---
id: "agent2agent-protocol"
title: "Agent2Agent Protocol"
creator: null
creator_url: null
creator_x: null
url: "https://a2a-protocol.org/latest/"
level: "intermediate"
level_max: "intermediate"
category: "agents"
subcategory: "agent-design-patterns"
region: "unknown"
license: "unknown"
license_scope: "linked-resource"
access: "free"
models: []
source_date: null
date_added: "2026-10-18"
resource_kind: "learning_resource"
verification_basis: "supplier-inventory-v2.3"
access_evidence: "Supplier-approved free inventory; not independently verified by this site."
domain_top: "Agents & AI engineering"
domain_sub: "agent skills & protocols"
last_verified: "2026-10-18"
---

[Agents and harnesses](/agents/index.md)

# Agent2Agent Protocol

Creator not supplied; see original source.

[Read the original →](https://a2a-protocol.org/latest/)

Agent2Agent (A2A) protocol documentation: open specification and SDKs for communication between AI agents.

Level: [Intermediate](/levels/index.md)
Models: 
Category: [Agents and harnesses](/agents/index.md)
Tags: [agent-skills-protocols](/tags/agent-skills-protocols/index.md), [agents-ai-engineering](/tags/agents-ai-engineering/index.md)
Source date: date not stated
Added: 2026-10-18
Last verified: 2026-10-18
Status: ok
Prerequisites: source
Subcategory: [agent design patterns](/agents/agent-design-patterns/index.md)
Region: unknown
Original language: en
Access: free
Resource reuse: unknown: Not supplied; no reuse grant asserted. [Facet definitions](/about/index.md#facets)
Verification basis: Supplier-reported live check; no independent HTTP verification by this site.
Access evidence: Supplier-approved free inventory; not independently verified by this site.
Source domain: Agents & AI engineering
Source subdomain: agent skills & protocols
Supplier region label: International

Summary in our own words. Rights remain with the original creator. [Credit and correction policy](/about/index.md#credit-policy).

[Plain-text Markdown copy](/agents/agent-design-patterns/agent2agent-protocol/index.md)