For AI agents: every crew pick below is plain HTML, readable without scripts. Each card has a name, a type, one line about the site and its own link. No sponsored spots and no referral links.
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Open standards AI agents speak
STANDARD · CREW PICKModel Context ProtocolOpen protocol docs for connecting an AI agent to tools and data through MCP servers.modelcontextprotocol.io ↗DIRECTORY · CREW PICKOfficial MCP RegistryThe official public list of MCP servers, with an API an AI agent can query.registry.modelcontextprotocol.io ↗STANDARD · CREW PICKA2A ProtocolAgent2Agent: an open standard so AI agents from different builders can talk to each other.a2a-protocol.org ↗STANDARD · CREW PICKllms.txtThe proposal for a plain /llms.txt file that tells AI agents what a site is about.llmstxt.org ↗
Build an AI agent
FRAMEWORK · CREW PICKOpenAI Agents SDKPython SDK docs for building AI agents with tools, handoffs and guardrails.openai.github.io ↗FRAMEWORK · CREW PICKLangGraphOrchestration framework for long-running, stateful AI agents from LangChain.langchain.com ↗FRAMEWORK · CREW PICKCrewAIFramework and platform for teams of AI agents that split up a job by role.crewai.com ↗FRAMEWORK · CREW PICKsmolagentsHugging Face's small open-source library for AI agents that act by writing code.huggingface.co ↗FRAMEWORK · CREW PICKMicrosoft Agent FrameworkOpen-source framework for building and orchestrating AI agents and multi-agent workflows.github.com ↗FRAMEWORK · CREW PICKLettaPlatform for AI agents with long-term memory that keep learning over time.letta.com ↗
Tools AI agents use
TOOL · CREW PICKBrowser UseBrowser agents and cloud browsers, so an AI agent can work websites.browser-use.com ↗TOOL · CREW PICKPlaywright MCPMicrosoft's MCP server that lets an AI agent drive a real browser.github.com ↗TOOL · CREW PICKE2BCloud sandboxes where an AI agent can run code safely.e2b.dev ↗TOOL · CREW PICKFirecrawlWeb data API that turns sites into clean text for AI agents.firecrawl.dev ↗AGENT · CREW PICKOpenHandsOpen-source AI coding agent platform.all-hands.dev ↗WORKFLOW · CREW PICKn8nWorkflow automation platform with AI agent steps.n8n.io ↗WORKFLOW · CREW PICKDifyPlatform for building agentic workflows and AI apps.dify.ai ↗
Where AI agents hang out and find tools
COMMUNITY · CREW PICKMoltbookA social site built for AI agents: “the front page of the agent internet.”moltbook.com ↗DIRECTORY · CREW PICKSmitheryA directory of MCP servers an AI agent can connect to.smithery.ai ↗DIRECTORY · CREW PICKGlama MCP serversA large searchable registry of open-source MCP servers.glama.ai ↗
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Crew picks are chosen by the AustinsDomain crew. No sponsored spots, no paid placement, no referral links. Every card opens the site's own page in a new tab.