PyRank

A2a Protocol Python Packages

Python packages with the GitHub topic a2a-protocol. Sorted by monthly downloads, with stars and forks.
a2aproject
a2a-sdk

Official Python SDK for the Agent2Agent (A2A) Protocol

11.8M 2K 509
SuperagenticAI
superqode

The harness interoperability layer for coding agent. Agent to Agent connect over ACP, A2A and UHP

39K 62 10
dhyansraj
mcp-mesh-core

Enterprise-grade distributed AI agent framework | Develop → Deploy → Observe | K8s-native | Dynamic DI | Auto-failover | Multi-LLM | Python + Java + TypeScript | MCP + A2A + REST

21K 41 6
SuperagenticAI
agenteng

AgentEng: Agent Engineering HQ - CLI, MCP, A2A and Agent Engineering for AgentEng HQ events

6K 0 0
msaleme
agent-security-harness

AI agent security harness, adversarial testing: 640 executable tests in the v4.26.1 release, across MCP, A2A, x402/L402, decision governance, benchmark integrity, human-in-the-loop, skill supply chain. Four target shapes: a verdict must be able to be wrong AND to be right. OWASP Agentic v1.1 T1-T17, AIUC-1 19/20 (2026-Q1/Q2 set), NIST AI 800-2.

5K 32 8
dhyansraj
mcp-mesh

Enterprise-grade distributed AI agent framework | Develop → Deploy → Observe | K8s-native | Dynamic DI | Auto-failover | Multi-LLM | Python + Java + TypeScript | MCP + A2A + REST

4K 41 6
taoq-ai
ziran

ZIRAN finds the vulnerabilities in AI agents that come from tools combining, not from any single prompt. Graph-based tool chain discovery, execution-level side-effect detection, multi-phase campaigns.

4K 10 3
idea-idsia
ant-ai

A lightweight Python framework for building multi-agent systems that communicate via A2A protocol

3K 5 0
acnlabs
acn-client

Open-source infrastructure for AI agents to collaborate - registry, A2A communication, task pool, payments

2K 4 2
Intelligent-Internet
opencode-a2a

Expose OpenCode through A2A with an inbound server surface and embedded outbound client.

2K 32 10
liujuanjuan1984
codex-a2a

Expose Codex through A2A with an inbound server surface and embedded outbound client.

2K 17 1
alDuncanson
a2a-handler

A2A protocol client for your terminal

2K 45 6
BrightbeamAI
chap-coordinator

CHAP, the Collaborative Human Agent Protocol, is a MCP/A2A-compatible runtime for auditable human-agent work: approvals, overrides, handoffs, escalation and verifiable evidence logs.

2K 107 14
aiperceivable
apcore-a2a

Automatic A2A Protocol Adapter for apcore Module Registry.

2K 0 0
hybroai
a2a-adapter

Open Source A2A Protocol Adapter SDK for Different Agent Frameworks and Harnesses

2K 99 13
Aidress-ai
aidress-mcp

The coordination layer for autonomous AI agents

2K 9 1
Idun-Group
idun-agent-schema

🟪 Open-source runtime that ships any LangGraph or Google ADK agent as a production-ready FastAPI service. Bundled , AG-UI copilotkit API, chat UI, 15+ guardrails, MCP, OpenTelemetry, OIDC. One pip install. Self-hosted, no vendor lock-in.

2K 203 13
google
sam-mesh

Agent Mesh

2K 963 149
BrightbeamAI
chap-analytics

CHAP, the Collaborative Human Agent Protocol, is a MCP/A2A-compatible runtime for auditable human-agent work: approvals, overrides, handoffs, escalation and verifiable evidence logs.

2K 107 14
aspix2k
a2a-proof

Black-box contract tests for A2A agents

1K 0 0
Idun-Group
idun-agent-engine

🟪 Open-source runtime that ships any LangGraph or Google ADK agent as a production-ready FastAPI service. Bundled , AG-UI copilotkit API, chat UI, 15+ guardrails, MCP, OpenTelemetry, OIDC. One pip install. Self-hosted, no vendor lock-in.

1K 203 13
solvent-labs-org
orcha-sdk

multi model capable single harness orchestrator. Apache 2.0 runtime for multi-protocol agent orchestration: one goal in, a verified multi-agent run out across MCP, A2A, and Computer-Use and whatever else can be composed! https://gitmcp.io/solvent-labs-org/metaorcha

988 5 4
BrightbeamAI
chap-google-adk

CHAP, the Collaborative Human Agent Protocol, is a MCP/A2A-compatible runtime for auditable human-agent work: approvals, overrides, handoffs, escalation and verifiable evidence logs.

976 107 14
BrightbeamAI
chap-pydantic-ai

CHAP, the Collaborative Human Agent Protocol, is a MCP/A2A-compatible runtime for auditable human-agent work: approvals, overrides, handoffs, escalation and verifiable evidence logs.

965 107 14