# What is MCP? Complete Guide to Model Context Protocol for SaaS in 2026 The Model Context Protocol (MCP) is an open standard for connecting AI agents to tools and data sources. Learn how MCP works, why it matters for SaaS evaluation, and how to assess a tool's MCP readiness. **Difficulty:** N/A **Category:** Guides **Tags:** **Last updated:** 2026-07-19 --- Read the full guide: https://stack-insider.com/guides/mcp-guide/ --- *This content is from Stack Insider (https://stack-insider.com) — tool reviews and AI workflow guides.*