Overview:
Nango is an open-source platform for building product integrations into your application. It enables developers to connect their product or AI agents with over 700 external APIs by writing integration logic as TypeScript functions, which can be generated by an AI builder. Nango handles authentication, execution, scaling, and observability, serving as a production runtime for custom integrations. It is used in production by companies like Replit and Ramp and works with any backend language, AI coding tool, and agent SDK. It is designed for teams that need to build, deploy, and maintain customer-facing integrations.
Core Features:
Managed Auth: Handles OAuth, API key, and token refresh for 700+ APIs with a white-label auth flow, credential storage, and multi-tenant connection management.
Proxy: Makes authenticated API requests on behalf of users, automatically resolving providers, injecting credentials, and handling retries and rate limits.
Functions: Allows developers to write integration logic as TypeScript functions, deploy them to Nango’s runtime, and execute with built-in API access, retries, storage, and observability.
AI Builder: Generates TypeScript integration functions from a natural language description, producing human-readable, type-safe code that can be reviewed and version-controlled.
Data Syncing: Supports one-way and two-way data synchronization for use cases like RAG pipelines and indexing.
Webhook Processing: Receives and processes webhooks from external APIs with support for per-customer configuration.
Use Cases:
Embedding product integrations: Developers building SaaS products that need to connect to external APIs like Salesforce, Slack, or GitHub on behalf of their users.
AI tool calling & MCP: Enabling AI agents to act on external APIs, supporting agent SDKs like MCP and LangChain for tool-use workflows.
Custom data pipelines: Syncing data between a main application and third-party services for indexing, triggers, or data unification.
Multi-tenant connectivity: Managing per-customer API credentials and operational configurations, allowing each customer to have customized integration behavior.
Why It Matters:
Nango provides a structured, code-centric approach to building integrations, contrasting with black-box integration platforms by generating readable, version-controllable TypeScript code. It is fully open-source and self-hostable, with options for Nango Cloud or self-hosted deployment on your own infrastructure. The platform handles complex authentication, scaling, and observability out of the box, reducing the need for teams to build these systems from scratch. Its compatibility with AI coding tools and agent SDKs makes it a practical choice for developers integrating both traditional APIs and modern AI-driven workflows.
