Free plans only

5 Best Free AI Agent Builders of 2026

By the Rankozo research desk · Updated November 9, 2026

5 of the 10 tools in our best ai agent builders ranking offer a permanent free plan. MindStudio scores highest among them at 8.6 out of 10.

1. 01

   MindStudio

   Operations and product teams that want to build many internal agents without paying per run.

   Free plan with one agent and 1,000 runs a month; Individual $16 per month billed yearly or $20 monthly, plus usage

   Full entry, No. 1 overall

   Paid from

   $16

   Score 8.6

2. 02

   Zapier Agents

   Teams that already run Zapier automations and want agents that act in the same connected apps.

   Free plan with 400 activities a month; Agents Pro $33.33 per month billed annually ($400 a year) for 1,500 activities

   Full entry, No. 2 overall

   Paid from

   $33.33

   Score 8.4

3. 03

   n8n

   Technical operations teams that want agents inside larger workflows and the option to self-host.

   See vendor pricing (USD check pending)

   Full entry, No. 4 overall

   Paid from

   Free plan

   Score 8.2

4. 04

   Dify

   Product teams building customer-facing AI apps that need model choice, knowledge bases and an API.

   Free Sandbox plan with 200 message credits; Professional $590 per workspace per year (about $49.17 a month)

   Full entry, No. 5 overall

   Paid from

   $49.17

   Score 8.1

5. 05

   Botpress

   Support teams that want to deploy customer-facing agents with a help center and predictable per conversation costs.

   Free plan with 100 conversations; Plus $150 per month billed annually for 250 conversations

   Full entry, No. 7 overall

   Paid from

   $150

   Score 7.8

Scores and prices come from our Best AI Agent Builders ranking, which uses one method for every tool. Questions or corrections: editorial@rankozo.com