Open-source SEO tools you can run yourself, read every line of, and hand to your AI agent
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Pricing model
Open source
Freemium
Pricing
Hosted app: free, all features unlimited. Self-hosted: free, open source under MIT licence. Search data from YepAPI: paid per lookup. Examples: keyword overview $0.47–$0.57, keyword ideas $0.07–$0.25, SERP checker $0.25–$0.26, rank check $0.02–$0.10, backlink checker $0.30–$0.34. New YepAPI accounts
Pay-as-you-go API model: API credit top-ups from $5, $20 or $100. Link Network subscription: $49/month or $470/year. Force indexing uses separate URL credits with quote-based pricing.
Key features
Keyword research with difficulty, volume and top 10 results
SERP checker for any location with desktop and mobile options
Rank tracking to top 20, 50 or 100 by country, city or coordinates
Backlink checker with monthly link history
AI visibility tracking across 120+ AI models with web search
Local rank checker with geo-grid maps
MCP server with 76 tools for AI agents
Google Search Console integration
Self-hosting with Docker on your own server
Live Google and Bing search results
Keyword search volume and CPC data
Backlink and referring domain analysis
Google rank tracking for keywords
On-page and technical SEO audits
Google Maps rankings
AI visibility tracking
Free Google Search Console integration
OAuth and API key authentication
Integration with Claude, Cursor and ChatGPT
What makes it different
MIT licensed open-source code you can read and modify completely
Self-hosted option keeps all your data on your own server
Pay per lookup with spending limits controlled by you
AI agents have spending ceilings to prevent overspending
Pay-as-you-go pricing with no subscription required
Direct integration with AI agents like Claude and ChatGPT
Free Google Search Console and Bing data access
Live real-time SEO data instead of estimates
Multiple MCP servers and REST API with same pricing
OpenSEO
CrakSEO