The Model Context Protocol, explained.
The Model Context Protocol (MCP) is how ChatGPT, Claude, and Perplexity consume live data from connected tools. CorpusIQ runs a production MCP server that exposes 22+ business tools to all three LLMs through a single OAuth connection. This hub collects four articles that explain what MCP is, how it differs from a traditional API, how to build an MCP server, and how to secure one for production business data.
What is the Model Context Protocol?
A plain-English introduction to MCP: what it does, why it exists, how it differs from a plugin, and why it is the connective layer for ChatGPT, Claude, and Perplexity.
MCP vs API: What Is Actually Different
APIs expose endpoints. MCP servers expose tools. The distinction changes how you design integrations, who can consume them, and what the LLM does with them.
Building an MCP Server: A Practical Guide
How to build a Model Context Protocol server that ChatGPT, Claude, and Perplexity can consume. Tool definitions, authentication, transports, and the traps to avoid.
MCP Security: Protecting Your Data in the Context Window
Read-only OAuth scopes, prompt-injection defenses, data retention, and the audit trail every MCP server needs before it touches production business data.
See MCP in production
CorpusIQ is a live MCP server with 22+ connected business tools: QuickBooks, Shopify, HubSpot, Gmail, Google Drive, GA4, Google Ads, Meta Ads, Slack, PostgreSQL, SQL Server, and more. One OAuth, one subscription, three LLMs. Solo plan starts at $29.95 per month.