Glossary · term95 of 202
initialize handshake
The one-time exchange at the start of an MCP connection where a client and server negotiated protocol version and capabilities before any tool calls happened.
also written as handshake · initialize request
Related terms
MCPModel Context Protocol, an open standard that lets an AI tool connect to external data sources and services through a shared connector format instead of a custom integration per service.view termMcp-Session-Id headerAn HTTP header MCP servers once used to track which open session a request belonged to, removed when the protocol dropped stateful sessions.view termprotocol version fieldA value identifying which revision of the MCP spec a client speaks, negotiated once at startup under the old handshake and now restated on every request.view term
At a glance
- cited by
- 4 posts
- categories
- 4
- first used
- apr 2026
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Building an MCP Server From Scratch (The Parts Nobody Explains)Build an MCP server in TypeScript from zero. Covers the handshake, Streamable HTTP transport, OAuth 2.1 auth, error codes the SDK swallows, and production deployment patterns.