Real-time · 4 platforms · open API

SIGNALFLOW

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

All Platforms
Reddit
HackerNews
Bluesky
YouTube
Cross-Platform Only
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All Time total signals tracked
Total
Signals
REDDIT
BLUESKY
YOUTUBE
HACKERNEWS
Last 24 Hours recent activity
New
Signals
REDDIT
BLUESKY
YOUTUBE
HACKERNEWS
Trending Now
— Topics
— Cross-Platform
4 Platforms
Topic Intelligence
LLM-generated · updated every 15 min

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

Cross-Platform Propagation

Topics that have broken containment — appearing on two or more platforms within the same hour. These are the signals that cross community boundaries before they hit mainstream media.

Signal Intelligence Dashboard
Topic traction · sentiment · cross-platform lead/lag

Live Grafana dashboard showing topic velocity over time, sentiment shifts and cross-platform lead/lag. Each spike marks a moment a topic broke containment across platforms.

SIGNALFLOW — TOPIC INTELLIGENCE ● LIVE · 1m refresh
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Dashboard available at your Grafana instance
Add your Grafana embed URL below to display live charts
Open Dashboard ↗
Data Sources
4 platforms monitored
API Reference
Browse API ↗

REST API with live data. API key required for all endpoints. Each response includes signal counts, sentiment, velocity, platform breakdown 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.
What is the intelligence block?
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. This 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. Significant because it 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 (points per second), 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. Get yours at signalflo.xyz — click "Get API Key". Same email always returns the same key.

Social signals, before they peak.

Open API. Real data. Updated every 30 seconds.

Get API Key ->