Kast
Turn your LinkedIn posts into clients, not just likes
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Kast helps B2B founders know which LinkedIn posts bring clients. Plume drafts posts in your voice, each post is reviewed before publishing (hook, structure, call to action, voice), you schedule on LinkedIn and X, then Kast collects the people who engaged, with job title and company, and sends them to Instantly, Lemlist, Waalaxy or Gojiberry.
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PH · launched Oct 27, 2026 · 4 upvotes (top 7%)
- Sales
- CRM & pipeline
- B2B
- Commercial product
Similar launches
See all 175 similar launches →Could you build this?
Partial The post drafting, review workflow, and scheduling UI are easy to vibe-code. Scheduling to LinkedIn is constrained by LinkedIn's restricted API, and identifying engagers with job title and company depends on enrichment data a solo builder would need to license.
What it would actually take: The stack would be a web app with an LLM for drafting, a scheduler, and OAuth integrations with LinkedIn and X. The hard parts are obtaining LinkedIn API partner access or relying on less reliable methods, and building or buying a B2B people-enrichment dataset to map engagers to companies. That requires data-licensing agreements and compliance with platform terms and privacy rules.
Competitors
Other products that read as similar to this one : 175 launches clear the similarity bar, closest 8 shown.
Attention rank: #22 of 176 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 175 days after the earliest competitor.
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