Source: https://seerepo.com/r/Arize-ai/phoenix/built Markdown source: https://seerepo.com/r/Arize-ai/phoenix/built.md Description: phoenix is a TypeScript repo built with FastAPI, starlette, fastmcp-slim, graphql-core, strawberry-graphql, and 5 more. It stores its data in SQLite. # What is phoenix built with? phoenix is a TypeScript repo built with FastAPI, starlette, fastmcp-slim, graphql-core, strawberry-graphql, and 5 more. It stores its data in SQLite, reaches it with SQLAlchemy, sqlglot, and alembic, uses AI through openinference-semantic-conventions, pydantic-ai-slim, openinference-instrumentation, ai, @arizeai/openinference-semantic-conventions, and 2 more, makes its content with linkify-it-py, myst-parser, jinja2, pystache, streamdown, and 3 more, validates its data with Pydantic, jsonschema, Zod, and @hookform/resolvers, is tested with Vitest, @playwright/test, vitest-canvas-mock, ink-testing-library, OpenTelemetry, and 1 more, deploys with opentelemetry-semantic-conventions, opentelemetry-api, and psutil, and uses aiosqlite and pyarrow. It has 1,011,392 written lines, with 1,083 test files. Read on November 11, 2026, at commit 5a33185. Repository: https://github.com/Arize-ai/phoenix ## Frontend (/) ### Styles - **pydata-sphinx-theme** - **sphinx-design** ## Backend (/) ### The base - **[FastAPI](https://seerepo.com/uses/fastapi)**: 42 files - **[starlette](https://seerepo.com/uses/starlette)**: 39 files ### Data - **[aiosqlite](https://seerepo.com/uses/aiosqlite)** - **[pyarrow](https://seerepo.com/uses/pyarrow)**: 5 files - **[SQLite](https://seerepo.com/uses/sqlite)**: 2 files · [src/phoenix/db/engines.py, line 11](https://github.com/Arize-ai/phoenix/blob/5a3318534df5aa235221b58e5aa55210001394c2/src/phoenix/db/engines.py#L11) ### Data access - **[SQLAlchemy](https://seerepo.com/uses/sqlalchemy)**: 222 files - **[sqlglot](https://seerepo.com/uses/sqlglot)**: 4 files - **[alembic](https://seerepo.com/uses/alembic)**: 1 file ### AI - **openinference-semantic-conventions** - **pydantic-ai-slim** - **openinference-instrumentation**: 15 files ## Support (/) ### The base - **fastmcp-slim** - **graphql-core** - **strawberry-graphql** - **[uvicorn](https://seerepo.com/uses/uvicorn)**: 2 files ### Content - **linkify-it-py** - **[myst-parser](https://seerepo.com/uses/myst-parser)** - **[jinja2](https://seerepo.com/uses/jinja2)**: 6 files - **pystache**: 1 file ### Validation - **[Pydantic](https://seerepo.com/uses/pydantic)**: 93 files - **[jsonschema](https://seerepo.com/uses/jsonschema)**: 1 file ### Testing - **Vitest**: 1 file ### Deploy - **[opentelemetry-semantic-conventions](https://seerepo.com/uses/opentelemetry-semantic-conventions)** - **opentelemetry-api**: 7 files - **[psutil](https://seerepo.com/uses/psutil)**: 2 files ### Tools - **Sphinx** - **sphinx-autosummary-accessors** - **typing-extensions**: 215 files ### Other - **certifi** - **pypistats** - **python-multipart** - **s** - **pandas**: 29 files - **NumPy**: 15 files - **httpx**: 14 files - **cachetools**: 10 files - **aioitertools**: 9 files - **OpenTelemetry**: 8 files - **httpx2**: 7 files - **wrapt**: 5 files - **grpcio**: 3 files - **jsonpath-ng**: 2 files - **pyyaml**: 2 files - **requests**: 2 files - **tqdm**: 2 files ## Frontend (js/app) ### The base - **[React](https://seerepo.com/uses/react)**: 806 files · [in js/app/package.json](https://github.com/Arize-ai/phoenix/blob/5a3318534df5aa235221b58e5aa55210001394c2/js/app/package.json) - **react-relay**: 356 files - **[React Router](https://seerepo.com/uses/react-router)**: 165 files - **[Vite](https://seerepo.com/uses/vite)**: 1 file · [in js/app/package.json](https://github.com/Arize-ai/phoenix/blob/5a3318534df5aa235221b58e5aa55210001394c2/js/app/package.json) ### Styles - **[@emotion/react](https://seerepo.com/uses/emotion-react)**: 515 files - **polished**: 4 files - **@uiw/codemirror-themes**: 1 file ### Interface - **[react-aria-components](https://seerepo.com/uses/react-aria-components)**: 