Anthropic

MCP steward; backs x402 for paid agent tool calls.

ProtocolsMCPx4024 services ▸

What Anthropic offers

Model Context Protocol (MCP)Free (open source)

Open standard connecting agents to tools and data; commerce specs like ACP ship MCP-server bindings

Claude Agent SDK

TypeScript/Python library exposing Claude's agent loop, tools, permissions, and MCP support

Agent Skills

Open format for packaging procedural know-how (e.g., commerce workflows) that agents load on demand

Claude Developer Platform

API access to Claude models with tool use and computer use for building transacting agents