Relentless Identity

You'd reach for this when you need to verify corporate email addresses or map domain names to actual company identities and employee information. The description suggests it can take an email or address and return verified details about the person or organization behind it, which is handy for lead qualification, contact enrichment, or identity verification workflows. The source doesn't specify which APIs or databases it taps into, so you'll want to check the documentation to understand data sources and rate limits. It runs over streamable HTTP, so integration should be straightforward for any client that supports the MCP protocol.