What is OpenSEO used for?

OpenSEO is an open-source, pay-as-you-go alternative to Ahrefs and Semrush for keyword research, rank tracking and site audits, with an MCP server for AI agents. It is a good fit for SEO research without an expensive subscription, letting AI agents analyze search data and custom SEO tooling built from a fork.

Is OpenSEO open source?

Yes. OpenSEO is open source under the MIT licence. Its source code is on GitHub at every-app/open-seo and is written mainly in TypeScript.

Yes. OpenSEO is open source, so the software itself is free to use. A managed cloud version is also available, with paid plans from $10 per month.

Can I self-host OpenSEO?

Yes. OpenSEO can be self-hosted on your own server or infrastructure.

What is OpenSEO an alternative to?

OpenSEO is an open-source alternative to Semrush, Ahrefs, SE Ranking and Ubersuggest.

Is OpenSEO actively maintained?

Yes. The most recent commit to OpenSEO was on 2 October 2026, and the latest release is v0.1.10, published on 30 September 2026. The project has 22k stars on GitHub.

OpenSEO: open-source alternative to Semrush, Ahrefs

About OpenSEO

OpenSEO is an open-source SEO tool presented as an alternative to Semrush and Ahrefs for people who find those suites too expensive or bloated. It focuses on a handful of workflows rather than a sprawling feature set, and uses a pay-as-you-go model: you supply your own DataForSEO API key and are billed only for the data you consume.

The core workflows are keyword research, rank tracking, competitor analysis, backlink checks, site audits and AI visibility. OpenSEO exposes an MCP server so agents like Claude Code, OpenClaw and Hermes can work with your SEO data directly, and it provides prebuilt agent skills that you can extend. Topics also mention Google Search Console MCP, SEO automation and audits. The interface is described as modern and simple.

The code is MIT licensed and written in TypeScript, and you can fork it to build your own custom tool. A hosted version can be tried for free at openseo.so, and the README lists a hosted subscription at $10 per month for people who want to support the project. It suits freelancers, small agencies and founders who want SEO data without a heavy subscription.

Key features

Keyword research workflows
Rank tracking and competitor insights
Backlink analysis and checks
Site audits and AI visibility checks
MCP server and agent skills
Bring your own DataForSEO API key

Good fit for

→SEO research without an expensive subscription
→Letting AI agents analyze search data
→Custom SEO tooling built from a fork

Built with: TypeScript
Tags: seo; keyword-research; backlinks; rank-tracking; mcp; ahrefs-alternative; semrush-alternative; ai-agents; typescript

OpenSEO: questions and answers

What is OpenSEO used for?: OpenSEO is an open-source, pay-as-you-go alternative to Ahrefs and Semrush for keyword research, rank tracking and site audits, with an MCP server for AI agents. It is a good fit for SEO research without an expensive subscription, letting AI agents analyze search data and custom SEO tooling built from a fork.
Is OpenSEO open source?: Yes. OpenSEO is open source under the MIT licence. Its source code is on GitHub at every-app/open-seo and is written mainly in TypeScript.
Is OpenSEO free?: Yes. OpenSEO is open source, so the software itself is free to use. A managed cloud version is also available, with paid plans from $10 per month.
Can I self-host OpenSEO?: Yes. OpenSEO can be self-hosted on your own server or infrastructure.
What is OpenSEO an alternative to?: OpenSEO is an open-source alternative to Semrush, Ahrefs, SE Ranking and Ubersuggest.
Is OpenSEO actively maintained?: Yes. The most recent commit to OpenSEO was on 2 October 2026, and the latest release is v0.1.10, published on 30 September 2026. The project has 22k stars on GitHub.