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OpenSEO

A pay-as-you-go SEO tool for researching keywords and tracking search rankings, which your AI assistant can also use.

Fast-rising

What it does

OpenSEO helps you improve how a website shows up in search engines (SEO, search engine optimisation). Its makers describe it as an open alternative to paid tools like Semrush and Ahrefs.

It covers keyword research, rank tracking, competitor insights, backlinks (other sites linking to yours), site audits and how visible your site is in AI answers.

It also connects to AI assistants such as ChatGPT, Claude Code or Codex through MCP, so they can use your SEO data, and it comes with ready-made skills. Instead of a subscription, you bring your own key for DataForSEO, a paid data service, and pay for what you use. A hosted version is also offered.

Who it's for

Website owners, marketers and small businesses who want SEO data without a big subscription.

Can I use it without coding?

With some setup. The hosted version runs in your browser. Self-hosting uses Docker or Cloudflare, and either way needs a DataForSEO key. New to this? Start here.

Can I run it?

Cost
Free, with optional paid extrasThe open-source version is free; the makers also sell a hosted or pro version.
Runs on
Web browser, Cloud
Computer
An ordinary computer is fine
Privacy
Sends what you give it to an online service
API key
Needed. An API key is a password-like code from an online AI service. What's that?

Try it

  1. Try the hosted version on the OpenSEO website, or self-host it with Docker or Cloudflare.
  2. Get a DataForSEO API key, which you pay for only as you use it.
  3. Optionally connect your AI assistant using the ready-made skills.
Official download page

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page or the official download page above. Copies with similar names exist for many popular projects.
  • License (MIT): Very permissive: free to use, change and share, including for business.
  • Keep your API key private. Never paste it into websites or share it, and set a spending limit with the AI service.
  • What you type or upload is sent to an online service. Avoid sharing private or sensitive information.
  • More on staying safe