Tool-Use Protocols

Tool-use protocols are open specifications — most prominently the Model Context Protocol (MCP) — that standardize how an LLM discovers, authenticates to, and invokes external tools, data sources, and other agents.

Why It Matters

A protocol layer turns "agent integrations" from N×M custom work into N+M plug-ins, the same shift that made USB and HTTP create their respective ecosystems.

Timeline

1. 2024-11

   Anthropic open-sources Model Context Protocol.

2. 2025-03

   OpenAI, Google, and GitHub adopt MCP; ecosystem unifies.

3. 2025-Q3

   10,000+ public MCP servers cataloged.

• 12 monthshigh confidence

  MCP becomes the default tool-discovery layer for >80% of agent frameworks.

Related Trends

• Agentic Workflows

  Rising

  LLMs that plan, call tools, and complete multi-step tasks autonomously.

• Computer Use

  Emerging

  Models that drive a real screen, mouse, and keyboard like a human.

• Enterprise AI Adoption

  Mainstream

  AI moves from pilots into core P&L line items.