API Design
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Every Stateless MCP Server Rebuilds State Somewhere
A stateless MCP server never deletes its state, it just relocates it. The measured wire cost, the three places it lands, and how to pick one of them on purpose.

Perplexity Isn't Shutting Down. Its Citation Corpus Might Shrink
No, Perplexity is not down. The lawsuits threaten which sources it can read, so plan for a thinner citation set inside a healthy 200, and detect it in code.

WebMCP Has 20× the Interest and Zero Deployments
WebMCP adoption is zero across 111,076 scanned domains while search interest holds near 20 times its January level. Here is what to ship now, and what to watch.

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.