Catervas tools library

changedetection.io

Website monitoring tool that tracks price changes, restocks, and content updates with AI-powered alerts and summaries.

Type: Free · Open source
Monthly cost: $0 + ~$10/mo hosting (estimate)
License: Apache-2.0 (permissive)
Setup: Needs a tech helper
AI features: Generally available
Trust: Not verified yet
Official site: https://changedetection.io

AI capabilities

AI-powered change detection with LLM integration (OpenAI, Gemini, Anthropic, Ollama), AI change summaries, plain-English alert rules

Open source

Code: https://github.com/dgtlmoon/changedetection.io
GitHub stars: 35572
Latest release: 2026-11-05
Hosting: SaaS subscription ($8.99/month), self-hosted open-source

Trust checks

Admin-verified listing: Not checked · Not yet checked by our team
License verified: Pass · Apache-2.0 (permissive)
Active maintenance: Pass · Last release this month
No open critical security advisories: Pass · No open critical advisories (19 published, all patched or lower severity)
Privacy and data policy: Not checked · Not checked yet
Company or foundation backing: Not checked · GitHub owner: dgtlmoon

Problems it helps with

Rising costs make fast, accurate estimates and margins hard: Monitors competitor and supplier websites for price changes and product availability to help with accurate cost estimation and margin management
Underpricing, slow estimates and lowball competition: Tracks competitor pricing and market rates to help avoid underpricing and stay competitive

Data as JSON: /api/tools/changedetection-io · Compare tools: /compare · llms.txt

Information, not professional advice. Rankings can't be bought.