I dug a little further and it looks like you're correct, I had mixed up the concepts of triggers and input bindings after reading the documentation that claims:

I dug a little further and it looks like you're correct, I had mixed up the concepts of triggers and input bindings after reading the documentation that claims: > You can mix and match different bindings to suit your needs. Bindings are optional and a function might have one or multiple input and/or output bindings.[0] However, there is some documentation explaining how to execute a function that does not have a HTTP trigger via HTTP[1]. The example uses the function app's master key though, it'd be interesting to see if that's a requirement or if you could use a key scoped only for invocation of the specific function. [0]https://docs.microsoft.com/en-us/azure/azure-functions/functions-triggers-bindings?tabs=csharp https://docs.microsoft.com/en-us/azure/azure-functions/funct... [1]https://docs.microsoft.com/en-us/azure/azure-functions/functions-manually-run-non-http https://docs.microsoft.com/en-us/azure/azure-functions/funct...