MCP Governance and the SEP Process

Conformance Suite and Standards Track

Building or Configuring an MCP Client

Building an MCP Server

MCP SDKs and Tier Support

Authorization Hardening in MCP

Client Registration: CIMD over DCR

MCP Authorization and OAuth Basics

Tasks Extension: Poll-Based Long Operations

MCP Apps: Sandboxed Interactive UIs

The MCP Extensions Framework

Deprecated MCP Features You Should Skip

MCP Feature Lifecycle and Deprecation

Standard JSON-RPC Error Codes

JSON-RPC as the Base Protocol

MCP Transports: stdio and HTTP

Multi Round-Trip Requests in MCP

Scaling MCP Without Sticky Sessions

Carrying Context via _meta

The Stateless Protocol Core

MCP Spec Versioning with Dates

MCP Primitives: Tools, Resources, Prompts

MCP Governance and Origins

Tier 1 SDKs and Language Support

Conformance Suite Gates Standards Track

application_type at Client Registration

Python SDK v2: FastMCP Renamed

Extensions Framework

Standard JSON-RPC Error Codes

Formal Feature Lifecycle

Roots, Sampling, Logging Deprecated

Issuer Validation and Credential Binding

Tasks Extension

Legacy HTTP+SSE Transport Deprecated

MCP Authorization on OAuth

MCP Apps Extension

JSON-RPC Batching Removed

Enterprise-Managed Authorization

CIMD Replaces DCR

MCP Architecture: Hosts, Clients, Servers

What MCP Is

Date-String Spec Versioning

Scaling with Load Balancers

MCP Core Primitives

Stateless Protocol Core

Current Spec Version

The _meta Parameter

MCP Transports

Multi Round-Trip Requests

Routing and Cacheable Lists

JSON-RPC Base Protocol

MCP Architecture

What MCP Is and Why