Reach other agents. Simplify the protocol complexity.
Connect your commerce to personal agents and emerging AI experiences. CartmelAI brings the protocol layers together, including PAP and ARD, so your team can focus on the customer journey.
PAP · ARD · MCP · MCP Apps · WebMCP · A2A · ACP · UCP
From conversation to commerce
An agent discovers your service → identifies the available capabilities → connects with the right permissions → uses your catalogue and supported commerce actions.
One customer journey. Many protocol layers.
An agent may need to discover your service, understand a product, open an interface, identify itself and complete an authorized action. Each stage can use a different protocol. The real work is making the layers cooperate: permissions, session state, data freshness and errors all need to stay consistent.
PAP and ARD: supported by CartmelAI
We support PAP (Personal Agent Protocol, also called Poppy) for personal-agent interactions, including Muse journeys, and ARD (Agentic Resource Discovery) for making agentic capabilities discoverable. We connect these layers with your catalogue, tools and merchant journeys so an agent can find the service and use the capabilities you expose.
The protocol landscape
The MCP Apps Builders atlas maps 20 protocols across six families, with MCP as the common tools layer. Different protocols solve different problems, and two distinct standards even share the ACP abbreviation.
Interfaces
MCP Apps, A2UI (Agent to UI), AG-UI (Agent–User Interaction) and NLWeb (Natural Language Web).
Agents and tools
MCP (Model Context Protocol), WebMCP, A2A (Agent2Agent), AHP (Agent Host Protocol), ACP (Agent Client Protocol) and SLIM (Secure Low-Latency Interactive Messaging).
Commerce
ACP (Agentic Commerce Protocol) and UCP (Universal Commerce Protocol).
Discovery
ARD (Agentic Resource Discovery) and ANP (Agent Network Protocol).
Identity and trust
PAP (Personal Agent Protocol / Poppy), Web Bot Auth and TAP (Trusted Agent Protocol).
Payments
MPP (Machine Payments Protocol), x402 and AP2 (Agent Payments Protocol).
Let CartmelAI manage the connections
Keep one catalogue and define the outcomes you want to enable. We select and connect the relevant protocol layers, map them to your existing systems, test the customer journey and adapt the integration as agents and standards evolve. Your team keeps control over the products, permissions and actions made available.
Test your agent readiness with Ora.ai
Test your agent readiness with Ora.ai. We have a track record of helping merchants make their agent-readiness scores skyrocket. CartmelAI turns your assessment into a practical improvement plan, from clearer product information to discoverable capabilities and more reliable shopping journeys.
Plan your launch with CartmelAI
Choose the protocol combination that fits your agents, merchant systems and customer journey. Capabilities are configured and validated for each deployment.