Acknowledgments

Karta uses open-source software maintained by people outside our company. We thank those maintainers and credit the tools and engineers that have helped us build Karta.

// development

Direct thanks

We use Claude Code and Codex to write and review code. Engineers on the AgentCore team have helped us diagnose platform issues.

Coding agent Anthropic Claude Code We use Claude Code to implement and review changes across the repository. Coding agent OpenAI Codex We use Codex for codebase-wide changes and release checks. Platform team AWS AgentCore team Engineers on the Amazon Bedrock AgentCore team have helped us diagnose platform issues.

// open source

Open-source software

These projects are part of Karta's product or build system. For machine-readable dependency inventories, see how Karta publishes SBOMs.

01 / 9 projects

Interface and chat

Libraries used in Karta's agent chat and web interface.

assistant-ui React components for Karta's agent chat. React Rendering and streamed conversation state in agent chat. Radix UI Accessible dialogs, menus, and tooltips. shadcn/ui Interface components used in agent chat. Tailwind CSS CSS utilities used by the console and agent chat. Lucide Icons used on karta.sh and in the product. PDF.js PDF rendering inside Karta's file preview. clsx Conditional class names throughout the chat interface. thinking-orbs The working-state animation used by Karta's agent chat.

02 / 5 projects

Web application

The main Rails application and its database.

Ruby on Rails The web application, accounts, billing, and releases. Hotwire Server-rendered interactions in the Rails app. Puma Web server for Karta's Rails app. PostgreSQL Database for product and account data. Devise Account authentication in the Rails app.

03 / 7 projects

Agent runtime

Python packages used by Karta's agent runtime.

FastAPI HTTP APIs for Karta's agent runtime. Pydantic Validation for runtime data and API requests. Uvicorn Application server for the Python runtime. LiteLLM Routes requests to model providers through one interface. Rich Terminal output and diagnostics. Typer Command-line interfaces for the Python runtime. Dulwich Git support for the Python runtime.

04 / 4 projects

Observability and charts

Libraries used for tracing and charts.

OpenTelemetry Distributed traces across Karta's Ruby, Python, and Go services. Apache ECharts Charts in the web app and on karta.sh. Chart.js Small charts in the web app. OpenPanel Optional cookieless, first-party product analytics.

05 / 5 projects

Tools we build with

Languages, build tools, and test runners used to develop Karta.

TypeScript Static types for Karta's JavaScript packages. Vite Development server and production build for agent chat. Vitest Unit tests for Karta's TypeScript packages. Playwright Browser tests for the website and web app. Ruff Formatting and static checks for the Python runtime.