Quackr MCP
@quackr-mcp
About Quackr MCP
Get virtual phone numbers for SMS verification, OTP receipt, and number management.
Basic information
Config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"quackr": {
"type": "http",
"url": "https://mcp.quackr.io/",
"headers": {
"Authorization": "Bearer YOUR_API_KEY_HERE"
}
}
}
}Tools
6Get the current account balance in USD
Get phone number rental pricing for a specific country
Check available phone number inventory for a country
Purchase a temporary number for receiving SMS (deducts from balance)
Check SMS messages received on a rented number
List all currently active (rented) numbers on the account
Overview
What is Quackr MCP?
Quackr MCP is an official MCP server for Quackr — virtual phone numbers for SMS verification and OTP receipt. It lets MCP-compatible clients like Claude check pricing and inventory, purchase temporary numbers, and read incoming SMS programmatically.
How to use Quackr MCP?
Configure it in your MCP client with the hosted endpoint https://mcp.quackr.io/ and an Authorization: Bearer YOUR_API_KEY header. Use the CLI command claude mcp add --transport http quackr https://mcp.quackr.io/ --header "Authorization: Bearer YOUR_API_KEY_HERE" or add it to your ~/.claude.json. For Claude Desktop, add it as a custom connector in Settings → Connectors with the same header.
Key features of Quackr MCP
get-balance– Get current account balance in USDget-pricing– Get phone number rental pricing for a countryget-inventory– Check available phone number inventory for a countrypurchase-number– Purchase a temporary number for receiving SMScheck-sms– Check SMS messages received on a rented numberlist-active-numbers– List all currently active (rented) numbers
Use cases of Quackr MCP
- Check account balance before renting a number
- Look up pricing and inventory for a specific country
- Purchase a temporary phone number for SMS verification
- Read OTPs and incoming SMS from a rented number
- Manage multiple active numbers programmatically
FAQ from Quackr MCP
How do I get an API key?
Sign in at quackr.io, open your profile page, and copy the API key from the API section.
What transport and authentication does Quackr MCP use?
It uses Streamable HTTP transport with Bearer token authentication via the Authorization: Bearer YOUR_API_KEY header.
Can I use Quackr MCP with Claude Desktop?
Yes, add it as a remote custom connector in Settings → Connectors with the URL https://mcp.quackr.io/ and the Authorization header.
Does Quackr also offer a REST API?
Yes, a full REST API is available at https://api.quackr.io/ with the same authentication. See api.quackr.io/swagger.json for the spec.
Where is the Quackr MCP server hosted?
The official hosted endpoint is https://mcp.quackr.io/. It does not run locally.
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