AP2 alternatives in 2026: 19 tools like AP2

Closest: Agent Communication Protocols

A2A

Agent-to-Agent protocol by Google for multi-agent interop

Curated

0 use thisCompare with AP2
ACP

Agent Communication Protocol by IBM/BeeAI

Curated

0 use thisCompare with AP2
Agentic Commerce Protocol

Open standard by Stripe and OpenAI for agent-driven checkout flows

Curated

0 use thisCompare with AP2
AGENTS.md

Open convention for giving coding agents build, test, and style instructions

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ANP

Agent Network Protocol for decentralized agent communication

Curated

0 use thisCompare with AP2
Trusted Agent Protocol

Visa specification letting merchants verify trusted AI shopping agents

Curated

0 use thisCompare with AP2

More in AI Protocols

MCP

Model Context Protocol by Anthropic for tool and data access

Curated

1 use thisCompare with AP2
Arcade

Runtime for authorizing, executing, and governing AI agent tool calls

Curated

0 use thisCompare with AP2
Composio

Managed toolset and integrations platform for AI agents via MCP

CuratedWeb

0 use thisCompare with AP2
Glama

Directory and gateway for MCP servers

Curated

0 use thisCompare with AP2
Merge Agent Handler

Merge platform connecting AI agents to third-party tools over MCP

Curated

0 use thisCompare with AP2
Nango

Integration platform connecting products and AI agents to external APIs

Curated

0 use thisCompare with AP2
Smithery

Registry for discovering and deploying MCP servers

Curated

0 use thisCompare with AP2
Nevermined

Payments infrastructure for AI agents to meter usage and settle charges

Curated

0 use thisCompare with AP2
Stripe Agentic Commerce Suite

Stripe suite for accepting agentic payments and selling via AI agents

Curated

0 use thisCompare with AP2
EM

Excel MCP Server

MCP server for reading and editing Excel files without Excel installed

Curated

0 use thisCompare with AP2
S

Skyfire

Identity and payment tooling for AI agents to log in and check out

Curated

0 use thisCompare with AP2
VI

Visa Intelligent Commerce

Visa program enabling AI agents to make card payments for consumers

Curated

0 use thisCompare with AP2
Novamira

Open-source WordPress plugin that exposes a site to AI agents over MCP

CommunityWeb

0 use thisCompare with AP2

Questions

What are the closest alternatives to AP2?

A2A, ACP and Agentic Commerce Protocol sit on the same sub-line as AP2 (Agent Communication Protocols) on AI Landscape, with 3 more.

How are these alternatives chosen?

They are the other products on the AI Protocols stop of the map: curated products first, the ones on AP2's sub-line before the rest, then by name until members have marked enough of them.