LeadGibbon

LinkedIn emails, verified on the spot

APICapable readiness

About

What is LeadGibbon

LeadGibbon pulls verified email addresses from LinkedIn and Sales Navigator via a Chrome extension, cross-references them against a 26M+ contact database, and confirms deliverability before you ever hit send. It also runs in the other direction — upload a list of contacts and the email enricher appends and validates addresses in bulk. SDRs, BDRs, AEs, and founders at SMB and mid-market companies use it to build outbound lists without leaving their LinkedIn workflow. The standout capability is bulk Sales Navigator email extraction, which lets teams sweep an entire search result set rather than pulling contacts one at a time. Where it falls short is depth beyond email — phone number coverage is limited, and teams needing intent signals or multi-channel sequencing will need to pair it with other tools.

Data & Discovery

Capabilities

Key features

Email finder

returns verified work emails by name and domain

Native CRM integration

first-party connectors, no middleware required

Also ships

Chrome extension

Our verdict

Vanderbuild take

LeadGibbon is a focused email finder built for SDRs, AEs, and founders who live in LinkedIn and need verified contacts without a heavy data platform overhead. The API is available, so you can wrap it into your own MCP layer or agentic outbound workflow — it's capable enough to serve as a data node in a broader automation stack, even if MCP-native status isn't confirmed yet. At $39/month to start, it's affordable for small teams, though credit limits mean you'll be upgrading sooner than expected once prospecting volume picks up. The honest ceiling here is that it's an email-first tool — phone coverage is thin, there are no intent signals, and sequencing lives elsewhere, so plan for it as one piece of a stack rather than a standalone outbound engine.

Mateusz Sekta

Founder, vanderbuild

The wedge

Agentic stack profile

API

REST

Programmatic access available.

REST API — straightforward to call from any agent or workflow tool. Rate limits and auth vary by plan.

API docs →

Agentic readiness

Capable

Solid API access — wraps cleanly for agent use.

Solid REST or SDK access. No MCP server yet, but easy to wrap in custom agent tooling. Most modern SaaS tools land here.

Stack role

Data source · Verifier

Where this tool slots into an agentic pipeline.

Plays the role of Data source + Verifier in an agentic pipeline. Use it to source contacts, companies, and the raw inputs an agent needs to act; validate emails or phones before an agent sends or dials.

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