Nango
An integration platform handling the connection to hundreds of third-party APIs: the authorisation dance, token storage, token refresh, then data synchronisation. Mind the licence: this is not open source in the usual sense but source-available (Elastic License 2.0), and the free self-hosted version is limited to authorisation and call relaying. Synchronisation, functions and webhooks require the paid offering.
Strengths
- Avoids writing and maintaining authorisation logic for each provider yourself
- Token refresh and storage handled, removing an entire class of sneaky bugs
- Very broad connector catalogue, genuinely useful during discovery
Limitations
- Source-available and not open source: offering it as a hosted service to third parties is forbidden
- Data synchronisation, the main reason to adopt it, is not in the free version
- The exact scope of the free tier is confusing, to the point of being an open topic on the project side
Best for
- Wiring authorisation for several third-party APIs without hand-writing six integrations