SignalPipe is an agentic sales pipeline that monitors Reddit, Hacker News, and RSS feeds 24/7 for buying-intent signals. It uses AI to score each signal, draft a reply, and surface only real leads for human review and approval before anything is sent.

How does SignalPipe detect buying intent?

SignalPipe uses a three-stage pipeline: a keyword gate for cheap pre-filtering, OpenAI text-embedding-3-small for semantic similarity scoring against your anchor sentences, and a three-model LLM swarm (Optimist, Analyst, Skeptic) that evaluates each post independently. A hard skeptic veto suppresses any signal the most skeptical judge dismisses.

Does SignalPipe send messages automatically?

No. Every message requires human approval before it is sent. SignalPipe drafts the reply and queues it for your review — you approve, edit, or reject each one. Nothing is sent without your explicit sign-off.

What platforms does SignalPipe monitor?

SignalPipe monitors Reddit (via subreddit RSS feeds), Hacker News (via hnrss.org keyword feeds), and any RSS-compatible feed. You can add as many sources as you want per product.

How is SignalPipe different from Clay or Apollo?

Clay enriches contact lists you already have. Apollo is a cold email database. SignalPipe generates net-new leads by detecting live buying signals — finding people who are actively posting that they need what you sell, right now, in public communities.

SignalPipe offers three tiers: Starter ($49/mo — 3 products, 50 leads/day, 500 prospects), Growth ($149/mo — 10 products, 250 leads/day, 5,000 prospects), and Scale ($399/mo — unlimited everything). The first 100 waitlist members get Starter free for 3 months.

Does SignalPipe work with NVIDIA NeMoClaw?

Yes — fully compatible out of the box. NeMoClaw is NVIDIA's enterprise distribution of OpenClaw, so any OpenClaw plugin installs and runs on NeMoClaw without modification. For on-prem deployments, SignalPipe also supports local model inference: set COMPANION_LLM_PROVIDER=openai_compatible and point it at a locally running Nemotron or any OpenAI-compatible endpoint. Your leads, prospect data, and generated messages never leave your infrastructure.

Can I run SignalPipe fully on-premises?

Yes. Self-host the FastAPI backend on your own server, connect it to your own PostgreSQL database, and configure the companion message generation to use a local model via any OpenAI-compatible endpoint (Nemotron via NeMoClaw, Ollama, LM Studio, vLLM). The only external call that remains is the OpenAI embedding API for signal scoring — and that can be swapped for a local embedding model by request.

Feature

Hacker News Is Full of Buyers. Are You Watching?

"Ask HN: What tools do you use for X?" — SignalPipe catches these the moment they're posted.

Hacker News has an unusually high density of technical founders, early adopters, and B2B software buyers. Ask HN threads, Show HN posts, and comment chains regularly surface people with real buying intent who respond well to genuine, expert replies.

SignalPipe monitors HN via the hnrss.org API — configurable by keyword, so you can track any combination of topics relevant to your product. Posts and comments are scored using the same three-stage pipeline as Reddit: keywords, embeddings, and LLM swarm.

Because HN replies from knowledgeable people get upvotes and visibility, a single well-placed reply can generate traffic beyond the original poster.

How it works

Keyword-scoped feeds

Track any combination of keywords across new HN posts, using feeds like hnrss.org/newest?q=YOUR+KEYWORDS.

Ask HN and Show HN coverage

Both question posts and product launches are monitored — catching both direct buyers and people evaluating competitors.

High signal-to-noise

HN's quality bar naturally filters low-effort posts, so your feed is already cleaner than Reddit. SignalPipe's scoring layer removes the remaining noise.

Reply, don't just watch

SignalPipe drafts a reply to every qualifying post. You spend 30 seconds reviewing instead of 30 minutes writing.

See it in action

Join the waitlist. First 100 get Starter free for 3 months.

No credit card. No commitment.

Related features

Reddit Lead Generation →

Every subreddit is a market. SignalPipe monitors yours 24/7 and surfaces buyers the moment they post.

AI Buying Intent Detection →

Three-stage AI scoring — keyword gate, embedding similarity, LLM swarm — surfaces real buyers and rejects everything else.

Competitor Mention Alerts →

Monitor every mention of your competitors across Reddit, HN, and RSS — and get there first.