Nango is an open-source platform that connects applications to external APIs by managing authentication, data synchronization, and custom function execution. It provides a managed runtime for TypeScript integration functions, handling OAuth flows, credential storage, and token refresh for hundreds of external APIs while keeping secrets isolated from application code.
The platform distinguishes itself by exposing integration functions as discoverable tools for AI agents through an MCP server or API, with per-user credential isolation that keeps provider secrets out of the agent loop. It offers a unified data model that normalizes data from multiple external APIs into a single product-defined schema, enabling consistent read and write operations across providers. Nango also provides a customizable embedded authorization UI, scheduled incremental sync engines with checkpoint resumption, and webhook routing that maps incoming events to the correct user connection and triggers functions.
The platform supports developing, validating, and deploying TypeScript integration functions with built-in retries, rate limit handling, and observability. It enables per-customer integration configuration through connection metadata, allowing runtime customization without code changes. Nango can be deployed on managed infrastructure or self-hosted using Helm charts, with independently scalable services for credential management, function execution, sync processing, and webhook routing.
