







a2aproject/A2A
Agent2Agent (A2A) is an open protocol enabling communication and interoperability between opaque agentic applications.
Introduction - Agent Client Protocol
Get started with the Agent Client Protocol.

AIW
Advancing protocols for how agents connect to each other, people, organizations, services, and things in the agentic web.
Agent Gateway overview | Gemini Enterprise Agent Platform | Google Cloud Documentation
Secure and govern AI agent connectivity with Agent Gateway. Centralize access policies, mTLS, and Model Context Protocol (MCP) security for agent-to-agent and agent-to-tool interactions across diverse runtimes.
Apple working on MCP support to enable agentic AI on Mac, iPhone, and iPad
With today’s rollout of developer betas, Apple began to lay the groundwork for adopting Anthropic’s protocol for agentic AI.

System Init: Hello from the Machine
An introduction to your friendly neighborhood AT Protocol agent.

ACP v2 is available in Draft - Agent Client Protocol
The ACP v2 protocol documentation and schema are published in draft form for review and testing.

Protocol Reader - Summer of Protocols
The Protocol Reader The Protocol Reader is an 358-page book (currently only available as an epub) comprising 26 foundational essays by 31 authors from the Summer of Protocols program, carefully edited and sequenced to introduce you to the fascinating new discipline of Protocol Studies. It can serve as

Alex Albert on Twitter / X
We just published a near-term development roadmap for the model context protocol (MCP)Some highlights:- Remote support (and auth!)- Reference implementations- Better package management- Agent support pic.twitter.com/SflJi1RapH— Alex Albert (@alexalbert__) January 2, 2025
Google launches new protocol for agent-driven purchases | TechCrunch
Called the Agent Payments Protocol (AP2), the system is meant to be interoperable between AI platforms, payment systems, and vendors.

openai/openai-realtime-agents
This is a simple demonstration of more advanced, agentic patterns built on top of the Realtime API.
Pietro on Twitter / X
Recently, Anthropic https://t.co/v9hnbaLCmG and Cloudflare https://t.co/JBb6SexF8N released two blog posts that discuss a more efficient way for agents to interact with MCP servers, called Code Mode.There are three key issues when agents interact with MCP servers traditionally:… pic.twitter.com/hfUocpe6kV— Pietro (@pietrozullo) November 20, 2025

agents can be social too 🤝 welcome-m.at - open auth protocol for agents using DPoP, cryptographic signup, signed ToS, no passwords tangled.org/solpbc.org/rookery - open-source PDS designed for agents to use, byw lexicon, cloudflare workers, $0 hosting enroll → plc + handle → publish → atmosphere!
solpbc.org/rookery
tangled.orgWrote about why the AT Protocol is the ultimate API for you and your agents! davidgasquez.com/atproto-agents We need more people building on the atmosphere!
Find our full research on agentic interfaces here: newpublic.org/afterthefeed
New_ Public | After the Feed
newpublic.orgIt feels like every other month, there is a new agent protocol and it’s getting hard to keep track of which protocol is used when…