bingal/FastDomainCheck-MCP-Server

A Model Context Protocol implementation for checking domain name registration status in bulk.
## Related Links
FastDomainCheck Online Service - Check domain registration status in bulk online
MCP Server Documentation - Detailed project documentation and technical specifications
## Introduction
FastDomainCheck MCP Server is a Model Context Protocol (MCP) server implementation that enables secure, two-way connections between AI tools (like Claude) and domain availability data. By following the open MCP standard, it ensures seamless compatibility with various AI-powered applications.
## Features
Bulk domain registration status checking
Dual verification using WHOIS and DNS
Support for IDN (Internationalized Domain Names)
Concise output format
Built-in input validation and error handling
## Tool Documentation
### checkdomains
Check registration status for multiple domain names.
#### Input Format
json
"domains": ["example.com", "test.com"]
Parameters:
domains: Array of strings containing domain names to check
Maximum length of 255 characters per domain
Maximum 50 domains per request
No empty domain names allowed
#### Output Format
json
"results": {
"example.com": {
"registered": true
},
"test.com": {
"registered": false
Response Fields:
results: Object with domain names as keys and check results as values
registered: Boolean
true: Domain is registered
false: Domain is available
#### Error Handling
The tool will return an error in the following cases:
1. Empty domains list
2. More than 50 domains in request
3. Empty domain name
4. Domain name exceeding 255 characters
5. Result serialization failure
Error Response Format:
json
"error": "Error: domains list cannot be empty"
#### Usage Examples
Check multiple domains:
> Request
json
"domains": ["example.com", "test123456.com"]
> Response
json
"results": {
"example.com": {
"registered": true
},
"test123456.com": {
"registered": false
## Performance Considerations
1. Domain checks are executed sequentially, taking approximately 0.3-1 second per domain
2. Maximum 50 domains per request to prevent resource exhaustion
3. WHOIS query timeout set to 10 seconds
4. DNS query fallback when WHOIS query fails
## Error Handling Strategy
1. Input Validation: Comprehensive validation before processing
2. Dual Verification: WHOIS primary, DNS fallback
3. Timeout Management: Reasonable timeouts for all network operations
4. Detailed Error Messages: Clear error descriptions for troubleshooting
## Usage
### Download Binary
Download the binary file from the release page.
https://github.com/bingal/FastDomainCheck-MCP-Server/releases
### For Mac/Linux
bash
chmod +x FastDomainCheck-MCP-Server
### MCP Server Settings
#### Configuring FastDomainCheck MCP in Claude Deskto