RelayShield gives AI agents and developers real-time identity and infrastructure threat detection via a single REST API. Monitor breach exposure, SIM/eSIM swap attacks, and domain lookalikes. Install as a native MCP server for Claude Desktop and Claude Code in one line: pip install relayshield-mcp
Overview
What RelayShield Does
RelayShield gives AI agents and developers real-time identity and infrastructure threat detection via a single REST API.
Available Tools
- check_breach — Check if an email address appears in known data breaches
- check_sim_swap — Detect SIM/eSIM swap activity on a phone number
- check_domain_lookalikes — Scan for typosquat/lookalike domains targeting your brand
- scan_url — Analyse a URL for phishing and malware signals (coming soon)
- scan_file — Scan a file hash for malware detection (coming soon)
Quick Start
pip install relayshield-mcp
Get your API key at relayshield.net
Use Cases
- Verify user identity risk before high-value transactions
- Alert users when their credentials appear in a breach
- Detect infrastructure attacks against your domain in real time
- Add security tooling to any Claude Desktop or Claude Code workflow
Server Config
{
"mcpServers": {
"relayshield": {
"command": "uvx",
"args": [
"relayshield-mcp"
],
"env": {
"RELAYSHIELD_API_KEY": "<YOUR_API_KEY>"
}
}
}
}