Insights & updates
The blog.
Technical deep-dives, product updates, and perspectives on MCP, AI tooling, and shipping agent experiences that hold up in production.
How to Add MCP Auth with Emcy Gateway Without Using Host
You can keep your own MCP runtime and still use Emcy Gateway for public MCP auth, discovery, grants, and policy.
One Gateway, Two MCP Servers, Different Scopes
How to share one Emcy Gateway across multiple MCP servers while keeping each server's requested scopes minimal.
How We Tuned a Todo API for Better MCP Tool Selection
A concrete walkthrough of how we changed the Todo sample API, Emcy's hosted tool parser, and openapi-to-mcp so MCP agents could find the right completion tool more reliably.
Why Emcy Doesn't Do Token Passthrough — and Why That Matters
A deep dive into Emcy's MCP OAuth architecture: two-token isolation, spec-compliant discovery, and why the MCP protocol explicitly forbids forwarding client tokens to upstream APIs.
The Best Tool-Selection Improvement Happens Before the LLM
Emcy improves tool selection before the model ever reasons: semantic preselection narrows the agent to a small, relevant tool set instead of sending the full catalog into the prompt. That makes agents faster, cheaper, more reliable, and easier to tune.
How to Make Your OpenAPI Spec MCP-Friendly
Your OpenAPI spec is the source of truth for MCP tool generation. Good names, clear descriptions, and structured schemas directly determine how well AI agents discover and use your tools. Here's how to get it right.
Token-Efficient Tool Selection: How We Scaled From 10 Tools to 300
The standard approach to MCP tool selection burns 20,000 tokens per request and hits rate limits at scale. We replaced it with Azure SQL native vector search—zero LLM tokens for selection, 60ms latency, 7.6x fewer tokens per request.
The Complete Guide to MCP OAuth for ChatGPT Apps
Authentication for AI apps is notoriously complex. Learn how MCP OAuth works, why it's different from traditional OAuth, and how Emcy simplifies the entire process.
From OpenAPI to ChatGPT App in 5 Minutes
Turn any API with an OpenAPI spec into a ChatGPT-compatible MCP server. No OAuth expertise required. Here's exactly how to do it.
The Definitive Guide to Building MCP Servers for Claude & Cursor
Learn how to build production-ready MCP servers that integrate with Claude Desktop and Cursor. We cover authentication, error handling, and best practices.