Sita

Sita is an open-source codebase documentation and context tool for developers and engineering teams. It is built to keep documentation fresh, help new teammates understand a system more quickly, and provide agents with the exact files and functions to change.

The product clones and parses a repository using AST parsing and symbol resolution to extract functions, types, classes, and variables, then unifies cross-references across languages with SCIP. It builds a directed dependency graph sorted from dependencies to dependents, generates documentation in topological order, and writes docs for each file or definition covering purpose, dependencies, and usage. Sita also renders the docs in a minimal React app with Markdown and React Flow graphs, auto-refreshes on pushes to main, and uses incremental parsing with Merkle tree/hash diffing so only changed parts update. Martin, its agent, navigates repositories, summarizes context, pinpoints exact files and functions to change, and searches in parallel with citations.

It is described as agent-ready and MCP-first, with support named for Codex, Claude Code, Cursor, Cline, Warp, Amp, Jules, Factory, RooCode, Aider, Gemini CLI, Kilo Code, OpenCode, Phoenix, and Zed, plus anything else that supports MCP. The page also says it can be used with an editor via MCP and that it is open source locally or on-prem for business. Pricing shown includes a free self-hosted tier at $0, a managed business offering on waitlist, and an enterprise tier with SOC 2 compliance, on-prem or VPC deployment, SSO/SAML, roles, priority support, and custom SLAs.