https://mcpblog.org/ Independent, source-led research and practical guides to the Model Context Protocol, tracked against the current specification. en Tue, 25 Aug 2026 16:01:07 GMT https://mcpblog.org/how-mcp-works/ https://mcpblog.org/how-mcp-works/ A version-aware explanation of MCP architecture, primitives, message patterns, transports, and trust boundaries under the 2026-07-28 specification. Tue, 25 Aug 2026 00:00:00 GMT Architecture https://mcpblog.org/mcp-2026-07-28/ https://mcpblog.org/mcp-2026-07-28/ A practical guide to MCP's stateless 2026 specification, including per-request metadata, version discovery, multi-round trips, subscriptions, extensions, and legacy compatibility. Tue, 25 Aug 2026 00:00:00 GMT Specification https://mcpblog.org/mcp-client-vs-server-vs-host/ https://mcpblog.org/mcp-client-vs-server-vs-host/ Learn the difference between an MCP host, client and server, where the LLM runs, who controls tools and permissions, and how the current stateless architecture works. Tue, 25 Aug 2026 00:00:00 GMT Architecture https://mcpblog.org/mcp-history/ https://mcpblog.org/mcp-history/ A primary-source timeline of MCP, from its pre-launch repository and November 2024 announcement through adoption, open governance, and the stateless 2026 core. Tue, 25 Aug 2026 00:00:00 GMT History https://mcpblog.org/mcp-security/ https://mcpblog.org/mcp-security/ A technical guide to MCP security covering OAuth, prompt injection, tool poisoning, malicious servers, CVEs, supply-chain risks, and secure local and remote deployment. Tue, 25 Aug 2026 00:00:00 GMT Security https://mcpblog.org/mcp-stateful-to-stateless/ https://mcpblog.org/mcp-stateful-to-stateless/ A practical migration guide from MCP's initialize-and-session era to the stateless 2026-07-28 protocol, with compatibility and state-design patterns. Tue, 25 Aug 2026 00:00:00 GMT Specification https://mcpblog.org/mcp-transports/ https://mcpblog.org/mcp-transports/ Compare MCP stdio and current Streamable HTTP, and distinguish the 2024 HTTP+SSE and 2025 session-based wire models. Tue, 25 Aug 2026 00:00:00 GMT Specification https://mcpblog.org/mcp-vs-a2a/ https://mcpblog.org/mcp-vs-a2a/ MCP connects AI applications to tools and context; A2A connects independent agents. Compare their roles, objects, and how they work together. Tue, 25 Aug 2026 00:00:00 GMT Comparisons https://mcpblog.org/mcp-vs-api/ https://mcpblog.org/mcp-vs-api/ MCP does not replace REST, GraphQL, RPC, or vendor SDKs. Learn what it standardizes at the AI boundary and where direct APIs still win. Tue, 25 Aug 2026 00:00:00 GMT Comparisons https://mcpblog.org/mcp-vs-function-calling/ https://mcpblog.org/mcp-vs-function-calling/ Compare MCP with native function calling and tool use. Learn how they work together, where APIs fit, their security and latency trade-offs, and when to use each. Tue, 25 Aug 2026 00:00:00 GMT Comparisons https://mcpblog.org/what-is-an-mcp-server/ https://mcpblog.org/what-is-an-mcp-server/ Learn what an MCP server is, how hosts, clients, tools, resources and transports work, and how local and remote MCP differ in the current protocol. Tue, 25 Aug 2026 00:00:00 GMT Foundations https://mcpblog.org/what-is-mcp/ https://mcpblog.org/what-is-mcp/ A version-aware explanation of MCP: the problem it solves, its architecture and capabilities, and how the stateless 2026 core differs from legacy MCP. Tue, 25 Aug 2026 00:00:00 GMT Foundations