Returns a regex pattern for validating IPv4 addresses. Access via MCP in Cursor or Windsurf, or GET /v1/regex/pattern/ipv4. Perfect for form validation or log parsing where you need precise IPv4 matching. The pattern handles edge cases like leading zeros and invalid octet ranges that basic patterns miss.
curl "https://tinyfn.io/v1/regex/pattern/ipv4" \
-H "X-API-Key: YOUR_API_KEY"const response = await fetch('https://tinyfn.io/v1/regex/pattern/ipv4', {
headers: { 'X-API-Key': 'YOUR_API_KEY' }
});
const data = await response.json();
console.log(data);import requests
response = requests.get('https://tinyfn.io/v1/regex/pattern/ipv4',
headers={'X-API-Key': 'YOUR_API_KEY'})
data = response.json()
print(data)Connect your AI agent (Claude, Cursor, Windsurf, etc.) to TinyFn's regex tools:
{
"mcpServers": {
"tinyfn-regex": {
"url": "https://tinyfn.io/mcp/regex",
"headers": {
"X-API-Key": "YOUR_API_KEY"
}
}
}
}Returns a comprehensive pattern that validates proper IPv4 format (0.0.0.0 to 255.255.255.255) while rejecting invalid octets like 256+ or leading zeros in multi-digit numbers.
Call the get_ipv4_pattern tool in Cursor or Claude Code, then use the returned regex in your validation logic or search/replace operations.
Yes, the pattern correctly rejects invalid formats like leading zeros in octets, numbers above 255, and malformed structures that simpler regex patterns might miss.
Absolutely. The pattern is designed for reliable IPv4 extraction from logs, configuration files, and network data where false positives would be problematic.
Yes, this provides a production-ready pattern that handles RFC compliance and edge cases, unlike simple patterns that often have false positives or miss validation rules.
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