Ranked by runs included a month (2)
These state their free allowance in the same unit, so they can be ordered. Most first.
| Tool | runs included | Stated limits | What makes you upgrade | First paid price | Kind |
|---|---|---|---|---|---|
 MindStudioRead Oct 29, 2026 |
1,000 | Free plan with one agent and 1,000 runs per month, plus usage costs for models"1,000 runs / month"Source | Individual has no cap on runs | $20/moIndividual | Free plan |
 Stack AIRead Oct 29, 2026 |
500 | Free plan at $0/month with 500 runs per month, 2 projects, 1 seat, community support on Discord. Upgrade for more capacity."Start for free. Upgrade to get the capacity that exactly matches your team's needs."Source | Upgrade for more capacity | No price found | Free plan |
Other free plans (9)
Their limits are stated in different terms, so they aren't ranked against each other. Ordered by first paid price.
| Tool | Stated limits | What makes you upgrade | First paid price | Kind |
|---|---|---|---|---|
 HubSpot Breeze AgentsRead Oct 29, 2026 |
Free Marketing Hub tools for up to 2 users, no credit card required"Free for up to 2 users. No credit card required."Source | Not found | $20/userMarketing Hub Starter (pay ) | Free plan |
 Zapier AgentsRead Oct 29, 2026 |
Agents Free: 400 activities per month with live data sources, web browsing and Chrome extension access"400 activities per month"Source | Not found | $29.99/moPlatform Professional ( view) | Free plan |
 Jotform AI AgentsRead Oct 29, 2026 |
Starter plan is free with all features included: 5 agents, 100 monthly conversations, 10,000 sessions, 50 voice minutes, 250 SMS, 10M characters knowledge base."Yes, the Starter plan is best for individuals or small teams just starting their data-collection journeys."Source | Switch to a paid plan to increase limits | $39/moBronze | Free plan |
 LangChain (LangGraph)Read Oct 29, 2026 |
Developer plan: $0 per seat, 1 seat, up to 5k base traces per month and community support, then pay-as-you-go. Fleet includes 7 LSU per organization each month; after that Fleet pauses new runs until reset or upgrade."Up to 5k base traces / mo, then pay-as-you-go"Source | Developer plan: $0 per seat, 1 seat, up to 5k base traces per month and community support, then pay-as-you-go | $39/userPlus | Free plan |
 LiveChatAIRead Oct 29, 2026 |
Free plan with 250 message credits, 500K characters, 1 chatbot, 1 seat, basic analytics. Pricing page says it is forever free."No risk. Forever free plan available."Source | More than 250 message credits: Basic includes 4,000 | $39/moBasic | Free plan |
 BotpressRead Oct 29, 2026 |
Free plan with 100 conversations, 3 seats, 3 AI agents, no top-ups or overages"100 conversations No top-ups or overages"Source | More than 100 conversations: Plus includes 250 | $150/mo yearlyPlus | Free plan |
 CrewAIRead Oct 29, 2026 |
Free Basic plan with visual editor, AI copilot, GitHub integration and 50 workflow executions per month (maximum 50)"50 workflow executions/month"Source | Not found | No price found | Free plan |
 Google Vertex AI Agent BuilderRead Oct 29, 2026 |
Monthly free tier per account on agent resources: 50 Agent Compute hours, 100 GiB-hours of Agent Memory, 1 GiB-month of Agent Storage; paid rates apply above that."A free usage tier applies per month, per account for each resource."Source | Not found | $0.085/vCPU-hour | Free plan |
 MakeRead Oct 29, 2026 |
Free plan with 1,000 credits per month (1 MB data storage, 1 data store), no time limit, no card required. When credits run out, scenarios stop until credits are added or the plan is upgraded."If you are on the Free plan, you have 1000 credits per month, which equals 1 MB of data storage and 1 data store."Source | When credits run out, scenarios stop until credits are added or the plan is upgraded | No price found | Free plan |
Free trial only (5)
- DronaHQ: One month free trial of the Business plan, no credit card required
- FlowHunt: 7-day free trial limited to 5 credits
- n8n: Free trial of n8n Cloud with 1,000 executions and no credit card; Business plan trial is 14 days and needs a card
- Pickaxe: 14-day free trial
- Voiceflow: Free trial for agencies and partners, no credit card required (length not stated)
Questions
Which AI agent builders are free?
11 have a free plan you can keep, including Botpress, CrewAI, Google Vertex AI Agent Builder, HubSpot Breeze Agents, Jotform AI Agents, LangChain (LangGraph).
What do you pay after a free plan?
The lowest first paid price among tools with a free plan is $20/user (HubSpot Breeze Agents). Read from each vendor's own page.
How this page is made
Every limit is the vendor's own, read from its pages and quoted. A tool counts as a free plan when the text describes something you can keep using; a fixed number of days or a single batch of credits is listed separately. We don't test the plans. How prices are read.