How to build AI agent integrations using the Nango Management MCP

Nango’s Management MCP is a hosted server that lets engineers and coding agents configure, test, deploy, and monitor integrations through tools authenticated by environment API keys, while its separate tool-calling MCP server enables production agents to execute approved actions for individual customer connections. Using Slack as an example, the guide demonstrates creating an integration with Nango’s shared OAuth app, generating a time-limited customer authorization link tagged to an end user, testing the authorized connection through Nango’s token-injecting proxy, deploying and inspecting a prebuilt message sync, and enabling a send-message action for runtime use. It notes that the Slack messages-received template initially processes only the first available channel, so multi-channel use may require custom function development with pagination. The workflow is intended to apply broadly across Nango’s catalog of more than 900 APIs, although providers without shared credentials require a developer’s own OAuth app. The guide emphasizes separating development-facing Management MCP access from runtime agent access, using distinct narrowly scoped keys, avoiding credential-reading permissions where unnecessary, treating connection IDs as sensitive, and using development environments for configuration and testing before production deployment.

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