Quackr MCP MCP server

An official MCP server provided by Quackr that allows AI agents to provision virtual phone numbers and receive SMS messages for verification purposes. It enables autonomous account creation, 2FA handling, and automated testing by exposing tools like purchase-number, check-sms, and list-active-numbers via the Model Context Protocol.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

OAuth sign-inEndpoint checked 2026-10-05Operated by Quackr

MCP endpoint (Streamable HTTP)

https://mcp.quackr.io/

Vendor documentation

What you can do with it

Provision virtual phone numbers for AI agents in 15+ countries
Receive SMS verification codes and OTPs for account signup
Automate 2FA flows and account creation for autonomous bots
Test SMS-based workflows end-to-end using real phone numbers

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http quackr-mcp https://mcp.quackr.io/

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add quackr-mcp --url https://mcp.quackr.io/

Cursor

Merge this server into .cursor/mcp.json in your project, then enable quackr-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "quackr-mcp": {
      "url": "https://mcp.quackr.io/"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "quackr-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.quackr.io/",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start quackr-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "quackr-mcp": {
      "type": "http",
      "url": "https://mcp.quackr.io/"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http quackr-mcp https://mcp.quackr.io/

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "quackr-mcp": {
      "url": "https://mcp.quackr.io/"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "quackr-mcp": {
      "serverUrl": "https://mcp.quackr.io/"
    }
  }
}

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