While there are several integration APIs / Unified APIs like Merge.dev or other tools they are extremely expensive. I believe a lot SaaS apps or product becomes more useful if they are not siloed with one another. The issue for developers is to integrate their product with other systems natively instead of using a third party solution.
Embed aims to be an opensource cost effective unified API server. You can deploy the docker image to your favourite hosting platform.
We follow openAPI and open-core model. You configure the system with a simple [config.yml] file.
This project is maintained by Harish Deivanayagam