A2A: when your customers' agents start talking to your business

The first wave of AI-driven business was a person asking an assistant a question. The second wave is quieter and stranger: software talking to software. An assistant planning a company offsite doesn't just answer its user — it goes out and asks venues about capacity, caterers about menus, studios about availability.

For that to work, your business needs something most businesses don't have yet: an address where other agents can find it, and a structured way to answer when they call.

That's what A2A is. The agent-to-agent protocol is an open standard for exactly this handshake. A business publishes an "agent card" — a small, machine-readable file at a well-known address that says: here's who I am, here's what you can ask me, here's how. Any A2A-speaking agent can discover that card, verify it, and start asking structured questions.

What CoreLoop does with it. Every published CoreLoop business gets a full A2A presence automatically: the agent card at its well-known address, generated from your profile, plus the endpoint that answers agent queries — services, hours, prices, the works. When another business's agent needs what you sell, yours is discoverable, current, and verifiable.

And the brakes. Openness without control is a liability, so every channel comes with rate limits, complete interaction logging (you can see exactly what agents asked), and a per-protocol kill switch. You can take your A2A presence offline with one toggle and bring it back the same way.

Agent-to-agent commerce is early — earlier than assistant-to-business. But the pattern of every platform shift is the same: the addresses get claimed before the traffic arrives. Yours takes about five minutes.