AI Tool

F5Bot Review

F5Bot is an AI-powered tool that monitors Reddit, Hacker News, and Lobsters for specified keywords, providing real-time alerts and supporting natural language queries.

shipped Aug 19, 2026freemium

Domain rating59Monthly visits376/mo

Why it matters

1Monitors Reddit, Hacker News, and Lobsters for keyword mentions.

2Delivers real-time alerts via email, Slack, Discord, RSS, JSON, and API.

3Offers AI semantic alerts on its Ultra tier for natural language matching.

4Processes over 430,000 alerts daily across its user base.

Specs

API Available

Yes, public API

overview

What is F5Bot?

F5Bot is an AI-powered keyword monitoring tool developed by F5Bot that enables individuals and teams to track mentions across specific online communities. It provides real-time alerts for new posts and comments containing user-defined keywords on platforms such as Reddit, Hacker News, and Lobsters, delivering notifications within minutes of a mention. The platform supports AI filtering for natural language queries, enhancing the relevance of alerts.

features

Key Features of F5Bot

F5Bot provides a comprehensive suite of features designed for real-time monitoring of niche online communities, with a focus on timely and relevant alerts.

Real-time keyword alerts delivered within minutes of a mention.
AI filtering for natural language queries, available on Gold tier.
Advanced filtering options including subreddit specification, exclude terms, and co-occurring keywords.
Integration with Slack and Discord via webhooks for team notifications.
Access to alerts via RSS, JSON feeds, and a full API.
Flexible email delivery options: instant, batched, or daily digest.
Monitors all public subreddits on Reddit, Hacker News, and Lobsters.
Tracks mentions within both posts and comments across monitored platforms.

use cases

Who Should Use F5Bot?

F5Bot is particularly suited for users who need to monitor specific online communities for targeted information, brand mentions, or lead generation.

Brand Monitoring: Companies tracking mentions of their brand or products to gauge public perception and respond to discussions.
Competitor Intelligence: Businesses monitoring competitor activity and market presence on niche platforms.
Lead Generation/Market Research: Identifying conversations related to industry trends, product categories, or user needs, including buying-intent posts.
Solo Developers & Founders: Individuals whose target audience is active on Hacker News and Lobsters, seeking early feedback or engagement.
Marketing Teams: Teams needing to stay informed about content performance, PR mentions, and community sentiment.

how to use

How to Use F5Bot

F5Bot is designed for straightforward setup, allowing users to begin monitoring keywords across Reddit, Hacker News, and Lobsters quickly.

1Navigate to the F5Bot website and create a free account.
2Define specific keywords or phrases to monitor across Reddit, Hacker News, and Lobsters.
3Configure alert delivery preferences, choosing between instant email, batched emails, or daily digests.
4For advanced monitoring, upgrade to a paid tier to access AI filtering, Slack/Discord webhooks, or API access.
5Review incoming alerts to identify relevant mentions and engage with the community as needed.

pricing

F5Bot Pricing & Plans

F5Bot operates on a freemium model, offering a robust free tier alongside paid plans that unlock advanced features and increased limits. The free tier provides basic keyword alerts and email notifications for Reddit, Hacker News, and Lobsters. Paid tiers, introduced in 2024, expand capabilities significantly.

Free: $0 – Includes keyword alerts, monitoring of Reddit, Hacker News, and Lobsters, email notifications, and basic filtering flags.
Silver: $9.99 per month – Offers 20 keywords, advanced filtering flags, full post text in alerts, and ad-free emails.
Gold: $49.99 per month – Provides 200 keywords, RSS & JSON feeds, AI filtering for natural language queries, and Slack & Discord integrations.

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Pros

+Genuine free tier with no trial expiration or credit card requirement.
+Effective real-time monitoring of Reddit, Hacker News, and Lobsters.
+Easy setup and reliable delivery of alerts within minutes.
+AI semantic alerts available on paid tiers for natural language query matching.
+Offers API, RSS, JSON, Slack, and Discord integrations on paid plans.

Cons

−Free tier lacks context or intent scoring, leading to a high volume of irrelevant alerts.
−Free tier primarily uses email for alerts, without a live dashboard or collaboration features.
−Does not cover major social media platforms like X (formerly Twitter), LinkedIn, or Facebook.
−Keyword limits on the free tier (200 keywords, 50 alerts/day/keyword) can be restrictive for popular terms.
−No built-in engagement features for replying or tracking conversations post-alert.

Similar Tools

F5Bot vs Competitors

F5Bot distinguishes itself in the market through its strong free tier and focused monitoring of niche developer-centric platforms. While many alternatives offer broader social listening, F5Bot excels in its specific niche.

ChatterSift↗

It is an open-source, self-hostable solution for monitoring Reddit and Hacker News, offering keyword matching and instant email alerts.

While F5Bot offers a hosted freemium service, ChatterSift provides the option to self-host, giving users full control over their data and infrastructure, though it requires more technical setup.

Syften↗

It focuses on precise, real-time keyword alerts across Reddit, Hacker News, and other online communities, with advanced filtering and multiple alert delivery options.

Syften offers more in-depth filtering, team routing, and integration options compared to F5Bot's basic free tier, making it suitable for more serious monitoring needs.

RedditAlert↗

It provides real-time Reddit monitoring with AI-powered content matching, allowing natural language queries and delivering alerts within 30 seconds.

RedditAlert focuses exclusively on Reddit and offers more advanced AI filtering and faster alerts (within 30 seconds) than F5Bot's general monitoring, but does not cover Hacker News or Lobsters.

ForumScout↗

It provides instant, real-time Reddit keyword alerts with AI filtering to reduce noise and deliver relevant mentions.

ForumScout is highly focused on Reddit and offers AI filtering to improve relevance, similar to F5Bot's AI features, but it does not explicitly mention Hacker News or Lobsters monitoring.

See every F5Bot alternative, compared→

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