Build outreach around the signals that matter to your business—from X conversations and LinkedIn page followers to custom industry data sources. Cluster brings signals, account discovery, research, and LinkedIn and email outreach into one place. Turn relevant activity into a reviewed audience and messages grounded in what you found.
| Feature | Cluster |  |
|---|---|---|
| Prospecting and contact enrichment | Yes | Yes |
| AI web research and qualification | Yes | Yes, AI columns |
| Hiring, funding and job-change signals | Yes | Yes |
| X follower and post-reply signals | Yes | No |
| LinkedIn company-page follower sourcing | Yes | No |
| Custom signal options | Yes, white glove implementation | Only API imports |
| Proactive campaign recommendation agent | Yes | No |
| Native LinkedIn + email sequences | Yes | Yes |
| Unified LinkedIn + email inbox | Yes | Yes |
| AI agent access through MCP & CLI | Yes | Yes |
| Built-in call dialer | No | Multichannel plan only |
Cluster’s campaign recommendation agent draws on campaigns that have performed well for similar customers in our network. It combines those insights with your ICP, past results, and relevant signals to recommend new campaigns—with a targeted audience and draft messages ready for your team to review and launch.
Start with people replying to relevant X conversations, following X accounts, or following a LinkedIn company page. Cluster supports these sources alongside hiring, funding, job changes, and LinkedIn post engagement. Build an audience around observable activity, then qualify who fits before preparing outreach.
Work with Cluster on a dedicated signal integration for the sources your market depends on. Custom setups can bring regional job listings or industry records into your prospecting workflow as structured signals. Each integration requires setup and is enabled for the relevant account; availability is agreed with your team.
Work through Claude or Codex to source leads, review research, prepare a campaign, and handle replies. You can inspect the audience and copy before launch. lemlist also supports MCP and AI workflows, so choose Cluster when its shared research tables and prospecting workflow match how your team wants to build outbound.
“We created highly targeted campaigns that have ripped for us - all directly in Claude. I just wispr flow into Claude and it does all the work”
Alejandro Zaniolo
Co-founder @ Signals
“Cluster has helped us scale our top of funnel through lead research and management.”
Austin Mao
CEO @ Modern Industrials
“Cluster helps me run highly targeted outbound campaigns through Claude. It's unlocked this new channel for us”
Max Werner
Founder & CEO @ Chambas AI
Bring the sources and events that matter to your market. Cluster helps you build an audience from social activity or a custom signal integration, qualify the people, and turn what you learn into LinkedIn and email outreach. Keep signals, research, campaigns, and replies in one place.