MCP server

Quackr Official

io.quackr/quackr

Checked 26 Oct 2026, 08:29 UTC · It answered and asked for a sign-in

Virtual phone numbers for SMS verification, OTP receipt, and number management.

Needs an API keyVerified publisher: quackr.io

https://mcp.quackr.io/

At a glance

Type: MCP server
Publisher: quackr.io (verified by the MCP Registry)
Status: Needs an API key
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.quackr]
url = "https://mcp.quackr.io/"

Gemini CLI

{"mcpServers":{"quackr":{"httpUrl":"https://mcp.quackr.io/"}}}

Cursor

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

VS Code

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

Antigravity

agy mcp add quackr https://mcp.quackr.io/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"quackr","server_url":"https://mcp.quackr.io/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"quackr","server_url":"https://mcp.quackr.io/"}

Needs an API key or token from its maker, usually added as a header in the setup.

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