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Architecture
Inside MCP: What an MCP Server Is Made Of
2026-08-0521
Take away the vocabulary and an MCP server is a list of tools, a description of each written to be read by a machine, and two ways of delivering a message. Plus authorization, and three ways of failing — the third of which no specification can catch, and it cost me twelve published articles.
MCP
API
Architecture
Security
Authentication
Spec
AI
MCP vs REST API: Fifty Years of the Same Question
2026-08-0519
In July 2026 MCP removed sessions and became stateless — the one constraint REST has been built on since 2000. MCP did not replace REST. This is how we got here.
MCP
REST
API
AI
History
Comparison
Architecture