Source: https://seerepo.com/compare/datawhalechina/hello-agents/vs/dgtlmoon/changedetection.io
Markdown source: https://seerepo.com/compare/datawhalechina/hello-agents/vs/dgtlmoon/changedetection.io.md
Description: hello-agents and changedetection.io share 10 technologies: Flask, rank-bm25, lxml, openpyxl, feedparser, beautifulsoup4, jinja2, Pydantic, jsonschema, and loguru. Both are written in Python.

# hello-agents vs changedetection.io

hello-agents and changedetection.io share 10 technologies: Flask, rank-bm25, lxml, openpyxl, feedparser, beautifulsoup4, jinja2, Pydantic, jsonschema, and loguru. Both are written in Python.

- [datawhalechina/hello-agents](https://seerepo.com/r/datawhalechina/hello-agents): 📚 《从零开始构建智能体》——从零开始的智能体原理与实践教程
- [dgtlmoon/changedetection.io](https://seerepo.com/r/dgtlmoon/changedetection.io): Best and simplest tool for website change detection, web page monitoring, and website change alerts. Perfect for tracking content changes, price drops, restock alerts, and website defacement monitoring— MCP included! all for free or enjoy our SaaS plan!

## What they share and what sets them apart

- In common: Flask, rank-bm25, lxml, openpyxl, feedparser, beautifulsoup4, jinja2, Pydantic, jsonschema, loguru
- Only in hello-agents: FastAPI, uvicorn, aiosqlite, asyncpg, psycopg2-binary, Postgres, chromadb, Redis, SQLite, oracledb, pymilvus, OpenAI, Qdrant, Hugging Face, fastmcp, starlette, anyio, AIOHTTP, Streamlit, Vite, Vue, vue-router, React, react-router-dom, cycler, fonttools, contourpy, Plotly, Gradio, matplotlib, Rich, alembic, SQLAlchemy, bcrypt, accelerate, MCP, onnxruntime, peft, safetensors, tavily-python, tokenizers, torch, transformers, scikit-learn, sentence-transformers, tiktoken, datasets, langchain-openai, LangGraph, paddlenlp, spaCy, markdown, pdfminer.six, pypdf, python-docx, reportlab, xlrd, pdfplumber, pillow, pymupdf, annotated-types, email-validator, pydantic-core, OpenTelemetry, opentelemetry-exporter-otlp-proto-grpc, D3, katex, Tailwind CSS, markdown-it, vue-flow, Chart.js, vue-chartjs, highlight.js, dompurify, marked, react-markdown, Element, echarts, Leaflet, Mermaid, html2canvas, jspdf
- Only in changedetection.io: flask-cors, flask-restful, werkzeug, cryptography, flask-login, authlib, litellm, linkify-it-py, puremagic, segno, referencing, wtforms, flask-wtf, mcp-types, validators, psutil

## Side by side

| | hello-agents | changedetection.io |
|---|---|---|
| Size | 226,661 lines written, 1,212 code files | 108,039 lines written, 267 code files |
| Who writes it | 2.4% of its commits signed by AI. With Codex, Cursor, and Claude Code | 3.1% of its commits signed by AI. With Claude Code and GitHub Copilot |
| Activity | Last push October 13, 2026, 660 commits, 86,039 stars | Last push November 6, 2026, 2,674 commits, 35,598 stars |
| Tests | 97 test files. 6.9% of its code files have a test that imports them | 219 test files. 34.8% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, hello-agents or changedetection.io?

hello-agents, with 226,661 lines written; changedetection.io has 108,039.

The proof: [datawhalechina/hello-agents's code at commit 36f583c](https://github.com/datawhalechina/hello-agents/tree/36f583c233ea5cee4537ef93455702b55053af18)

### Which has more GitHub stars, hello-agents or changedetection.io?

hello-agents, with 86,039 stars; changedetection.io has 35,598.

The proof: [datawhalechina/hello-agents on GitHub](https://github.com/datawhalechina/hello-agents)

### Which has more tests, hello-agents or changedetection.io?

changedetection.io, with 219 test files; hello-agents has 97.

The proof: [dgtlmoon/changedetection.io's code at commit 09619ff](https://github.com/dgtlmoon/changedetection.io/tree/09619ffddb40300e6c09374a4f6aa9af8bab0c3d)

### Which was updated more recently, hello-agents or changedetection.io?

changedetection.io: its last push was on November 6, 2026, and hello-agents's on October 13, 2026.

The proof: [dgtlmoon/changedetection.io's commits on GitHub](https://github.com/dgtlmoon/changedetection.io/commits)

### Which has more commits signed by AI, hello-agents or changedetection.io?

changedetection.io: an AI signed 3.1% of its commits, with Claude Code and GitHub Copilot; in hello-agents, 2.4%.

The proof: [the commits each tool signed in dgtlmoon/changedetection.io](https://seerepo.com/r/dgtlmoon/changedetection.io/ai)

## Sources

- datawhalechina/hello-agents: Read on November 4, 2026, at commit 36f583c (https://github.com/datawhalechina/hello-agents/tree/36f583c233ea5cee4537ef93455702b55053af18)
- dgtlmoon/changedetection.io: Read on November 7, 2026, at commit 09619ff (https://github.com/dgtlmoon/changedetection.io/tree/09619ffddb40300e6c09374a4f6aa9af8bab0c3d)

## 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.