SERVER

Quackr

Rank #45,504

io.quackr/quackr

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

4 versions

by quackr-mcp (1 servers)View repository ↗Claim this server

First listed

Jun 11, 2026

Last publish date

Jun 18, 2026

OVERVIEW

Quackr is a Model Context Protocol (MCP) server published by quackr-mcp. It ranks #45,504 of 137,492 servers tracked on MCP Toplist. Quackr is listed across 4 registries — Official MCP, mcp.so, PulseMCP and Glama, with 4 tracked versions. It was first listed on Jun 11, 2026 and most recently updated on Jun 18, 2026.

STANDING

#45,504of 137,492 tracked serversTop 50%

Ranks ahead of 91,988 of 137,492 servers on MCP Toplist.

CONNECT

Use Quackr

API keyNeeds credentials

Requires user-supplied configuration before first use — typically an API key, token or connection string set via environment variables.

Remote · HTTP

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

This endpoint requires authentication — see the server’s docs for credentials.

npm package

claude mcp add quackr -e "QUACKR_API_KEY=<your QUACKR_API_KEY>" -- npx -y quackr-mcp

Replace each placeholder with your own value before saving.

Remote · HTTP

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

Add to ~/.codex/config.toml. This endpoint requires authentication — see the server’s docs for credentials.

npm package

[mcp_servers.quackr]
command = "npx"
args = ["-y", "quackr-mcp"]

[mcp_servers.quackr.env]
QUACKR_API_KEY = "<your QUACKR_API_KEY>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

Remote · HTTP

https://mcp.quackr.io/

Settings → Connectors → “Add custom connector”, then paste this URL. This endpoint requires authentication — see the server’s docs for credentials.

npm package

{
  "mcpServers": {
    "quackr": {
      "command": "npx",
      "args": [
        "-y",
        "quackr-mcp"
      ],
      "env": {
        "QUACKR_API_KEY": "<your QUACKR_API_KEY>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

Remote · HTTP

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

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). This endpoint requires authentication — see the server’s docs for credentials.

npm package

{
  "mcpServers": {
    "quackr": {
      "command": "npx",
      "args": [
        "-y",
        "quackr-mcp"
      ],
      "env": {
        "QUACKR_API_KEY": "<your QUACKR_API_KEY>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

Remote · HTTP

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

Save as .vscode/mcp.json in your workspace. This endpoint requires authentication — see the server’s docs for credentials.

npm package

{
  "servers": {
    "quackr": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "quackr-mcp"
      ],
      "env": {
        "QUACKR_API_KEY": "<your QUACKR_API_KEY>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

Remote · HTTP

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

Add to ~/.codeium/windsurf/mcp_config.json. This endpoint requires authentication — see the server’s docs for credentials.

npm package

{
  "mcpServers": {
    "quackr": {
      "command": "npx",
      "args": [
        "-y",
        "quackr-mcp"
      ],
      "env": {
        "QUACKR_API_KEY": "<your QUACKR_API_KEY>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

Remote · HTTP

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

This endpoint requires authentication — see the server’s docs for credentials.

npm package

{
  "mcpServers": {
    "quackr": {
      "command": "npx",
      "args": [
        "-y",
        "quackr-mcp"
      ],
      "env": {
        "QUACKR_API_KEY": "<your QUACKR_API_KEY>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.quackr%2Fquackr.svg)](https://mcptoplist.com/server/io.quackr%2Fquackr)

HTML

<a href="https://mcptoplist.com/server/io.quackr%2Fquackr"><img src="https://mcptoplist.com/badge/io.quackr%2Fquackr.svg" alt="MCP Toplist: Top 50% of 137,492" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

REGISTRIES

Listed on 4 registries

ORGANIZATION

quackr-mcp

Organization

quackr-mcp

Servers in org

Versions across org

VERSIONS

Available versions (4)

Version	Published
1.0.3	Jun 18, 2026
1.0.2	Jun 17, 2026
1.0.1	Jun 17, 2026
1.0.0	Jun 11, 2026

FAQ

Frequently asked questions

Who maintains Quackr?: Quackr is maintained by quackr-mcp, which publishes 1 MCP server (4 total versions) tracked on MCP Toplist.
Is Quackr listed on the Official MCP Registry?: Yes — Quackr is listed on the Official MCP Registry, alongside mcp.so, PulseMCP and Glama.
How many versions does Quackr have?: MCP Toplist tracks 4 versions of Quackr, most recently published on Jun 18, 2026.
Where can I find the source code for Quackr?: The source code for Quackr is hosted at github.com/quackr-mcp/quackr-mcp.

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