Bridge // Self-Hosted Agents

Your agents watch the world. Your screens show it.

Huginn runs agents on your own server — watching sites, feeds, prices, and events around the clock. A Post Agent forwards whatever they find to your Hangar.Media screens as a live table or announcement cards.

100% Self-Hosted
See Pricing
50+ Agent Types
100% Self-Hosted
50+ Agent Types
Tables · Cards · KPIs Display Targets
Bridge // Overview

From agent event to screen, on your infrastructure

Huginn's agent graph collects and transforms events; a Post Agent at the end of the chain POSTs them to your Hangar.Media inbound webhook. Everything upstream runs on your own server — the screens simply render what your agents emit, with mapping and transforms applied on arrival.

Pure self-hosted pipeline — only the final HTTPS push leaves your server
Map any payload field to display columns with dot-notation paths, defaults, and per-column transforms
Three display targets: live data table, announcement cards (with rolling accumulation), or KPI metrics
Accumulate mode keeps a rolling board of the most recent pushes instead of replacing on every update
Outbound events included: screens can trigger your automations back (offline/online, sync errors, emergency alerts) with a signed envelope
Bridge // Key Features

What you can do with Your screens show it.

Three capabilities that make this integration essential for your digital signage network.

Instant Push // 01

The Post Agent is the bridge

Wire a Post Agent to receive events from any other agents — website watchers, RSS readers, price monitors, schedule emitters — and point it at your inbound webhook URL. Each event becomes a push; each push becomes screen content.

Anything an agent can emit, a screen can display.

Merge events from multiple agents through a single Post Agent

JSON payloads of any shape — single records or lists

Screens update within seconds of the push arriving

Bridge // Instant Push
Field Mapping // 02

Shape the payload into screen content

Point display columns at payload fields with dot-notation paths, set defaults for missing fields, and apply per-column transforms — uppercase, lowercase, truncate, prefix, suffix. The same mapping engine powers every automation platform integration, so a recipe built once is portable across tools.

Your automation sends data; the mapping decides how it reads on screen.

Dot-notation paths reach nested payload fields

Defaults fill gaps so screens never show blanks

Transforms tidy values without touching the automation

Bridge // Field Mapping
Verified Delivery // 03

Token-verified delivery

The Post Agent sends your integration secret in the X-Webhook-Token header; Hangar.Media compares it in constant time and rejects anything else. Fail-closed by design — a misconfigured agent cannot publish to your screens.

Every push is authenticated before a pixel changes.

Constant-time secret comparison, fail-closed

Secret rotation without touching the agent graph

Unknown senders receive 401 and publish nothing

Bridge // Verified Delivery
Bridge // Setup

Four steps to connected screens.

From setup to live content in minutes, not days.

Step 01

Connect the integration

Add the Huginn integration in Hangar.Media. Your unique inbound webhook URL and secret are generated instantly.

Step 02

Add a Post Agent in Huginn

Create a Post Agent receiving events from your source agents: method POST, your inbound webhook URL, payload_all true (or a custom payload), and a header X-Webhook-Token with your integration secret.

Step 03

Map fields to the display

Choose Data Table or Content Cards, then map payload fields to display columns with the field mapper. Defaults and transforms are optional.

Step 04

Push and publish

Run the automation. The payload renders in the bound widget on your screens within seconds — enable Accumulate for a rolling board of recent pushes.

Bridge // Questions

Common questions. Straight answers.

How is the webhook secured

The Post Agent includes your integration secret in the X-Webhook-Token header; Hangar.Media compares it in constant time and rejects non-matching requests with a 401. Combined with Huginn's self-hosted nature, the entire pipeline stays under your control.

What payload shape does Hangar.Media expect

Any JSON. A single object becomes one row or card; an array of objects becomes one row or card per record. With a field mapping configured, only the mapped fields are displayed; without one, the raw fields are shown as a key-value table.

Can one push update several screens

Yes. The push lands in the integration's data feed; every design widget bound to that feed updates, wherever those designs are scheduled — one push can update one screen or the whole estate.

Does Hangar.Media need access to my Huginn server

No. The integration is receive-only — your Huginn instance pushes outbound HTTPS requests to Hangar.Media and nothing connects back to your server.

Pricing // Transparent by Design
£0
/screen/month
Industry avg
£8–24
Hangar
£5

One price. The whole platform.

That's how we think signage should work. Content editor, screen management, and 200+ app integrations — all included from day one.

No per-user fees
Unlimited users
Unlimited screens
200+ integrations
150+ templates
Multi-tenancy
Edge caching
Offline playback
REST API
Emergency alerts
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Chat / Online

Pricing

£5 /screen/month

Everything included. One price.

Speed

Live in five minutes.

Sign up, connect, go.

Hardware

Use the screens you already own.

Fire TV, Android, Tizen, webOS, Pi, browser.

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