SigParser

This connects Claude to SigParser's relationship intelligence platform, which mines email signatures, calendars, and mailbox history to build contact databases. You get query access to contacts, companies, and communication metrics that SigParser extracts from connected mailboxes. Reach for this when you need Claude to analyze business relationships, find warm introductions, or pull enriched contact data including titles, phone numbers, and interaction frequency. SigParser's core strength is automatically parsing email signatures and scanning historical emails to uncover thousands of contacts you've interacted with but never formally tracked. The server exposes their API over streamable HTTP, so Claude can help you search your network, identify relationship owners, or build targeted lists from years of email data without manual CRM entry.