Select 2-3 protocols for a side-by-side comparison of features, maturity, and ecosystem support.
Select protocol 1... AG-UI Agent Communication Language (FIPA ACL) Agent Network Protocol (ANP) Agent Protocol Agent-to-Agent Protocol (A2A) Agent-to-Agent Protocol (A2A) AutoGen Constitutional AI CopilotKit/CopilotKit CrewAI Guardrails AI HTTP 402 Payment Protocol (x402) LangChain Memory LangGraph MemGPT / Letta Model Context Protocol Mouseww/anything-analyzer OWASP LLM Top 10 OpenAI Assistants API OpenAI Function Calling PennyroyalTea/gibberlink RAIT-09/obsidian-agent-client Swarm (OpenAI) Tool Use (Anthropic) Zep getsentry/XcodeBuildMCP machinepulse-ai/world2agent mobile-next/mobile-mcp open-gitagent/gitagent-protocol openclaw/acpx sendaifun/solana-agent-kit
Select protocol 2... AG-UI Agent Communication Language (FIPA ACL) Agent Network Protocol (ANP) Agent Protocol Agent-to-Agent Protocol (A2A) Agent-to-Agent Protocol (A2A) AutoGen Constitutional AI CopilotKit/CopilotKit CrewAI Guardrails AI HTTP 402 Payment Protocol (x402) LangChain Memory LangGraph MemGPT / Letta Model Context Protocol Mouseww/anything-analyzer OWASP LLM Top 10 OpenAI Assistants API OpenAI Function Calling PennyroyalTea/gibberlink RAIT-09/obsidian-agent-client Swarm (OpenAI) Tool Use (Anthropic) Zep getsentry/XcodeBuildMCP machinepulse-ai/world2agent mobile-next/mobile-mcp open-gitagent/gitagent-protocol openclaw/acpx sendaifun/solana-agent-kit
Select protocol 3 (optional)... AG-UI Agent Communication Language (FIPA ACL) Agent Network Protocol (ANP) Agent Protocol Agent-to-Agent Protocol (A2A) Agent-to-Agent Protocol (A2A) AutoGen Constitutional AI CopilotKit/CopilotKit CrewAI Guardrails AI HTTP 402 Payment Protocol (x402) LangChain Memory LangGraph MemGPT / Letta Model Context Protocol Mouseww/anything-analyzer OWASP LLM Top 10 OpenAI Assistants API OpenAI Function Calling PennyroyalTea/gibberlink RAIT-09/obsidian-agent-client Swarm (OpenAI) Tool Use (Anthropic) Zep getsentry/XcodeBuildMCP machinepulse-ai/world2agent mobile-next/mobile-mcp open-gitagent/gitagent-protocol openclaw/acpx sendaifun/solana-agent-kit
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