F5Bot

About F5Bot

F5Bot monitors Reddit, Hacker News, and Lobsters for user-specified keywords and sends email alerts within minutes of a match. Users create an account and add keywords such as brand names, product names, or topics to track across posts and comments on the three platforms. The service also offers AI-based filtering that evaluates discussions against natural-language descriptions, advanced filtering by subreddit and co-occurring or excluded terms, Slack and Discord webhook integration, and RSS, JSON, and API access. Alerts can be delivered instantly, batched on a delay, or as a daily digest.

The service is built for use cases including brand monitoring, competitor intelligence, lead generation, and content or PR tracking, and is used by both individual developers and marketing teams, including professionals at PR and marketing firms. It has been running since 2017 and delivers over 430,000 alerts daily.

F5Bot offers a free plan (unlimited duration, no credit card required) with keyword alerts across all three platforms, email notifications, and basic filtering. A Silver plan at $9.99/month adds up to 20 keywords, advanced filtering, full post text, and ad-free emails. A Gold plan at $49.99/month adds up to 200 keywords, RSS and JSON feeds, AI filtering, and Slack/Discord integration. An Enterprise option is also available by contact.

Key features

• Monitors Reddit, Hacker News, and Lobsters for keyword mentions
• AI filtering to evaluate discussions using natural language descriptions
• Advanced filtering by subreddit, excluded terms, and co-occurring keywords
• Slack and Discord integration via webhooks
• RSS, JSON, and API access for custom integrations
• Flexible email delivery: instant, batched, or daily digest

Frequently asked questions