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World Congress 2025 • Aug 20, 2025 • Session details

From A2A to MCP: How AI’s “Brains” are Connecting to “Arms and Legs”

Brad Axen

How do AI agents seamlessly query databases and push code changes? Learn how Anthropic's MCP and Google's A2A protocols solve context overflow while securely connecting models to enterprise environments.

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#1 about 5 min

Understanding the core AI agent execution loop

Translating text responses into structured JSON tool calls allows independent agents to execute complex programmatic functions and autonomously recover from execution failures.

#2 about 2 min

Introducing Model Context Protocol for external tool execution

Connecting core agents to external servers through standard protocols allows models to securely access remote tools and disparate machines.

#3 about 3 min

Simplifying development with standard tool calling implementations

Standardizing tool executions through specific protocol SDKs removes isolated integrations and instantly connects discrete capabilities to the broader agent ecosystem.

#4 about 4 min

Demonstrating data extraction and dashboard creation with Goose

Combining data extraction servers and local file editors allows autonomous software to compile independent database queries into actionable visual dashboards.

#5 about 2 min

Connecting full development workflows through multiple external tools

Bridging issue trackers, local environments, and source control through uniform protocol connections allows single agents to execute full-cycle software deployments.

#6 about 2 min

Applying agent recursion to solve larger technological problems

Spawning dedicated sub-agents as recursive tool calls allows overarching parent agents to delegate complex research tasks without halting execution.

#7 about 3 min

Balancing intelligent specialization with efficient context management

Restricting irrelevant token streams from parent models preserves context window efficiency and drives multi-agent architectures more effectively than skill specialization.

#8 about 4 min

Leveraging Google's A2A protocol for cross-system boundaries

Navigating organizational infrastructure boundaries requires standardized message layouts and execution hooks provided by formal agent-to-agent communication protocols.

#9 about 2 min

Connecting frontends to background agents using standard protocols

Translating native frontend requests through underlying agent interactions handles long-running actions and message subscriptions efficiently and with little setup overhead.

#10 about 2 min

Shaping the future ecosystem with unified communication protocols

Consolidating open-source models around standard tool communication prevents duplicated integration efforts and enables comprehensive multi-agent infrastructure scaling.

Matching moments

1:44 min

Overview of the Model Context Protocol and its rapid adoption

Jan Curn Jan Curn · WWC Europe 2026

2:58 min

Origin and purpose of the Model Context Protocol

David Soria Parra David Soria Parra +3 · WWC Europe 2026

2:32 min

Standardizing agent communication with MCP and A2A

Chris Heilmann +2 · LIVE

4:13 min

Developing agentic AI applications using Model Context Protocol

Cedric Clyburn Cedric Clyburn +1 · WWC 2025

2:36 min

Exploring the core architecture and components of AI agents

Jörg Neumann Jörg Neumann · WWC 2025

5:54 min

Standardizing agent interactions with the Web MCP proposal

Chris Heilmann +2 · LIVE

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