152 files - **[React Hook Form](https://seerepo.com/uses/react-hook-form)**: 55 files - **[react-aria](https://seerepo.com/uses/react-aria)**: 54 files - **[TanStack](https://seerepo.com/uses/tanstack)**: 45 files - **[recharts](https://seerepo.com/uses/recharts)**: 32 files - **[CodeMirror](https://seerepo.com/uses/codemirror)**: 29 files - **[react-resizable-panels](https://seerepo.com/uses/react-resizable-panels)**: 27 files - **[react-hotkeys-hook](https://seerepo.com/uses/react-hotkeys-hook)**: 16 files - **[@uiw/react-codemirror](https://seerepo.com/uses/uiw-react-codemirror)**: 15 files - **[dnd-kit](https://seerepo.com/uses/dnd-kit)**: 6 files - **[motion](https://seerepo.com/uses/motion)**: 6 files - **json-render**: 4 files - **react-stately**: 4 files - **[@lezer/highlight](https://seerepo.com/uses/lezer-highlight)**: 3 files - **@paper-design/shaders-react**: 2 files - **[D3](https://seerepo.com/uses/d3)**: 2 files - **[react-error-boundary](https://seerepo.com/uses/react-error-boundary)**: 2 files - **[@streamdown/code](https://seerepo.com/uses/streamdown-code)**: 1 file - **codemirror-json-schema**: 1 file - **[react-resizable](https://seerepo.com/uses/react-resizable)**: 1 file - **[use-stick-to-bottom](https://seerepo.com/uses/use-stick-to-bottom)**: 1 file ## Backend (js/app) ### AI - **[ai](https://seerepo.com/uses/ai)**: 34 files - **@arizeai/openinference-semantic-conventions**: 12 files - **[@ai-sdk/react](https://seerepo.com/uses/ai-sdk-react)**: 7 files ### Services - **[OpenAI](https://seerepo.com/uses/openai)**: 1 file · [js/app/src/components/generative/serverLanguageModel.ts, line 45](https://github.com/Arize-ai/phoenix/blob/5a3318534df5aa235221b58e5aa55210001394c2/js/app/src/components/generative/serverLanguageModel.ts#L45) ## Support (js/app) ### Content - **[streamdown](https://seerepo.com/uses/streamdown)**: 2 files - **[mustache](https://seerepo.com/uses/mustache)**: 1 file ### Validation - **[Zod](https://seerepo.com/uses/zod)**: 100 files - **[@hookform/resolvers](https://seerepo.com/uses/hookform-resolvers)**: 1 file ### Testing - **Vitest**: 165 files - **@playwright/test**: 35 files - **vitest-canvas-mock**: 1 file ### Tools - **Storybook**: 1 file ### Other - **tiny-invariant**: 66 files - **Relay**: 40 files - **zustand**: 26 files - **Lodash**: 23 files - **@internationalized/date**: 15 files - **date-fns**: 9 files - **copy-to-clipboard**: 7 files - **@pierre/diffs**: 4 files - **clsx**: 2 files - **cron-parser**: 2 files - **d3-format**: 2 files - **@apollo/client**: 1 file - **@lezer/lr**: 1 file - **cronstrue**: 1 file - **openapi-fetch**: 1 file ## Frontend (js/packages/phoenix-cli) ### The base - **[React](https://seerepo.com/uses/react)**: 3 files · [in js/app/package.json](https://github.com/Arize-ai/phoenix/blob/5a3318534df5aa235221b58e5aa55210001394c2/js/app/package.json) ### Interface - **[@clack/prompts](https://seerepo.com/uses/clack-prompts)**: 3 files - **[ink](https://seerepo.com/uses/ink)**: 3 files ## Backend (js/packages/phoenix-cli) ### AI - **[ai](https://seerepo.com/uses/ai)**: 3 files ## Support (js/packages/phoenix-cli) ### Content - **[marked](https://seerepo.com/uses/marked)**: 1 file - **marked-terminal**: 1 file ### Validation - **[Zod](https://seerepo.com/uses/zod)**: 2 files ### Testing - **Vitest**: 75 files - **ink-testing-library**: 1 file ### Tools - **commander**: 22 files - **ignore**: 1 file ### Other - **cross-spawn**: 1 file ## Backend (js/packages/phoenix-client) ### AI - **@arizeai/openinference-semantic-conventions**: 1 file - **[ai](https://seerepo.com/uses/ai)**: 1 file ## Support (js/packages/phoenix-client) ### Validation - **[Zod](https://seerepo.com/uses/zod)**: 29 files ### Testing - **Vitest**: 71 files - **OpenTelemetry**: 2 files ### Other - **tiny-invariant**: 33 files - **openapi-fetch**: 3 files - **[@opentelemetry/api](https://seerepo.com/uses/opentelemetry-api)**: 1 file - **async**: 1 file ## Support (js/packages/phoenix-config) ### Testing - **Vitest**: 4 files ## Backend (js/packages/phoenix-otel) ### AI - **@arizeai/openinference-semantic-conventions**: 2 files ## Support (js/packages/phoenix-otel) ### Testing - **Vitest**: 7 files ### Deploy - **OpenTelemetry**: 4 files ### Other - **[opentelemetry](https://seerepo.com/uses/opentelemetry)**: 4 files ## Support (js/packages/phoenix-testing) ### Testing - **msw**: 3 files - **Vitest**: 2 files ## Other repos with a similar stack - [Significant-Gravitas/AutoGPT](https://seerepo.com/r/Significant-Gravitas/AutoGPT/built): FastAPI, pyarrow, uvicorn, React, OpenAI, SQLAlchemy, jinja2, Pydantic, jsonschema, psutil, React Hook Form, recharts, motion, use-stick-to-bottom, ai, @ai-sdk/react, streamdown, Zod, @hookform/resolvers · [Compare](https://seerepo.com/compare/Arize-ai/phoenix/vs/Significant-Gravitas/AutoGPT) - [bytedance/deer-flow](https://seerepo.com/r/bytedance/deer-flow/built): FastAPI, starlette, aiosqlite, SQLite, uvicorn, React, SQLAlchemy, alembic, jsonschema, CodeMirror, react-resizable-panels, @uiw/react-codemirror, motion, @streamdown/code, use-stick-to-bottom, ai, streamdown, Zod · [Compare](https://seerepo.com/compare/Arize-ai/phoenix/vs/bytedance/deer-flow) - [CherryHQ/cherry-studio](https://seerepo.com/r/CherryHQ/cherry-studio/built): SQLite, React, Vite, OpenAI, React Hook Form, TanStack, CodeMirror, react-resizable-panels, react-hotkeys-hook, @uiw/react-codemirror, dnd-kit, motion, @lezer/highlight, react-error-boundary, ai, streamdown, Zod, @hookform/resolvers · [Compare](https://seerepo.com/compare/Arize-ai/phoenix/vs/CherryHQ/cherry-studio) - [supabase/supabase](https://seerepo.com/r/supabase/supabase/built): React, React Router, Vite, OpenAI, React Hook Form, recharts, react-resizable-panels, dnd-kit, motion, D3, react-error-boundary, react-resizable, use-stick-to-bottom, ai, streamdown, Zod, @hookform/resolvers · [Compare](https://seerepo.com/compare/Arize-ai/phoenix/vs/supabase/supabase) - [apache/superset](https://seerepo.com/r/apache/superset/built): starlette, pyarrow, fastmcp-slim, uvicorn, React, SQLAlchemy, sqlglot, alembic, jinja2, Pydantic, jsonschema, psutil, @emotion/react, D3, react-error-boundary, Zod, OpenTelemetry · [Compare](https://seerepo.com/compare/apache/superset/vs/Arize-ai/phoenix) - [apache/airflow](https://seerepo.com/r/apache/airflow/built): FastAPI, aiosqlite, pyarrow, SQLite, uvicorn, React, Vite, SQLAlchemy, sqlglot, alembic, pydantic-ai-slim, jinja2, Pydantic, jsonschema, psutil, React Hook Form, OpenTelemetry · [Compare](https://seerepo.com/compare/apache/airflow/vs/Arize-ai/phoenix) ## Frequently asked questions ### What language is phoenix written in? phoenix is written in TypeScript, with 1,011,392 written lines. ### What framework does phoenix use? phoenix is built with FastAPI, starlette, fastmcp-slim, graphql-core, strawberry-graphql, uvicorn, React, react-relay, React Router, and Vite. ### What database does phoenix use? phoenix stores its data in SQLite and reaches it with SQLAlchemy, sqlglot, and alembic. The proof: [src/phoenix/db/engines.py, line 11](https://github.com/Arize-ai/phoenix/blob/5a3318534df5aa235221b58e5aa55210001394c2/src/phoenix/db/engines.py#L11) ### Does phoenix use AI? Yes. phoenix uses AI through openinference-semantic-conventions, pydantic-ai-slim, openinference-instrumentation, ai, @arizeai/openinference-semantic-conventions, @ai-sdk/react, and OpenAI. ### What services does phoenix use? phoenix uses aiosqlite and pyarrow. ### Does phoenix have tests? Yes. phoenix has 1,083 test files and is tested with Vitest, @playwright/test, vitest-canvas-mock, ink-testing-library, OpenTelemetry, and msw. ### Which repos have a stack like phoenix's? The ones that share most of its stack: Significant-Gravitas/AutoGPT, bytedance/deer-flow, and CherryHQ/cherry-studio. ## What is your repo built with? Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.