-source Model Context Protocol (MCP) server that exposes compiler-aware skills to any MCP-compatible AI agent (Claude, Cursor, Codex, etc.). The MCP server gives agents:
- Blast radius analysis — identify all files/modules affected by a dependency change.
- Transformation execution — apply codemods reliably across large codebases.
- Campaign orchestration — create and track multi-repo, multi-team migration tasks.
Key Concepts
- Compiler-aware transforms: Unlike regex or LLM-only approaches, Codemod uses AST-level analysis to guarantee semantic correctness of changes.
- Codemod Registry: A community and enterprise registry of reusable transformation scripts covering package upgrades, security patches, i18n, compliance, and end-of-life migrations.
- Orchestration layer: Central dashboard to assign PRs, set deadlines, and monitor campaign health across teams and repositories.
Integrations
- Works alongside Claude, Codex, and Cursor as specialized tooling for horizontal AI agents.
- GitHub integration for automated pull request generation.
- Slack for team notifications and workflow coordination.