✓
Tool
Category
Pricing
Free?
Updated
SWE-agent
AI Agents
Free
✓
Mar 2026
→
Research AI agent from Princeton that resolves GitHub issues by writing and testing code
Best for: software-engineering
Hugging Face Agents
AI Agents
Free
✓
Mar 2026
→
Agent framework built into Hugging Face Transformers for model-powered tool use
Best for: Hugging Face
Zapier AI Agents
AI Agents
Freemium
✓
Mar 2026
→
Autonomous AI agents on Zapier with access to 6,000+ app integrations
Best for: Zapier
ControlFlow
AI Agents
Free
✓
Mar 2026
→
Python framework for building structured, controllable AI workflows
Best for: controlflow
Firecrawl
AI Agents
Freemium
✓
Mar 2026
→
Web scraping service that converts websites to clean markdown for AI and RAG pipelines
Best for: web-scraping
Portkey AI
AI Agents
Freemium
✓
Mar 2026
→
AI gateway providing unified LLM access with reliability features and observability
Best for: AI-gateway
Arize Phoenix
AI Agents
Freemium
✓
Mar 2026
→
Open-source AI observability tool with interactive tracing and RAG evaluation
Best for: observability
Humanloop
AI Agents
Freemium
✓
Mar 2026
→
Collaborative platform for prompt management, evaluation, and LLM fine-tuning
Best for: prompt-management
Stagehand
AI Agents
Free
✓
Mar 2026
→
AI-native browser automation framework using LLMs to interact with web pages
Best for: browser-automation
Helicone
AI Agents
Freemium
✓
Mar 2026
→
Open-source LLM proxy for logging, monitoring, and analyzing all AI API calls
Best for: LLM-proxy
PromptLayer
AI Agents
Freemium
✓
Mar 2026
→
Prompt management platform with logging and analytics for LLM API calls
Best for: prompt-management
Magical
AI Agents
Freemium
✓
Mar 2026
→
AI Chrome extension that automates repetitive browser tasks, data entry, and messaging
Best for: productivity
Thoughtly
AI Agents
Freemium
✓
Mar 2026
→
AI voice agent platform for building phone agents for sales and support
Best for: voice-agent
XAgent
AI Agents
Free
✓
Mar 2026
→
Open-source autonomous agent with hierarchical planning and sub-agent coordination
Best for: autonomous
LlamaIndex ✓
AI Agents
Freemium
✓
Mar 2026
→
Framework for building production RAG systems and data-connected AI agents
Best for: rag
MultiOn
AI Agents
Freemium
✓
Mar 2026
→
Personal AI agent that browses the web and completes tasks autonomously
Best for: browser-automation
GPT-Pilot
AI Agents
Free
✓
Mar 2026
→
AI developer agent that iteratively builds production apps with human collaboration
Best for: developer-agent
SuperAGI
AI Agents
Free
✓
Mar 2026
→
Open-source framework for building and running autonomous AI agents at scale
Best for: agents
Questflow
AI Agents
Freemium
✓
Mar 2026
→
Natural language multi-agent workflow platform for business automation
Best for: multi-agent
Voiceflow
AI Agents
Freemium
✓
Mar 2026
→
Collaborative platform for designing and deploying voice and chat AI agents
Best for: voice-agents
Browserbase
AI Agents
Freemium
✓
Mar 2026
→
Cloud browser infrastructure for AI agents to automate web interactions at scale
Best for: browser-automation
Steel Browser
AI Agents
Freemium
✓
Mar 2026
→
Open-source browser API for AI agents with managed sessions and proxy support
Best for: browser-API
Exa AI
AI Agents
Freemium
✓
Mar 2026
→
Semantic search engine and API for AI agents using embedding-based retrieval
Best for: semantic-search
Agency Swarm
AI Agents
Free
✓
Mar 2026
→
Open-source framework for creating collaborative AI agent networks with specialized roles
Best for: agency-swarm
Lyzr
AI Agents
Freemium
✓
Mar 2026
→
Enterprise AI agent studio with pre-built templates and on-premises deployment options
Best for: enterprise
AgentScope
AI Agents
Free
✓
Mar 2026
→
Fault-tolerant distributed multi-agent platform from Alibaba for production systems
Best for: multi-agent
Relevance AI
AI Agents
Freemium
✓
Mar 2026
→
No-code platform for building and deploying AI agent teams for business
Best for: agents
Smolagents
AI Agents
Free
✓
Mar 2026
→
Lightweight Hugging Face agent framework where LLMs write code to use tools
Best for: Hugging Face
ChatDev
AI Agents
Free
✓
Mar 2026
→
Multi-agent software company simulation where AI roles collaborate to build software
Best for: multi-agent
Steamship
AI Agents
Freemium
✓
Mar 2026
→
Cloud hosting platform for AI agents with built-in storage and multi-tenancy
Best for: agent-hosting
Fixie AI
AI Agents
Freemium
✓
Mar 2026
→
Platform for building conversational AI agents with memory, tools, and deployable hosting
Best for: conversational
Browserless
AI Agents
Freemium
✓
Mar 2026
→
Cloud-hosted headless browser service for web automation and AI agent workflows
Best for: headless-browser
Semantic Kernel
AI Agents
Free
✓
Mar 2026
→
Microsoft SDK for building AI agents with plugins and memory
Best for: semantic-kernel
Showing 50 of 65 tools — page 1 of 2