F5Bot setup
Real-time keyword alerts from Reddit, Hacker News and Lobsters.
What it does
F5Bot emails you when your keywords appear in new posts and comments. It matches exact phrases, ignores capitalisation, and offers filters such as whole words only or posts only.
- Main source of Reddit and Hacker News threads
- Each project gets its own keyword list, and alerts are routed by the exact keyword that matched
Get set up
- Sign up at f5bot.com with the inbox Larvabot reads
- Copy each project's keywords (and flags) from its Profile tab into F5Bot
Where it goes
Nothing to paste into Larvabot. Once the steps above are done, it just works.
Staying free
No API calls at all: Larvabot reads the alert emails from your inbox, and alerts for keywords no project owns are ignored.
How the quota guard works →Larva tip
F5Bot's free plan watches a limited number of keywords per account, shared across all your projects. The Profile tab shows which ones to add first.
Fallback order
For Reddit, Larvabot tries these in order and skips any that aren't set up, are out of free quota or are busy.
- 1F5Bot email alerts (via IMAP)
- 2Reddit API (legacy app OAuth)
- 3Reddit via Larvabot's relay
- 4Reddit public JSON
- 5Reddit RSS
- 6Web search (site:reddit.com)
More communities tools
Curious why F5Bot made the cut? F5Bot in the free stack →