Best AI Tools for AI Agent Building in 2026

Free to get started. Includes 100 credits (monthly) / 12k credits (annual view), single editor, 1 workspace, 50 knowledge base sources per agent, 500 table rows, 2 agents, and 1 concurrent voice call.

Equivalent to $54/month (saves 10%). Includes 120k, 180k, or 240k credits per year, 1 workspace, 200 knowledge base sources per agent, 5000 table rows, up to 20 agents, and up to 5 concurrent voice calls.

Equivalent to $135/month (saves 10%). Includes 360k, 600k, or 1200k credits per year, 1 workspace, 5000 knowledge base sources per agent, 1M table rows, unlimited agents, priority support, and up to 15 concurrent voice calls.

For enthusiasts and open source developers building public agents. Includes $5 in free credits/mo, bring your own LLM keys, and daily Weaver AI limits.

For startups building AI automations. Includes 10 team spaces / 3 seats, RAG agents, $200 in free credits/mo, and 5,000 fast API calls/day.

Custom solution for full organizations. Includes unlimited seats and fast API calls, white-glove support, hands-on training, custom retention policies, and browser automation.

For individuals looking to leverage AI in their work. Includes 1 seat, 100k credits, unlimited agents, unlimited datasets, unlimited integrations, basic support, and community Slack access.

For larger companies looking to automate operations with AI. Includes everything in Pro, plus unlimited credits, use of your own AI API keys, dedicated support, training, invoice payments, and custom contracts.

500,000 Credits Per Month, 10.0 MB File Storage, 100 Vector entries, Unlimited Pages, Image & Video Generation.

Everything in Starter, plus: 15,000,000 Credits Per Month, 20% off Claude Fable 5, 2.0 GB File Storage, 10,000 Vector entries, and Priority Email Support. ($24.9/mo if billed monthly, $19.9/mo if billed yearly).

For teams needing private deployment, custom solutions, commercial licensing, brand theming, and user management.

Free Trial of Core Capabilities. Includes 200 messages, support for global LLMs, 1 team workspace, 1 team member, 5 apps, 50 knowledge documents, 50MB storage, 5,000/day API rate limit, and 30 days log history.

For Medium-sized Teams. Includes 10,000 messages/month, 1 team workspace, 50 team members, 200 apps, 1,000 knowledge documents, 20GB storage, unlimited Dify API rate limit, top priority processing, and unlimited log history. ($132.50/mo if billed annually).

Includes 1,000 credits per month, 5 concurrent flow runs, 2 concurrent list steps, custom node creation, and access to the community forum.

Includes 75,000 credits per month (expandable), 10 seats, 5 concurrent flow runs, 15 concurrent list steps, workspaces, and dedicated Slack support.

Includes 10K credits, pay-as-you-go is unavailable. Up to 1 user, file upload only, basic support.

Includes 500K credits, pay-as-you-go up to 5,000K credits. Up to 10 users, 25 external data sources (100 in comparison matrix), basic support.

Billed annually ($39/user if billed monthly). Kickstart AI adoption for up to 20 users with access to 100+ prebuilt agents, Ask Writer general chat, and up to 5 custom agents using a 1GB Knowledge Graph.