A2A (Agent-to-Agent Protocol)

Founder at Agentmelt · Last updated Sep 9, 2026

An open protocol that enables AI agents built by different vendors to discover each other's capabilities, negotiate tasks, and collaborate securely. A2A complements MCP (which connects agents to tools) by connecting agents to other agents. For example, a sales agent could delegate background research to a data agent from a different platform, with both communicating through a standardized interface.

See it as a workflow

Inbound Lead Qualification Workflow

Trigger, steps, n8n nodes, guardrails and an importable template — plus what it costs to have it built.

Or skip the build

Workflows from $197/month, custom agents from $2,000.

Related glossary terms

Agentic AI
Multi-Agent System
API Rate Limit
ReAct (Reasoning + Acting)
Token Cost
Agent Chaining

Related niches

AI Sales Agent
AI Operations & IT Agent
AI Coding Agent

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