A free SEO tool MCP (Model Control Protocol) service based on Ahrefs data. Includes features such as backlinks, keyword ideas, and more.
Listed on its own since 2026-09-25. Until then it was part of iflow-mcp-cnych-seo-mcp, where its earlier checks remain.
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"seo-mcp-2","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Attributed to the source that supplied each field. Treated as claims, not facts.
# SEO MCP A free SEO tool MCP (Model Control Protocol) service based on Ahrefs data. Includes features such as backlinks, keyword ideas, and more. [中文版](README_CN.md) ## Overview This service provides APIs to retrieve SEO data for websites. It handles the entire process, including captcha solving, authentication, and fetching data from Ahrefs. > This MCP service is for learning purposes only. Please do not abuse it, or you will bear the consequences. This project was inspired by the `@GoFei Community`. For more information about this MCP service, please refer to [Claude MCP SEO MCP Introduction](https://www.claudemcp.com/servers/seo-mcp). ## Features - 🔍 Retrieve backlink data for any domain - 🔎 Get keyword ideas and SEO suggestions - 🔒 Automatically solve captchas using CapSolver - 💾 Signature caching to reduce API calls - 🚀 Fast and efficient data retrieval - 🧹 Simplified output providing the most relevant SEO information ## Installation ### Prerequisites - Python 3.10 or higher - CapSolver account and API key (register [here](https://dashboard.capsolver.com/passport/register?inviteCode=1dTH7WQSfHD0)) - `pip` or `uv` installed (on macOS, you may need to install with `brew install uv`) ### Install from PyPI ```bash pip install seo-mcp ``` Or use `uv`: ```bash uv pip install seo-mcp ``` ### Manual Installation 1. Clone the repository: ```bash git clone https://github.com/cnych/seo-mcp.git cd seo-mcp ``` 2. Install dependencies using pip or uv: ```bash pip install -e . # or uv pip install -e . ``` 3. Set the CapSolver API key: ```bash export CAPSOLVER_API_KEY="your-capsolver-api-key" ``` ## Usage ### Running the service You can run the service in several ways: #### Install in Claude Desktop To install this service and interact with it immediately in Claude Desktop: ```bash fastmcp install src/seo_mcp/server.py ``` #### Use MCP Inspector for testing For development and testing: ```bash fastmcp d…
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