MCP Server

The official Seltz MCP server enables native integrations with Claude Desktop, Cursor, VS Code, Windsurf, and other MCP-compatible AI tools.

Prerequisites

Seltz API key — Get one from the Console

Installation

Claude Code

Add the Seltz MCP server:

claude mcp add --transport http seltz https://mcp.seltz.ai/mcp

Run /mcp, click Seltz, and authenticate.
Enter your Seltz API key when prompted.

Codex

Add the Seltz MCP server:

codex mcp add seltz --url https://mcp.seltz.ai/mcp

Run /mcp, click Seltz, and authenticate.
Enter your Seltz API key when prompted.

Claude connector

Seltz is also listed in Claude’s official connector directory, so you can connect without entering a server URL manually. How to use it

In Claude, go to Settings → Connectors.
Find Seltz in the directory and click Connect.
Paste your Seltz API key. Generate one from the Console.
Ask Claude a question that needs current information. Claude calls the connector mid-conversation to ground its answer.

Web connectors require a paid Claude plan (Pro, Max, Team, or Enterprise).

What it exposes The connector wraps Seltz’s search endpoint, with access to all of Seltz’s indexes, and returns full documents rather than snippets so Claude can ground its answer directly. If Seltz isn’t listed in your directory yet, add it manually as a custom connector:

Add to Claude

Add Seltz as a custom connector

Click the button above or go to Settings → Connectors → Add custom connector.
Set the Name to Seltz and the Remote MCP server URL to:
https://mcp.seltz.ai/mcp
Click Add.
Click Connect and enter your Seltz API key when prompted.

Cursor

Add to Cursor

Install Seltz MCP server in Cursor

Or manually add to your Cursor configuration (.cursor/mcp.json):

{
  "mcpServers": {
    "seltz": {
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

VS Code

Add to VS Code

Install Seltz MCP server in VS Code

Or manually add to your VS Code settings (.vscode/mcp.json):

{
  "mcpServers": {
    "seltz": {
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Windsurf

Add the Seltz MCP server to your Windsurf configuration (~/.codeium/windsurf/mcp_config.json):

{
  "mcpServers": {
    "seltz": {
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Zed

Add the Seltz MCP server to your Zed settings (Settings → Edit Settings):

{
  "context_servers": {
    "seltz": {
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Gemini CLI

Add the Seltz MCP server to your Gemini CLI configuration (~/.gemini/settings.json):

{
  "mcpServers": {
    "seltz": {
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

v0 by Vercel

Select Prompt Tools → Add MCP.
Enter the URL:
https://mcp.seltz.ai/mcp

Warp

Go to Settings → MCP Servers → Add MCP Server and add:

{
  "seltz": {
    "url": "https://mcp.seltz.ai/mcp"
  }
}

Kiro

Add the Seltz MCP server to your Kiro configuration (~/.kiro/settings/mcp.json):

{
  "mcpServers": {
    "seltz": {
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Roo Code

Add to your Roo Code MCP configuration:

{
  "mcpServers": {
    "seltz": {
      "type": "streamable-http",
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

OpenCode

Add the Seltz MCP server to your OpenCode configuration (opencode.json):

{
  "mcpServers": {
    "seltz": {
      "url": "https://mcp.seltz.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Tools

search

Search using Seltz API. Returns relevant results for the given query. Parameters:

Parameter	Type	Required	Description
`query`	`string`	Yes	The search query string.
`max_results`	`integer`	No	Maximum number of results to return. Default: 10.

Getting Started

Web Tools

Data

Tutorials

Chat

Integrations

SDKs

Prerequisites

Installation

Claude Code

Codex

Claude connector

Add to Claude

Cursor

Add to Cursor

VS Code

Add to VS Code

Windsurf

Zed

Gemini CLI

v0 by Vercel

Warp

Kiro

Roo Code

OpenCode

Tools

search

​Prerequisites

​Installation

​Claude Code

​Codex

​Claude connector

Add to Claude

​Cursor

Add to Cursor

​VS Code

Add to VS Code

​Windsurf

​Zed

​Gemini CLI

​v0 by Vercel

​Warp

​Kiro

​Roo Code

​OpenCode

​Tools

​search

Prerequisites

Installation

Claude Code

Codex

Claude connector

Cursor

VS Code

Windsurf

Zed

Gemini CLI

v0 by Vercel

Warp

Kiro

Roo Code

OpenCode

Tools

search