🤖 Free options · limits checked Oct 16, 2026
Free AI tools to set up or run AI agents
Short answer: start with n8n on its free plan (self-host; Cloud 14-day trial). We found 9 tools for this job with a free tier we verified in the last 30 days.
Every free option, with the catch
| Tool | Free tier, as listed | The catch | Paid from | Last checked |
|---|---|---|---|---|
| n8n Top pick | Yes (self-host); Cloud 14-day trial | Runs out: a one-time allowance or trial, not a monthly reset | €20/mo Starter, billed annually | |
| Lindy | Yes ($50 credits, 7 days) | Limits not published in detail; check the vendor's page | $49.99/user/mo Team (5,000 credits) | |
| CrewAI | Yes (50 executions/mo) | Usage caps reset on a schedule; heavy use needs a paid plan | Free cloud Basic; Enterprise custom | |
| Builder Agent-Native | Yes (open source) | You host it yourself or pay your own model costs | Not verified | |
| LangGraph | Yes (open source) | You host it yourself or pay your own model costs | Not verified | |
| Mastra | Yes (Apache 2.0) | You host it yourself or pay your own model costs | Not verified | |
| Browserbase | Yes | Limits not published in detail; check the vendor's page | $20/mo Developer | |
| Chainguard Workspaces | Yes (30-day beta trial) | Runs out: a one-time allowance or trial, not a monthly reset | Compute-based (beta) | |
| Autonomous Harness | Yes (open source; Mac/Linux desktop free) | You host it yourself or pay your own model costs | Free OSS; optional Harness hardware $149 |
When it's worth paying
Upgrade when you hit the free limits every week, or when you need commercial rights. The cheapest verified paid plans for this job right now: Browserbase from $20/mo Developer; Lindy from $49.99/user/mo Team (5,000 credits); Autonomous Harness from Free OSS; optional Harness hardware $149.
See the full comparison, paid tools included: best AI tools to set up or run AI agents.
How we check: every price and free tier on this page comes from the vendor's own pricing page, with the date we checked it. If we can't verify something, we say so. Found a wrong price? Email info@usethissi.com and we fix it within 24 hours.