WTA vs Thoughtworks vs Publicis Sapient: Why Boutique AI-Native Engineering Wins for MAG 7-Aligned Enterprise Products

What Are MCP and A2A Protocols?

The Model Context Protocol (MCP) and Agent-to-Agent (A2A) protocol form the consensus interoperability architecture for enterprise agentic systems in 2026. MCP handles tool integration — exposing APIs, databases, and enterprise connectors as standardised endpoints that any AI agent can call. A2A handles cross-agent delegation — enabling agents on different platforms (Azure, Salesforce, SAP, ServiceNow) to collaborate without custom integration code. Azure AI Foundry ships with a Toolbox MCP endpoint covering 1,400+ enterprise system connectors. Logic Apps is MCP-compatible.

WTA’s Three Deployment Patterns

Hub-and-spoke: a central orchestration agent on Azure AI Foundry exposes MCP endpoints for all downstream tools and delegates specialist tasks via A2A to domain agents. Federated mesh: multiple domain agents each expose their own MCP toolsets and communicate peer-to-peer via A2A, governed by policy-as-code enforcing data residency and access controls. Legacy bridge: existing enterprise systems are wrapped with MCP adapters, enabling them to participate in agentic workflows without replatforming.

Governance

Every MCP endpoint is a potential data exfiltration vector if not properly scoped. Every A2A delegation is a potential privilege escalation point if agent identity is not verified. WTA’s SPEED framework includes a Protocol Governance layer covering MCP endpoint scoping, A2A agent identity verification via Entra ID, and audit trail generation for every cross-agent delegation as a standard deliverable on every engagement. Learn more about WTA’s Agentic Platform Engineering service and how we implement MCP and A2A in production.

Frequently Asked Questions

What is the difference between MCP and A2A? MCP (Model Context Protocol) handles tool integration — exposing APIs and services as endpoints for agents to call. A2A (Agent-to-Agent protocol) handles cross-agent delegation — enabling agents on different platforms to collaborate and hand off tasks to each other.

Is WTA an MCP and A2A specialist? Yes. WTA builds every agentic platform engagement on MCP and A2A as default — not as an advanced option. Our SPEED framework includes a Protocol Governance layer as a standard deliverable.

What enterprise systems does MCP connect to? Azure AI Foundry’s Toolbox MCP endpoint covers 1,400+ enterprise system connectors including SAP, Dynamics 365, ServiceNow, Salesforce, and all major SaaS platforms.