AI Agents
Discover AI agents, frameworks, and tools shaping the ecosystem.
A decade ago, software was what you wrote. Today, software is what an AI writes while you watch. AI agents are the next shift: autonomous systems that perceive their environment, make decisions, take action, and iterate. They're not just chatbots that answer questions. They're systems that complete multi-step tasks independently: writing code, running tests, debugging, browsing the web, filing bugs, drafting reports.
Agents are specialized by domain. Coding agents like GitHub Copilot and Cursor use Claude or GPT-4 with deep IDE integration and version control awareness. They understand context beyond a single file. Research agents like Perplexity use web search, citation tracking, and academic database access to synthesize knowledge. Creative agents handle content generation, design, and copywriting. General-purpose agents like multi-turn Claude conversations can orchestrate workflows across multiple tools. Frameworks like LangChain, CrewAI, and Anthropic's Model Context Protocol (MCP) abstract away the implementation details and let you build agents by composition.
This directory catalogs agents and frameworks we're tracking. We curate this list based on production maturity, community adoption, and technical capability. For a deeper dive into what agents are, their capabilities, and how they'll reshape work, see our explainer on what are AI agents. If you're building an agent, the resources section below has links to documentation for the major frameworks.
Agent Directory
Claude Code
An agentic CLI tool that lets Claude operate directly in your terminal, reading files, editing code, running commands, and managing git workflows autonomously.
Usage-based via Claude API
Launched 2025
Cursor
An AI-native code editor built on VS Code that provides inline code generation, multi-file editing, and codebase-aware chat powered by multiple foundation models.
Free tier, Pro $20/mo, Business $40/mo
Launched 2023
GitHub Copilot
An AI pair programmer integrated into popular editors that suggests code completions, generates functions from comments, and offers chat-based coding assistance.
Individual $10/mo, Business $19/mo, Enterprise $39/mo
Launched 2022
Windsurf
An AI-powered IDE that combines copilot and agent capabilities, allowing flows where the AI and developer collaborate on code changes across an entire project.
Free tier, Pro $15/mo, Teams $30/mo
Launched 2024
Perplexity
An AI-powered answer engine that searches the web in real time, synthesizes information from multiple sources, and provides cited responses to complex questions.
Free tier, Pro $20/mo
Launched 2022
Elicit
A research assistant that helps find and analyze academic papers, extract key claims, and summarize findings across large bodies of scientific literature.
Free tier, Plus $10/mo, Enterprise custom
Launched 2021
Consensus
A search engine that uses AI to find and synthesize results from peer-reviewed scientific research, providing evidence-based answers with citations.
Free tier, Premium $9.99/mo
Launched 2022
ChatGPT
A general-purpose AI assistant that can handle conversation, writing, coding, analysis, and web browsing, with plugin and custom GPT support for specialized tasks.
Free tier, Plus $20/mo, Team $25/mo, Enterprise custom
Launched 2022
Gemini
Google's multimodal AI assistant with deep integration into Google Workspace, Search, and Android, capable of handling text, images, code, and long documents.
Free tier, Advanced $19.99/mo (included with Google One AI Premium)
Launched 2023
Claude
A helpful AI assistant known for nuanced instruction-following, long-context understanding, and careful reasoning across writing, analysis, coding, and research tasks.
Free tier, Pro $20/mo, Team $25/mo, Enterprise custom
Launched 2023
Midjourney
A leading AI image generation tool that creates high-quality, artistic images from text prompts, known for its distinctive aesthetic style and photorealistic output.
Basic $10/mo, Standard $30/mo, Pro $60/mo
Launched 2022
DALL-E 3
OpenAI's image generation model integrated into ChatGPT and available via API, offering precise prompt adherence and the ability to render text within images.
Included with ChatGPT Plus, API usage-based
Launched 2023
Suno
An AI music generation platform that creates full songs with vocals, instruments, and lyrics from text prompts or custom lyrics input.
Free tier, Pro $10/mo, Premier $30/mo
Launched 2023
LangChain
An open-source framework for building LLM-powered applications with chains, agents, retrieval-augmented generation, and memory, supporting multiple model providers.
Open source (LangSmith platform has paid tiers)
Launched 2022
CrewAI
A framework for orchestrating role-playing AI agents that collaborate on complex tasks, allowing developers to define agent roles, goals, and delegation patterns.
Open source, Enterprise cloud plans available
Launched 2024
AutoGen
An open-source framework for building multi-agent conversational systems where multiple AI agents can collaborate, debate, and coordinate to solve tasks.
Open source
Launched 2023
OpenAI Assistants API
A platform API for building AI assistants with persistent threads, file retrieval, code interpretation, and function calling built into OpenAI's hosted infrastructure.
Usage-based via OpenAI API
Launched 2023
Model Context Protocol (MCP)
An open protocol that standardizes how AI applications connect to external data sources and tools, enabling plug-and-play integrations for any MCP-compatible client.
Open source protocol
Launched 2024
Build an Agent
Resources and documentation to help you build your own AI agents.
Anthropic Claude MCP Docs
Learn how to build integrations with the Model Context Protocol for tool-use and data access.
OpenAI Assistants API
Build AI assistants with persistent threads, file retrieval, and function calling.
LangChain Documentation
Open-source framework for building LLM-powered apps with chains, agents, and retrieval.
CrewAI Getting Started
Orchestrate role-playing AI agents that collaborate on complex, multi-step tasks.