Testing free GLM 5.2 in Devin Desktop to create an MCP server

Melvin Vivas · X post · 2026-06-23 · Open on X

Topics: AI Agents, Tool Use & MCP, AI Dev Tools & Productivity · Level: intermediate

Summary

A quick test of the free GLM 5.2 model in Devin Desktop: it built an MCP server in a couple of prompts. It also explained how to open the MCP Inspector UI to test the server.

Key points

• GLM 5.2 is free to use in Devin Desktop.
• It created a simple MCP server in a couple of prompts.
• It gave steps for launching the MCP Inspector UI to test the server.
• Good for simple tasks; harder tasks were still being tested.

Resources mentioned

• GLM 5.2 · tool · huggingface.co · free
  A GLM-family LLM (the transcript says 'GLM-5-2') that the demo ranked as a strong, affordable model for coding and design.
  Also in: Qwen3.8-Max on the Frontend Code Arena cost-performance frontier (Melvin Vivas on X · notes), Models That Work With the Hermes Agent for Personal Productivity (Melvin Vivas on X · notes), Open Model GLM 5.2 Helped Mitigate OpenAI-Caused Cyberattack (Melvin Vivas on X · notes), AI News Roundup: Claude Fable 5, Scientist AI, ZCode, NVIDIA RL (Melvin Vivas on X · notes) and 27 more
• Devin · tool · x.com · paid
  A desktop app from the makers of the Devin coding agent for planning, delegating, reviewing and shipping work across fleets of local and cloud coding agents.
  Also in: Using the Devin iOS App to Build iOS Apps (Quick Demo) (Melvin Vivas on X · notes), Use Your ChatGPT Plus/Pro Subscription to Run Devin (Melvin Vivas on X · notes), OpenAI DevDay recap: Dots, GPT-6.1 Sol, Codex Cloud, Agents API (Melvin Vivas on X · notes), Devin price cuts and top score on FrontierCode 1.1 Extended (Melvin Vivas on X · notes) and 44 more
• MCP Inspector · tool · github.com · free
  Official visual tool for testing and debugging MCP servers.

Try this

• Test your MCP server with the MCP Inspector UI.
• Build a simple MCP server with GLM 5.2 in Devin Desktop.