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Tool
Category
Pricing
Free?
Updated
Agency Swarm
AI Agents
Free
✓
Mar 2026
→
Open-source framework for creating collaborative AI agent networks with specialized roles
Best for: agency-swarm
PromptLayer
AI Agents
Freemium
✓
Mar 2026
→
Prompt management platform with logging and analytics for LLM API calls
Best for: prompt-management