I don't think there's any hidden problems; it's just worth doing a thorough review of each API you're going to rely on and check the docs to make sure you know what you're in for and that whatever library you choose to use supports the APIs you need and that you're happy to pay for what you need.

Good to know. Was worried from your comments that the API had temporary undocumented issues right as we are about to connect in their software. On the plus side, once we get this done, the devs won’t have to support 90%+ of what we need for sales & marketing. Frees significant time for them.

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