Public-presence inbox for modern tools

Browse. Score. Reply.

Signalstac is an AI agent that browses the communities where your customers post, scores what’s worth your time, and drafts the reply — in your voice.

7-day free trial · $15 a workspace · no card to start
signalstac®Reply-now queue · today Syncing every 30 min12 new
r/SaaS2h agorelevance 94
Anyone found a good tool for tracking mentions across Reddit + HN without it feeling spammy?
High buying intentCompetitor named42 comments
Drafted reply In your voice
We built Signalstac for exactly this — it browses Reddit, HN, GitHub and a few others every 30 minutes, scores each thread by intent, and drafts a reply in your voice so nothing reads like a bot. Happy to share how we handle rate limits if it helps.
Copy draftOpen thread ↗Skip
Hacker News4h agorelevance 88
How are small teams doing developer marketing without a big budget or a spam reputation?
EngagementFront page
github.com · discussions5h agorelevance 81
Best way to monitor GitHub Discussions for our OSS project’s support questions?
Support opportunity
Browsing the communities your customers actually use
How it works

Three moves, on a loop.

An agent runs the whole cycle every 30 minutes so the right conversations land in your queue, not your notifications.

01

Browse

A real browser reads the communities where your customers actually post — no shallow keyword API, no missed context.

r/SaaS 2h
Hacker News 4h
GitHub Discussions 5h
02

Score

Every thread is ranked on relevance and buying intent, so a firehose of posts becomes a short, ordered list worth your time.

94Relevance
High buying intent top 3%
03

Reply

A draft is written in your voice from your own writing samples. You review, tweak, and post — Signalstac never sends on its own.

We built Signalstac for exactly this — it browses the communities you care about and drafts a reply in your voice
§ Pricing

Self-serve. One flat price.

Workspace · self-serve
$15/ workspace · mo
Start free · 7-day trial, then billed monthly

A flat price for the whole team — unlimited members, no seat math. An agent browses your sources in a real browser every 30 minutes, around the clock, and keeps a ranked queue of drafts ready in your voice.

Start free trial 7 days free · cancel anytime
Everything included
  • An agent browsing your sources every 30 minutes, all day
  • Six sources, browsed in a real browser
  • Relevance + intent scoring on every thread
  • Reply drafts in your voice · 2–3 angles each Experimental
  • Pipeline tracking + weekly recap
  • Guided onboarding · unlimited members

X (Twitter)isn’t part of the self-serve plan. It runs on dedicated infrastructure, so it’s enabled by request on a separate plan — request X access and we’ll set it up for your workspace.