Freemium AI Agents: Free Tiers to Paid Upgrades
As of Aug 2, 2026, KanonAgent tracks 738 AI agents on this pricing model; this page covers the top 14 by real traction. Prices are quoted from each product's own page — where it is unclear we say so rather than guess.
Freemium lets buyers test AI agents at zero cost before paying for higher limits or features. It suits users who need to validate tools like schedulers or coding harnesses without commitment. Pick this model when usage is unpredictable or you want to scale only after proving value.
Updated 2026-08-02 · 14 products · live data from KanonAgent
1. ECC236.9k upvotes
ECC gives a free agent harness for Claude Code and Cursor optimization, with Pro at $19 per seat monthly for teams needing performance skills.
2. Postiz$182k/mo
Postiz starts free as an agentic social media scheduler and offers self-hosted use with no monthly fee for ongoing automation.
3. Agent-Reach64.2k upvotes
Agent-Reach provides free internet search across Twitter, Reddit and more for AI agents, with proxy access at $1 per month.
4. Adspirer$55k/mo
Adspirer offers a free AI paid-media agent for founders and marketers, upgrading to $40 monthly for full campaign management.
5. Web3Forms$34k/mo
Web3Forms includes a free contact-form API with Pro plans for modern websites needing higher volume or features.
6. Promptwise$26k/mo
Promptwise runs on freemium with subscriptions and top-ups for generative AI video, image and related tools.
7. Sleek$23k/mo
Sleek starts free for turning ideas into mobile app designs and adds paid plans for advanced workflows.
8. FriendFilter + GroupFilter$9k/mo
FriendFilter + GroupFilter provide free Facebook management extensions, upgrading to Pro at $49 monthly for power users.
9. Kortex-Notebooklm$3k/mo
Kortex-Notebooklm is free to transform NotebookLM into a knowledge base, with Pro at $3.75 monthly for deeper connections.
10. Kome$2k/mo
Kome delivers free instant summaries and bookmarks, upgrading to $5.99 monthly for heavier use.
11. BillionVerify$1k/mo
BillionVerify offers free email verification for SMEs, with paid plans starting at $20 for higher volumes.
12. Convitede$1k/mo
Convitede starts free for creating personalized invitations, upgrading to R$10 monthly for full styling options.
13. Agentplace AI Agents703 upvotes
Agentplace AI Agents are free at $0 monthly to create specialized agents for real tasks and workflows.
14. Publora695 upvotes
Publora gives a free publishing API for agents across 10 platforms, with plans from $2.99 monthly for expanded reach.
Before you commit
Check seat-based pricing like ECC's $19 per seat before committing for teams. Review self-host options such as Postiz to avoid ongoing fees. Verify usage limits on free tiers for tools like Agent-Reach proxies or Kome summaries. Confirm whether paid upgrades unlock only volume or also new agent capabilities. Test data export and integration restrictions on free plans before scaling.
FAQ
What does freemium mean here?
Free core access plus optional paid upgrades for more features, seats or usage across the listed agents.
Are self-hosted options truly free?
Postiz allows self-hosting with no monthly fee after the free start.
How do I avoid surprise costs?
Review seat pricing, proxy fees and top-up structures listed for each agent before upgrading.