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.

Tech Community

Monitor the Full Hacker News RSS Feed for Sales Signals

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.

Feed URL — add as a SignalPipe station

https://hnrss.org/frontpage

In your OpenClaw agent: signalpipe_add_station → paste the URL above

What is Hacker News (RSS)?

Hacker News (news.ycombinator.com) is the primary forum for founders, engineers, and technical operators at companies that buy and build software. Ask HN posts, Show HN launches, and comment threads generate thousands of buying signals per week across every B2B software category.

Why monitor Hacker News (RSS) for buying signals?

An "Ask HN: what do you use for X?" post can have 200 comments within hours. The window to be first — or most relevant — is tight. SignalPipe catches these posts within 10 minutes and surfaces them to your queue before they age out of relevance.

How to monitor Hacker News (RSS) with SignalPipe

Choose your monitoring strategy

You can monitor the full HN frontpage RSS, keyword-specific feeds via hnrss.org, or "Ask HN" posts only. Most users start with 2-3 keyword feeds for their product category.

Add the HN RSS station

Call `signalpipe_add_station` with your chosen hnrss.org URL. For keyword monitoring, the format is: hnrss.org/newest?q=your+keyword.

Configure intent-specific anchor sentences

HN posts range from news commentary to direct purchasing questions. Anchor sentences should target the purchase-intent end: comparisons, migration questions, and "looking for" posts.

Prioritize "Ask HN" posts

Ask HN posts asking about tools are the highest-converting signal type on HN. SignalPipe's scoring layer gives these additional weight when the post starts with "Ask HN:".

Example Hacker News (RSS) buying signals

"Ask HN: What do you use for monitoring Reddit and forums for sales leads?"

Why it's a signal: Direct market research — the highest-intent query type. Post this product as the answer.

"Show HN: I built [competitor] — looking for early feedback"

Why it's a signal: Competitor launch — their commenters and upvoters are your target market.

"We just switched from [tool] to [tool] for our sales pipeline — AMA"

Why it's a signal: Public vendor migration — directly engaged users are evaluating alternatives.

Anchor sentences for Hacker News (RSS) monitoring

Add these when calling signalpipe_add_product. SignalPipe uses them to detect semantically similar posts across your Hacker News (RSS) station.

1"looking for a tool that monitors online communities for sales leads"

2"what do teams use for tracking buying intent across developer forums"

3"ask hn best way to find warm leads without cold email"

4"need something to monitor hacker news and reddit for product mentions"

Frequently asked questions

What is the difference between monitoring HN via RSS and the dedicated SignalPipe HN keyword pages?

The /monitor/hn/[keyword] pages in SignalPipe are pre-configured for specific HN keyword feeds. The generic RSS station lets you add any hnrss.org URL, including custom keyword combinations, "Ask HN" only feeds, or front-page monitoring.

Does hnrss.org have usage limits?

hnrss.org is a free service with no published rate limits for standard polling. SignalPipe's 10-minute polling interval is well within normal usage. For high-frequency needs, self-hosted hnrss is an option.

Can I monitor a specific HN user's posts?

hnrss.org supports user-specific feeds (hnrss.org/submitted?id=username). You can add these as custom RSS stations in SignalPipe to track specific HN users who post about your category.

Start monitoring Hacker News (RSS) 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 Lobste.rs →

Lobste

Monitor GitHub Releases →

When a team pins or upgrades a dependency, it's a signal

Monitor Stack Overflow →

A developer asking "how do I do X without [current tool]?" on Stack Overflow is a warm lead