URGENT: VAPI Returning Snake_Case Instead of Camel...
# support
m
We are experiencing a critical issue where VAPI has started returning parameter keys in snake_case (e.g., department_id) instead of the camelCase we defined (e.g., departmentId). This change started today, and it was working correctly as camelCase until yesterday. This is not limited to one tool — it affects multiple functions across the platform. We use VAPI in production, and this sudden unannounced change is breaking our application. Please address this immediately. If this was intentional, such a change should have been communicated well in advance. Silent breaking changes are unacceptable in a production environment. Awaiting your urgent response. I have also attached screenshots for yesterday and today of a tool
checkDepartmentAvailability
https://cdn.discordapp.com/attachments/1380061588169560165/1380061588488323104/image.png?ex=68428203&is=68413083&hm=fb064a36097cc95234832e72331948f4cf0bac901e515f04320f95f31294268d& https://cdn.discordapp.com/attachments/1380061588169560165/1380061588718882968/image.png?ex=68428203&is=68413083&hm=48cb688ea04ddad5a36ea851266ff4829fa55412c8f461d3d73891266ea40e17& https://cdn.discordapp.com/attachments/1380061588169560165/1380061589142638653/image.png?ex=68428203&is=68413083&hm=b0dd4910f69db0fa35214793652789280b70a0ba9c038f1c5e558f2871fd939a&
v
There is no official documentation or changelog indicating a recent or intentional change from camelCase to snake_case for tool parameter keys in Vapi. This appears to be an undocumented breaking change. Action: Please escalate this issue directly to Vapi support with your evidence and request urgent clarification or rollback, as this is not a documented or communicated update ([Vapi FAQ](https://docs.vapi.ai/faq)). Source: - [Vapi FAQ](https://docs.vapi.ai/faq)
k
Hey @mubashshir.ansari the issue has been fixed by the team, can you try again with few calls and let me know how it goes for you.