Open source alternative to Semrush and Ahrefs

OpenSEO is an SEO tool for the people. If tools like Semrush or Ahrefs are too expensive or bloated, OpenSEO is a pay-as-you-go alternative that you actually control.

All-in-one SEO tool for you and your AI agent.

Connect with any agent like Claude Code, OpenClaw or Hermes. We have pre-built skills, but you can build your own to tailor OpenSEO to your needs.

Try OpenSEO for free on our website. If you want to support the project, a hosted subscription is $10/month.

openseo.so

• Best in class MCP and AI Skills.
• Modern, simple UI.
  • Focused workflows instead of a bloated, complex SEO suite.
• No subscriptions.
  • Bring your own DataForSEO API key and pay only for what you use.
• Fork and vibe code your own custom tool.

• Keyword research
• Rank tracking
• Competitor Insights
• Backlinks
• Site Audits
• AI Visibility

OpenSEO exposes an MCP server so AI agents like Claude Code, OpenClaw, and Hermes can use your SEO data directly. Agent Skills are reusable workflows that guide your agent through SEO tasks using the MCP.

• Set up ChatGPT web or desktop (works on Free and paid ChatGPT plans)
• Set up Codex
• Set up OpenSEO MCP
• Set up OpenSEO Agent Skills

OpenSEO supports two self-hosting paths:

• Simple: Docker (Best for testing it out) - For personal use on your own machine. See docs/SELF_HOSTING_DOCKER.md.
  • Unless you already are self-hosting other apps and are confident doing so, we recommend self-hosting with Cloudflare as opposed to Railway, Coolify or Dokploy.
  • We plan to make it simpler to host on those platforms in the next few months.
• Recommended: Cloudflare - For internet-facing self-hosting across multiple devices or with your team (works on the free plan). See docs/SELF_HOSTING_CLOUDFLARE.md.

Either way, you need a DataForSEO API key to get SEO data. See docs/DATAFORSEO_API_KEY.md.

OpenSEO needs a DataForSEO API key so that you can get SEO data. You pay them directly when self hosting.

See openseo.so/pricing

When you self host, your costs will be slightly lower than the estimates on our website. The way the hosted service makes money is by charging 28% extra for every request we make to DataForSEO.

See docs/LOCAL_DEVELOPMENT.md.

Creating clear issues is the best way to contribute.

Read more here: docs/CONTRIBUTING.md

We have this skill: /simple-issue-description which helps.

npx skills add every-app/open-seo --skill simple-issue-description

Join Discord to chat: Discord

Follow along for updates:

• Follow on X: https://x.com/bensenescu
• Sign up for the mailing list on our website: openseo.so