---
title: "ACP | ACP agent commerce protocol discovery | Agent-Ready Check"
description: "ACP is a discovery document for agent-driven commerce APIs: where the base URL is and what it can do. Pass criteria: /.well-known/acp.json declares protocol.name, api_base_url, transports and capabilities.services."
locale: en
canonical: https://agent-ready.t0ols.com/checks/acp/
---

# ACP

> Category: Commerce

ACP is a discovery document for agent-driven commerce APIs: where the base URL is and what it can do.

## Why it matters

Discovery first, transaction second. Agents need to find the API before they can call it.

## Pass criteria

/.well-known/acp.json declares protocol.name, api_base_url, transports and capabilities.services.

## How to implement it

Goal: Publish ACP discovery metadata so agents can discover your commerce API

/.well-known/acp.json declares protocol.name, api_base_url, transports and capabilities.services.

The step-by-step implementation prompt is part of the paid tier. The free layer gives you the diagnosis, the evidence and the specification links.

Specifications: https://agenticcommerce.dev
Implementation notes: https://agent-ready.t0ols.com/.well-known/agent-skills/acp/SKILL.md