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 has four tiers: BYOK ($19/mo — bring your own LLM key, 3 products, 50 leads/day, 1,000 prospects), Starter ($49/mo — 2 products, 25 leads/day, 500 prospects), Growth ($149/mo — 10 products, 250 leads/day, 5,000 prospects), and Scale ($499/mo — unlimited everything). Open Source is free for self-hosters. The first 100 waitlist members get 50% off 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.

Content Platform

Monitor Industry Newsletters for Buying Signals with SignalPipe

Newsletter audiences are concentrated and self-selected. Readers who engage with a sales-tech or founder newsletter are exactly the buyers you want. SignalPipe monitors Substack and newsletter RSS feeds for intent.

Feed URL — add as a SignalPipe station

https://{publication}.substack.com/feed

In your OpenClaw agent: signalpipe_add_station → paste the URL above

What is Newsletters & Substack?

Many B2B industry newsletters publish via Substack or Ghost, which provide public RSS feeds. Newsletter readers are high-intent — they opted in to content about a specific domain and are actively tracking trends in their field. Comments and discussions on newsletter posts are often overlooked buying-signal sources.

Why monitor Newsletters & Substack for buying signals?

A comment on a sales-tech newsletter asking "what does everyone use for [problem]?" is from a concentrated, self-selected audience of buyers. Newsletter subscriber bases are often smaller than subreddits but significantly higher intent — readers are engaged enough to pay for a newsletter or comment publicly.

How to monitor Newsletters & Substack with SignalPipe

Find newsletters in your category

Identify the newsletters your buyers subscribe to. Look for Substack publications or Ghost blogs with RSS feeds in your product domain.

Add the newsletter RSS as a station

Use the Substack or Ghost RSS URL as your station. Most follow the format {publication}.substack.com/feed.

Monitor for discussion posts

Some newsletters actively solicit reader tool recommendations. These "Ask me" threads are extremely high-value signal sources.

Engage at publication time

Newsletter posts generate concentrated discussion immediately after send. Signal volume peaks in the first 48 hours — monitoring in near-real-time captures this window.

Example Newsletters & Substack buying signals

"Replying to [newsletter]: Anyone else tried monitoring communities for buyer intent? What tools actually work?"

Why it's a signal: Peer recommendation request from a newsletter audience — buyer is actively evaluating.

"Just read this issue — the bit about community lead gen hit home. I've been doing this manually for months"

Why it's a signal: Pain point validation — actively experiencing the problem, about to look for a solution.

"Question for the community: what's in your 2026 sales stack that wasn't in your 2024 stack?"

Why it's a signal: Active stack evaluation — buyer is in annual tool review mode.

Anchor sentences for Newsletters & Substack monitoring

Add these when calling signalpipe_add_product. SignalPipe uses them to detect semantically similar posts across your Newsletters & Substack station.

1"newsletter reader looking for tools that automate community monitoring for sales leads"

2"what sales tools are b2b founders adding to their stack this year"

3"looking for ai-native lead generation tools to replace manual community monitoring"

4"best tools for solo founders doing outbound sales without a sales team"

Frequently asked questions

Do all newsletters have RSS feeds?

Substack publications have RSS feeds at {publication}.substack.com/feed. Ghost publications typically have feeds at {domain}/rss. Beehiiv newsletters sometimes have feeds depending on publisher settings. Not all newsletters expose RSS — check by looking for an RSS link or by testing the common URL patterns.

Are newsletter readers better leads than Reddit users?

Different profile. Newsletter readers are more invested in the topic (they opted in) but smaller in number. Reddit has larger volume with more noise. For niche B2B categories, a relevant newsletter audience can be significantly higher-converting than a general subreddit.

Can I monitor paid newsletter content?

No. SignalPipe only accesses content in public RSS feeds. Paid subscriber content is not included in RSS feeds — you would need to subscribe manually to access it.

Start monitoring Newsletters & Substack for buying signals

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

No credit card. No commitment.

More RSS feed monitoring

Full setup guide →

All 11 tools, anchor sentences, station types

How intent scoring works →

4-stage pipeline: keyword → embedding → sarcasm → LLM

Monitor Product Hunt →

Product Hunt launches attract your target audience

Monitor Indie Hackers →

Indie Hackers posts are unusually honest about budgets, pain points, and tool switches

Monitor Hacker News (RSS) →

Beyond keyword-specific HN pages — SignalPipe can monitor the full HN RSS feed or targeted keyword feeds, scoring every post in your category for genuine buying intent

Monitor DEV Community (dev.to) →

DEV Community (dev