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๐Ÿ”” PostHog

Get notified when feature flags change

Webhook notifications whenever feature flags are enabled, disabled, modified, or deleted. Send to Slack, n8n, or any custom endpoint.

$29 one-time purchase
โฑ Estimated 4-8 hours to build it yourself
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๐Ÿ”’ Source included๐Ÿ’ฐ 14-day money back๐Ÿ“ง 48hr support

The Problem

Someone on your team toggles a feature flag in PostHog. Nobody else knows until something breaks. No audit trail, no notifications.

The Solution

Webhook notifications whenever feature flags are enabled, disabled, modified, or deleted. Send to Slack, n8n, or any custom endpoint.

How It Works

1

Configure PostHog API credentials

2

Set up webhook destination URLs (Slack, n8n, etc.)

3

The service polls PostHog for flag changes on a configurable interval

4

Changes trigger webhook notifications to all configured destinations

Preview

Here's what it looks like in action:

Terminal
$ docker-compose up -d
Creating network... done
Creating container... done
โœ… Plugin running on :3000
$ curl localhost:3000/health
{"status":"ok","version":"1.0.0"}

Features

Flag Change Detection

Detects enable, disable, filter modification, and deletion of feature flags.

Multiple Destinations

Send notifications to Slack, n8n, custom webhooks, or all of them simultaneously.

Change History

API endpoint shows the last 100 flag changes. Built-in audit trail.

REST API

Manage webhook URLs, trigger manual checks, and query history programmatically.

What's Included

Full source code, Dockerfile, docker-compose.yml, README, email support

โš ๏ธ Requirements: PostHog Cloud or self-hosted, PostHog API key with feature flag read access

Frequently Asked Questions

Is this real-time?

Polling-based with configurable interval (default 30 seconds). Not true real-time but fast enough for most use cases.

Is there a subscription?

No. One-time purchase.

PostHog Feature Flag Webhooks

$29 โ€” one-time, source included, no subscription


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