The free stack behind Larvabot
Larvabot doesn't resell API calls. It plugs into free tiers you sign up for yourself, uses several providers for each job so one busy service never stops you, and puts a hard cap on every metered one.
Free-tier details checked September 2026. Providers change their plans, so always check their pricing pages.
How the pieces fit
- Step 1
Analyse
AI reads your site and plans the outreach
- Step 2
Find
Search and alerts surface pages and threads
- Step 3
Contact
Contacts from the page itself, checked for a working mailbox
- Step 4
Send & listen
Approved emails go out; replies stop follow-ups
AI
Reads, scores and writes. Several free providers, tried in order.
Search
Finds the pages worth contacting. Monthly quotas first, one-time credits after.
Contacts
Finds who to write to, from the page itself first.
Sends from your own domain, reads replies from your own inbox.
Communities
Threads where people ask for what you built.
Infrastructure
Free DNS, forwarding and deliverability checks.
Why it stays free: the quota guard
Every metered provider has a hard cap just below its free limit. Larvabot counts each call before making it, and for Tavily, Serper and Hunter it also checks what the provider itself reports as remaining.
How the quota guard works →