Real-time · 4 platforms · API key required

SIGNALFLOW

Cross-platform signal intelligence across Reddit, HackerNews, Bluesky and YouTube — sentiment, velocity and divergence surfaced before topics reach mainstream media.

All Platforms

HackerNews

Bluesky

YouTube

Cross-Platform Only

All Time total signals tracked

Total
Signals

Bluesky

YouTube

Last 24 Hours recent activity

New
Signals

Bluesky

YouTube

Trending Topics

View API ↗

Topic Intelligence

LLM-generated · updated every 15 min

For each trending topic, an LLM reads the top signals and extracts the dominant narrative, emerging counter-angle and platform divergence explanation — automatically.

Cross-Platform Propagation

Topics breaking containment — appearing on two or more platforms within the same hour. These signals cross community boundaries before reaching mainstream media.

Signal Intelligence Dashboard

Topic traction · sentiment · cross-platform lead/lag

Live Grafana dashboard showing topic velocity, sentiment shifts and cross-platform lead/lag.

SIGNALFLOW — TOPIC INTELLIGENCE● LIVE · 1m refresh

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Data Sources

4 platforms monitored

API Reference

Browse API ↗

REST API. API key required for all endpoints. Each response includes signal counts, sentiment, velocity and LLM-generated intelligence.

GET/api/v1/trending/trending topics

GET/api/v1/pulse/?topic=topic intelligence

GET/api/v1/signals/raw signal feed

GET/api/v1/stats/pipeline stats

GET/api/v1/compare/divergence events

Parameters

platform = all | reddit | hackernews | bluesky | youtube
window_minutes = 15 | 30 | 60 | 240
limit = 1–100 (default 20)

live · /api/v1/trending/

// fetching live data...

Frequently Asked Questions

What is SignalFlow?

A real-time cross-platform signal intelligence system monitoring Reddit, HackerNews, Bluesky and YouTube simultaneously. It detects when topics emerge and propagate across communities — often before mainstream media coverage.

How does the intelligence block work?

Every 15 minutes, an LLM reads the top signals for each trending topic and generates a 3-sentence summary, identifies the dominant narrative and emerging counter-narrative, and explains why platform sentiment diverges. Runs outside the hot path — ingestion is never delayed.

What does cross-platform mean?

A topic appearing on two or more platforms within the same window. This indicates a topic is escaping its origin community — a reliable early signal of mainstream breakout.

How is the trend score calculated?

Each signal gets a score derived from velocity, comment velocity, baseline comparison and sentiment weight. Scores are normalised across platforms so a Bluesky post and Reddit thread are directly comparable.

How do I access the API?

All endpoints require an API key. Click "Get API Key" above — same email always returns the same key. Full documentation at signalflo.xyz/docs.

SIGNALFLOW

Social signals, before they peak.