Sim
Website & App Development
Open-source AI workspace for building and managing agents with 1,000+ integrations
- AI Agent Builder
- Agentic Workflows
- LLM Orchestration
Freemium
Best AI Tools to Build AI Agents
82 tools
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Smallest.ai
Audio & Voice
Power enterprise voice with AI APIs for TTS, STT, and voice agents.
- Text-to-Speech
- Speech-to-Text
- Voice Agents
Whisper Internet Infra AI Context
AI Infrastructure
Provides real-time internet infrastructure context via API or MCP for IP/domain analysis.
- Threat Intelligence
- Infrastructure Intelligence
- BGP Hijack Detection
Freemium
Eclatira
AI Agents
Build conversational agents with voice, camera, and screen sharing integrated with APIs and apps.
- Conversational AI
- Real-Time Video
- API Integration
Freemium
Kopai
AI Agents
Builds and sells AI agents with per-message pricing
- AI Agents
- AI Marketplace
- Monetize AI
Paid
MaxKB
AI Agents
Open-source platform for building enterprise-grade agents.
Free
MiMoCode
Developer Tools
Open-source AI coding agent with persistent memory and subagent orchestration.
- Code Agents
- Persistent Memory
- Subagent Orchestration
Free
MindPal
Website & App Development
Builds AI agents and workflows for coaches, consultants, and course creators to scale client support and content delivery.
- AI Agents
- AI Coaching
- AI Course Tools
Freemium
Montage
AI Agents
Accelerates UI rendering and reduces token usage for AI agents.
Freemium
OmniVibe
AI Agents
AI agent marketplace and workspace for business, research, and creative work.
- AI Agents
- AI Assistants
- Agent Marketplace
Paid
Skydive
AI Agents
Build AI agents in the cloud for real work across tools.
- AI Agents
- Cloud Computing
Paid
Spine
AI Agents
Enables cloud-based multi-agent work and local-first agent orchestration through research-backed systems.
Freemium
Surfn
AI Agents
Builds conversational AI agents for engagement, leads, and sales.
- AI Agent Builder
- Lead Generation
- Marketing Tool
Freemium
AI Assistant for SMBs
Automation
Free playbook with 50+ AI automations for entrepreneurs to save 10-20 hours weekly.
- AI Automation
- Workflow Automation
Free
DeerFlow
Developer Tools
Open-source long-horizon SuperAgent harness for research, coding, and creation.
- Multi-Agent Orchestration
- Workflow Automation
Free
Dograh
Audio & Voice
Open-source voice agent platform for self-hosting and custom models.
- Voice Agent Builder
- Self-Hosted AI
- Regulated Compliance
Paid
Google Agent Development Kit (ADK)
Developer Tools
Open-source Python toolkit for building, evaluating, and deploying AI agents with flexibility and control.
Free
Kalcend
AI Agents
Build and deploy AI employees for support, sales, and operations on messaging platforms.
- AI Employee
- AI Workforce
- No-Code AI Agent
Paid
Tycoon AI
AI Agents
Coordinates AI agents and teams, manages tasks and outcomes.
- AI CEO
- AI Agents
- Multi-Agent Coordination
Paid
Watermelon
Customer Support
Automates customer service by handling repetitive questions with an AI agent.
Freemium
Showing 21–40 of 82 tools