A model needs a tool to check project status. A user asks, “What’s blocking the demo project?” The model understands the question, but has no way to read the project’s state. The experience we want is straightforward: the user adds their project service, authorizes access once, then returns to the same conversation and gets an answer grounded in data.
What this article verifies
Sources were checked as of October 3, 2026, using Nango source and client version 0.71.12. The local examples use Node.js 22+ and have been tested for tool discovery, input validation, and request/response handling, including a local replacement for the proxy adapter. Project data is synthetic; the experiment does not call a model or execute real OAuth and proxy requests through Nango Cloud. The public-server sections provide integration steps to test in your own account. Rolling documentation, pinned source, and cloud deployments may differ; a dependency version does not prove protocol support, and customer stories establish only their stated use cases. The available evidence also does not establish that external MCP tools are automatically imported into Nango’s Action catalog.
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