Dialog API
So i keep getting multiple errors:
500 - "{"statusCode":500,"message":"Internal server error"}"
Endpoint = https://general-runtime.voiceflow.com/state/user/test-user/interact
Headers:
{
"Content-Type": "application/json",
"Authorization": "Bearer VF.DM.RESTOFMYKEY",
"versionID": "production"
}
Body:
{
"action": {
"type": "launch"
}
}
it's published from development to production, i got my API key correct
im on a pro trial so not paying yet so unsure?
1 Reply
Most 500s on the DM API are caused by the request not matching what the runtime expects. In your call two things stand out:
1. Authorization header should be ONLY the key – no “Bearer ” prefix
The API key itself already identifies the scheme, so adding
Bearer makes the key invalid and the runtime can’t resolve the version, which is returned as a generic 500.
2. Everything else in your request looks fine
After removing the Bearer prefix you should receive a normal 200 response with an array of trace objects rather than the 500.
Extra checks if you still see an error:
• Make sure the API key is copied from Integration › API Key of the SAME project you published. It must start with VF.DM..
• If you just published, wait ~30 s and try again, or use header versionID: development to hit the live canvas version.
• The Pro trial plan fully supports the DM API – no payment is required for it to work.
Docs: https://docs.voiceflow.com/reference/stateinteract-1Voiceflow
Interact
Sends a request to advance the conversation session with your Voiceflow project.
Requests
There are different types of requests that can be sent. To see a list of all request types, check out the documentation for the action field below.
To start a conversation, you should send a launch request . Th…