Protocol
Model Context Protocol (MCP)
The USB-C port for connecting agents to tools and data.
An open protocol for connecting AI agents to external tools and data sources through a standard interface, so a capability built once can be reused across any MCP-compatible agent instead of re-integrated per framework.
Review
84/100
The connective tissue of the agent stack; not a product, but too important to skip.
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Discovery
Noindex
Readable here, but withheld from sitemap until coverage deepens.
Model Context Protocol (MCP) is an open standard, introduced by Anthropic, for wiring agents to the outside world: tools, files, APIs, and data sources exposed through one common interface. Instead of every framework inventing its own integration shape, an MCP server publishes a capability once and any MCP-compatible agent can use it.
Its significance is ecosystem-level. As agent SDKs and harnesses converged, MCP became a shared connective tissue, which is why it increasingly shows up as the way SDKs expose external capabilities. For operators it is also a trust-boundary question: an MCP server is another component your agent reaches, so the same provenance and least-privilege discipline that applies to skills applies here.