repocrunch

Analyze any public GitHub repository into structured JSON. No AI, no LLMs — fully deterministic.

Give it a repo, get back tech stack, dependencies, architecture, health metrics, and security signals in clean, consistent JSON. Use it as a Python library, CLI tool, REST API, or MCP server.

Requires Python 3.11+.

pip install repocrunch
repocrunch analyze fastapi/fastapi --pretty

That's it. Also works with uv:

uvx repocrunch analyze astral-sh/uv --pretty

git clone https://github.com/kimwwk/repocrunch.git
cd repocrunch
uv venv && uv pip install -e ".[all]"

Install just what you need:

uv pip install -e "."          # Library only (httpx + pydantic)
uv pip install -e ".[cli]"     # + CLI
uv pip install -e ".[api]"     # + REST API
uv pip install -e ".[mcp]"     # + MCP server
uv pip install -e ".[all]"     # Everything

Without a token you get 60 API calls/hour. With one, 5,000/hour. A token also lets you analyze private repositories you have access to.

export GITHUB_TOKEN=ghp_...

repocrunch analyze fastapi/fastapi --pretty          # Full analysis, pretty JSON
repocrunch analyze facebook/react -f tech_stack       # Single field
repocrunch analyze https://github.com/gin-gonic/gin   # Full URL works too
repocrunch serve                                       # Start REST API on :8000
repocrunch mcp                                         # Start MCP server (STDIO)

from repocrunch import analyze, analyze_sync

# Async
result = await analyze("fastapi/fastapi")

# Sync
result = analyze_sync("pallets/flask")

print(result.summary.stars)
print(result.tech_stack.framework)
print(result.model_dump_json(indent=2))

repocrunch serve

# Then:
curl "http://localhost:8000/analyze?repo=fastapi/fastapi" | python -m json.tool
curl "http