Agent Protocol Standards MCP Servers

Protocols and frameworks for agent-to-agent communication, interoperability, and orchestration (A2A, ACP, HAP, ASAP). Does NOT include individual agent implementations, LLM integrations, or application-specific automation tools.

There are 49 agent protocol standards servers tracked. 1 score above 50 (established tier). The highest-rated is archestra-ai/archestra at 67/100 with 3,548 stars. 1 of the top 10 are actively maintained.

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#	Server	Score	Tier	Stars	Language
1	archestra-ai/archestra Enterprise AI Platform with guardrails, MCP registry, gateway & orchestrator	67	Established	3,548	TypeScript
2	adriannoes/asap-protocol Standard protocol for agent-to-agent communication with stateful...	49	Emerging	12	Python
3	xemantic/xemantic-ai-tool-schema-mdc Adapting xemantic-ai-tool-schema to Model Context Protocol kotlin-sdk Tool input	39	Emerging	7	Kotlin
4	nookprotocol/nookplot Decentralized coordination infrastructure for AI agents — identity,...	38	Emerging	12	TypeScript
5	alDuncanson/Handler A2A Protocol client and developer toolkit.	33	Emerging	38	Python
6	computeruseprotocol/computeruseprotocol Computer Use Protocol is a universal schema for AI agents to perceive and...	32	Emerging	26	—
7	YanCotta/project-synapse A production-grade demo of a multi-agent system showcasing Agent...	32	Emerging	3	Python
8	tanaikech/Consolidating-Generative-AI-Protocols-A-Single-Server-Solution-for-MCP-and-A2A A new unified Google Apps Script now deploys both Model Context Protocol...	31	Emerging	2	JavaScript
9	spinualexandru/humanagentprotocol A universal protocol for symbiotic collaboration between humans and...	24	Experimental	3	TypeScript
10	nachtschatt3n/ai-sre 🤖 AI SRE - Intelligent Site Reliability Engineering Toolbox. Lean...	24	Experimental	1	Python
11	agentkitai/agentlens Open-source observability and audit trail platform for AI agents....	24	Experimental	4	TypeScript
12	rrohitramsen/AgentTel Agent-ready telemetry — enriches OpenTelemetry spans across backend (JVM)...	24	Experimental	3	Java
13	superlowburn/agentrank Google for AI agents — live ranked index of 25,000+ MCP servers and agent...	24	Experimental	—	Astro
14	AndreaRettaroli/m2m Machine 2 Machine Protocol, x402 + A2A + MCP	23	Experimental	1	Python
15	Khaledayman9/A2A-Agent-Orchestration-System A distributed multi-agent system that orchestrates complex tasks across...	23	Experimental	—	Python
16	Sutr-dev999/bytepack Fixed-size binary encoding for AI agent communication. 20x more compact than JSON.	23	Experimental	1	Python
17	AgentAnycast/agentanycast-mcp MCP server for P2P agent networking — discover and talk to AI agents...	22	Experimental	—	Python
18	cthulhutoo/agentry-mcp Agentry — AI Agent Registry & Discovery MCP Server. Search, register, and...	22	Experimental	—	—
19	agentralabs/agentic-data Universal data comprehension for AI agents — infer schemas, track lineage,...	22	Experimental	—	Rust
20	agentralabs/agentic-connect Universal external interface engine for AI agents — 123 MCP tools, 18...	22	Experimental	—	Rust
21	EponaLab/universal-agent-protocol Proposal for universal agent-application integration: ACP (communication) +...	21	Experimental	—	—
22	mingulov/dejaship A global intent ledger and coordination protocol for autonomous AI agents....	21	Experimental	—	Python
23	bolufagbulu/AI-Human-Collaboration-Protocol 🤝 Enable seamless cooperation between AI and humans through a structured...	21	Experimental	—	PowerShell
24	a2a-settlement/a2a-settlement-mcp MCP scaffold for A2A settlement	21	Experimental	—	Python
25	khalidsaidi/a2abench A2ABench — agent-native developer Q&A (REST + MCP + A2A)	21	Experimental	—	TypeScript
26	Matukas12/agentlens Monitor and explain AI agent behavior with real-time observability and clear...	21	Experimental	—	Python
27	danicyber1/agent-semantic-protocol Connect AI agents using semantic intent vectors for dynamic discovery,...	21	Experimental	—	Go
28	SakuttoWorks/agent-commerce-core High-performance Python normalization engine for Agent-Commerce-OS. Handles...	21	Experimental	—	Python
29	samuelvinay91/mcp-a2a MCP Server/Client implementation and A2A protocol with AgentCards for agent...	21	Experimental	—	Python
30	NAGHUL001/Sentinel-AIOps Transform CI/CD failure logs into real-time automated anomaly detection and...	21	Experimental	—	Python
31	jsulmont/mcp-lisp Common Lisp SDK for Model Context Protocol (MCP) and Agent-to-Agent Protocol (A2A)	21	Experimental	4	Common Lisp
32	Acquarts/A2A-MCP-Multiagent-Smart-RFP Multi-agent system that automates the creation of professional commercial...	21	Experimental	—	Python
33	victorRT3868/shopping-agent-ai 🛒 Explore the AI Shopping Agent to compare prices and generate smart...	19	Experimental	1	Python
34	the-artinet-project/cli An interactive command-line interface that uses the Agent2Agent (A2A) &...	18	Experimental	14	—
35	achrafjarrou/atlas-orchestration Universal Multi-Agent Orchestration Platform — A2A v0.3 + LangGraph + MCP + SHA-256	15	Experimental	1	Python
36	amitpuri/ai-agents-basics OpenAGI Codes AI Agents Basics	15	Experimental	—	Python
37	anjijava16/Summoner_A2A Google A2A with Summoner apporach From summoner as Orchestor agent calling...	14	Experimental	—	Python
38	AiAgentKarl/agent-server-card-mcp MCP Server for server card generation, validation and discovery —...	14	Experimental	—	Python
39	AiAgentKarl/a2a-protocol-mcp-server Bridge MCP with Google Agent2Agent Protocol — agent discovery, task...	14	Experimental	—	Python
40	AiAgentKarl/agent-directory-mcp-server Agent-to-Agent service directory — discover, register and rate AI services	14	Experimental	—	Python
41	AiAgentKarl/anp-bridge-mcp-server MCP bridge for the Agent Network Protocol (ANP) — DID resolution, agent...	14	Experimental	—	Python
42	AiAgentKarl/a2a-protocol-mcp-server-js JavaScript MCP Server — Google Agent2Agent Protocol bridge for agent...	14	Experimental	—	JavaScript
43	AiAgentKarl/agent-validator-mcp-server Lighthouse for AI agents — test if APIs are properly agent-accessible	14	Experimental	—	Python
44	openagentidentityprotocol/aip-python Agent Identity Protocol Python Implementation	13	Experimental	—	Python
45	chazmaniandinkle/FEM-Protocol Introduces "Secure Hosted Embodiment" for collaborative AI: where guest...	13	Experimental	—	Go
46	tzervas/aphelion-agent-security-framework A lightweight, modular security framework for AI/ML models, agents, tools,...	13	Experimental	—	Python
47	agentidx/agentindex AI Agent Discovery Platform — Find any AI agent by capability. 24K+ agents indexed.	13	Experimental	—	Python
48	Daniel-jcVv/DataCenter-AI-Monitor AI-powered infrastructure monitoring system for data centers. Combines n8n...	13	Experimental	—	Python
49	kuldeepsingh99/google-a2a About Pure java implementation of Google A2A protocol. This project...	12	Experimental	3	Java