Skip to Content

MCP server for link building

LinkBuilder.com MCP Server: the guest post catalog inside Claude, ChatGPT and Cursor

Connect your AI assistant to LinkBuilder.com and ask for link building sites in plain words. It searches the catalog with your plan’s filters, compares prices from many marketplaces and saves the sites you pick to your projects.

Server address
https://api.linkbuilder.com/mcp
Connect your assistant Available on Professional and higher plans

Find tech blogs in the US with DR 50+ and organic traffic over 10k, guest post under $300. Add the best three to my “SaaS launch” project.

LinkBuilder.com · search_catalog

Found 41 sites. The best value by price per traffic:

SiteDR TrafficPrice
devtools-weekly.com6452k$190
cloudstack-blog.com5831k$140
startupnotes.io5518k$95

Added 3 sites to the white list of “SaaS launch”.

Works with the assistants you already use

Pick the app you use: each one connects in its own way, the address is the same.

Claude (claude.ai, desktop and mobile apps)

Your own account: add a custom connector

  1. Open Settings → Connectors (on claude.ai or in the desktop app).
  2. Click «Add custom connector», name it LinkBuilder and paste the server address: https://api.linkbuilder.com/mcp
  3. Click Add, then Connect: LinkBuilder.com opens, sign in and click Allow.
  4. In a chat, turn LinkBuilder on in the tools menu (the «+» or sliders button) and ask, e.g. «Find guest post sites for …».
  5. Connectors added on the web or desktop work in the Claude mobile app too.

Team or Enterprise plan: the owner adds it once

  1. An owner opens Organization settings → Connectors → Add custom connector and pastes https://api.linkbuilder.com/mcp
  2. Each member then opens Settings → Connectors, clicks Connect next to LinkBuilder and signs in with their own LinkBuilder.com account.
Claude Code (in the terminal)

Not the Claude app: Claude Code is the command-line tool for developers. Run in the terminal:

  1. Run the command below (add --scope user to use it in every project).
  2. Start Claude Code, type /mcp, choose linkbuilder and Authenticate: the browser opens LinkBuilder.com, sign in and click Allow.
claude mcp add --transport http linkbuilder https://api.linkbuilder.com/mcp
ChatGPT

A custom connector in developer mode (Plus, Pro, Business, Enterprise)

  1. Open Settings → Apps & Connectors → Advanced settings and turn on Developer mode.
  2. Back in Apps & Connectors click Create: name LinkBuilder, MCP server URL https://api.linkbuilder.com/mcp, authentication OAuth.
  3. Click Create, then sign in to LinkBuilder.com and click Allow.
  4. In a chat, choose Developer mode in the tools menu and turn LinkBuilder on.
Cursor

One click

  1. Click «Add to Cursor»: Cursor opens and asks to install the LinkBuilder server.
  2. Cursor asks you to sign in on first use: LinkBuilder.com opens, sign in and click Allow.
Add to Cursor

Or add it to mcp.json

  1. Open Cursor Settings → MCP → Add new MCP server, or edit ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (one project).
  2. Add the configuration below and save; sign in when Cursor asks.
{
    "mcpServers": {
        "linkbuilder": {
            "url": "https://api.linkbuilder.com/mcp"
        }
    }
}
VS Code (GitHub Copilot agent mode)

One click

  1. Click «Add to VS Code»: VS Code opens and installs the LinkBuilder server.
  2. Start the server when VS Code asks and sign in to LinkBuilder.com.
Add to VS Code

Or from the Command Palette or a file

  1. Command Palette → «MCP: Add Server» → HTTP, paste https://api.linkbuilder.com/mcp and name it linkbuilder.
  2. Or add the configuration below to .vscode/mcp.json (one project) or to your user settings.
  3. In Copilot Chat choose Agent mode; LinkBuilder tools appear in the tools list.
{
    "servers": {
        "linkbuilder": {
            "type": "http",
            "url": "https://api.linkbuilder.com/mcp"
        }
    }
}
Windsurf

Add it to mcp_config.json

  1. Open Windsurf Settings → Cascade → MCP servers → Manage → View raw config (~/.codeium/windsurf/mcp_config.json).
  2. Add the configuration below, save and refresh the servers; sign in when Windsurf asks.
{
    "mcpServers": {
        "linkbuilder": {
            "serverUrl": "https://api.linkbuilder.com/mcp"
        }
    }
}
Gemini CLI (in the terminal)

Run in the terminal:

  1. Run the command below.
  2. In Gemini CLI type /mcp auth linkbuilder: the browser opens LinkBuilder.com, sign in and click Allow.
gemini mcp add --transport http linkbuilder https://api.linkbuilder.com/mcp
Codex CLI (in the terminal)

Add it to ~/.codex/config.toml

  1. Add the configuration below to ~/.codex/config.toml.
  2. Run codex mcp login linkbuilder: the browser opens LinkBuilder.com, sign in and click Allow.
[mcp_servers.linkbuilder]
url = "https://api.linkbuilder.com/mcp"
Another MCP client

Any client with remote MCP servers

  1. Server address: https://api.linkbuilder.com/mcp (Streamable HTTP).
  2. Sign-in: OAuth 2.1 with dynamic client registration, the client opens LinkBuilder.com by itself. There is no API key to copy.
  3. Available on Professional and higher plans.

What your assistant can do with LinkBuilder.com

The assistant works with your own account: the same catalog, filters and limits as in the app.

  • Search the catalog

    Sites by niche, country, language, DR, traffic, domain zone, marketplace and price, sorted the way you ask.

  • Compare marketplace prices

    The best and median guest post price for each site and the sellers that offer it.

  • Work with projects

    List and create projects, use your saved filters, add sites to the white list or mark them as used.

  • Know your limits

    Ask what your plan includes and how much of it is left this month.

How to connect LinkBuilder.com to your AI assistant

  1. Add the server

    In your assistant, add a custom connector or MCP server with the address https://api.linkbuilder.com/mcp.

  2. Sign in and allow access

    The assistant opens LinkBuilder.com: sign in to your account and allow the connection on the consent screen.

  3. Ask in plain words

    Ask for sites, prices or your projects. The assistant picks the right LinkBuilder.com tool by itself.

Open the setup guide

Your account stays in your hands

  • Sign-in with OAuth: the assistant never sees your password.
  • No orders and no payments: the assistant can read the catalog and edit your projects, lists and filters, nothing more.
  • Your plan’s limits apply exactly as in the app.
  • Disconnect any assistant at any time on the MCP page of your account.

MCP is included in Professional and higher plans

Higher plans give the assistant more: more rows per search, more filters and projects, bigger lists.

Compare plans

LinkBuilder MCP server FAQ

Answers about connecting AI assistants to LinkBuilder.com.

Ready to Save Up to 70% on Guest Posts?

Transform your link-building strategy with LinkBuilder.com! Access the world's largest guest post marketplace, compare prices from top sellers, and unlock over 445,000+ unique websites across 140+ countries. Utilize our advanced filters to find the perfect platforms and supercharge your outreach. Try Now No credit card required
Don't miss out - create your free account now and start outperforming your competitors!