SignalHire
Stands out: Chrome extension, bulk export and built-in email sequences, with both an MCP server and a REST API.
Watch out: It runs on credits, so budget for list volume. Sequences send from your own connected mailbox, so deliverability rests on that account, not on SignalHire.
Not the right fit for
- Teams that need an ATS or CRM in the same product
- Buyers who want a flat fee instead of credits
Tomba
Stands out: Finder, verifier, and catch-all on one credit meter, plus hosted MCP.
Watch out: Phone lookups cost five credits each, so phone-heavy work burns the meter fast.
Not the right fit for
- Teams that only want LinkedIn mobiles
- High-volume phone lookup (phones cost more credits)