Build & Earn
What is MCP?
A standard way for models to list and call tools. It is not itself a payment protocol.
The Model Context Protocol, open-sourced by Anthropic on 25 November 2024, defines how a host (the model runtime) talks to servers that expose tools, resources and prompts.
MCP solved a proliferation of one-off integrations. It did not solve billing. tools/list and tools/call tell an agent what it can do, not what it owes.