MyLeadTech helps HVAC technicians identify equipment by model or nameplate reference, search manufacturer service manuals, troubleshoot fault codes, and retrieve page-cited answers from official technical documents across brands including Carrier, Trane, and Lennox.
Codex is OpenAI's coding agent for the terminal. It reads MCP servers from its config and signs in to remote ones with OAuth.
This guide connects MyLeadTech MCP to Codex through MewCP, so Codex can use MyLeadTech MCP's 5 tools, like resolve_equipment, search_hvac_documents and get_hvac_source, without your MyLeadTech MCP credentials ever reaching the app.
Your MyLeadTech MCP API key is stored encrypted and injected only at call time. Your agent never holds it, so it can never leak it, log it or paste it into a prompt.
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Other clients
MyLeadTech MCP works the same way in every client below. Pick yours for its own guide.
Free to start.
Scope access to the exact MyLeadTech MCP tools and accounts you allow, work and personal side by side. Anything outside that scope is refused at call time, even when the model asks for it.
Each call is logged: what ran, on which account, and whether it worked. Failures come back structured, so the agent knows whether to retry instead of guessing.
Every app sits behind one secure MCP URL, and there is no server for you to deploy or keep running. Add an integration in the dashboard and it is live on the next call, with no config to change and no new credentials to wire up. Tools load only when a task needs them, so your agent stays fast and focused however many apps you connect.
Run this and approve access in the browser window.
Start a new chat and ask: "List the tools you can use from MewCP." You should see your connected apps.
Resolve an HVAC model or nameplate reference to brand, family and documentation coverage. Not billed.
Search OEM HVAC manuals by question, brand, model reference or fault code. Returns bounded passages with citations (document, page).
Return the passage and bounded context of a source already cited by search or answer.
Answer an HVAC service question with citations to the OEM manual page it came from. Returns empty rather than guessing when no source supports an answer.
Return a source manual page as a PNG image, plus a signed PDF link when format is pdf.
