Open-source SEO tools you can run yourself, read every line of, and hand to your AI agent
Find local businesses and prove why they need your services with website audits and white-label reports
Stage
Not given
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Founded
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Based in
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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
Free: 5 searches/month, 3 audits/month. Solo: $49/month (monthly) or $39/month (annual). Pro: $119/month (monthly) or $95/month (annual). Agency: $199/month (monthly) or $159/month (annual). Single reports: $19 per report or $39 for three reports.
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
Find local businesses by trade and city with public listing data
Measure websites against published standards for speed, security, SEO and accessibility
White-label reports with your name, logo and color
Recheck fixes to verify improvements worked
Client portal with score over time and progress tracking
AI visibility readiness: check if ChatGPT and other engines can read and cite the site
Rank findings by service type: web design, SEO, security or reputation
REST API and webhooks for starting audits from your own code
Team collaboration with owners, admins and members
Schedule recurring audits and monitoring with change alerts
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
Combines business discovery with website auditing in one tool, unlike separate tools that only scan sites you already know about
Reports ranked by what the agency sells rather than showing the same findings to all users
Measures readiness for AI answers and tracks whether ChatGPT mentions the business
White-label with client portal included from Pro plan, replacing need for multiple tools
Built for client conversations with accessible reports and evidence for every finding, not for technical SEO analysis
OpenSEO
SiteAssay