SUPER URGENT - API tools recieving empty paramters...
# supports
shraddha0647
09/01/2025, 6:54 PMYou can check my
Agent Id - 22b445c6-88f2-46af-891c-cfb68db7e764
Call ID - 00b9f50a-d553-4b36-bb21-0035a75ca246
Inside that you can find the model tool call at
{
"id": "log-6359",
"level": 30,
"time": 1756578084927,
"timestamp": 1756578084927000000,
"severityText": "INFO",
"severityNumber": 9,
"body": "Model called tool",
"attributes": {
"category": "tool",
"callId": "00b9f50a-d553-4b36-bb21-0035a75ca246",
"orgId": "fab644c4-ea33-4e4a-83f9-077301a5cd3a",
"type": "function",
"id": "toolu_01DczBrE6mQix3s8x4XH2FLf",
"function": {
"name": "bookAppointment",
"arguments": "{\"date\": \"2025-08-31\", \"startTime\": \"17:00\", \"endTime\": \"18:00\", \"name\": \"Shudawil\", \"email\": \"shraddhagoyal24@gmail.com\", \"phone\": 13373335126, \"reason\": \"Teeth Cleaning\", \"doctorId\": \"ad8ff1a8-9aa4-4ced-9ee3-03f5d090c628\""
},
"isPrecededByText": true
}
}
Here it showins it;s passing argument you can check my tool as well it is also have correct definition but in my api call on server all the required parameters coming blank
shraddha0647
09/01/2025, 8:21 PM@User
a
Aniket Khajanchi
09/02/2025, 6:30 AMHey @shraddha0647
Were you able to get this through?
s
shraddha0647
09/02/2025, 6:56 PM@Aniket Khajanchi Hi Aniket
shraddha0647
09/02/2025, 6:56 PMNo Solution yet
shraddha0647
09/02/2025, 6:57 PM@Aniket Khajanchi did you get any work around ?
a
Aniket Khajanchi
09/02/2025, 6:58 PMNope. Team is supposedly on a holiday.
s
shraddha0647
09/02/2025, 7:05 PMI need it urgently I have emailed them 4 days back
shraddha0647
09/02/2025, 7:05 PMNot sure when they will help, trying different work arounds but not a luck
a
Aniket Khajanchi
09/02/2025, 7:07 PMSame this side
Tool is good. I wish there was an equivalent effort on the support.
Aniket Khajanchi
09/02/2025, 7:10 PMwhich model are you using btw?
Aniket Khajanchi
09/02/2025, 7:11 PM@shraddha0647
s
shraddha0647
09/02/2025, 7:16 PMCurrently I am on pre-pod testing mode, I am trying to switch between GPT 4.1, Claude Sonnet 4. I am more curious about the latency in that
shraddha0647
09/02/2025, 7:18 PM@Aniket Khajanchi just check I did a work around which brings up the data
Whatever you want in your tool, in your prompt define to store as variable with variable name like in my case patientName -> {{patientName}}
And then explicitly mention all the parameters there value in the prompt. That way it shows up the variable
shraddha0647
09/02/2025, 7:19 PMJust give a try may work for you. I still need to do more testing on that
a
Aniket Khajanchi
09/02/2025, 7:21 PMthanks
let me try that once
Aniket Khajanchi
09/02/2025, 7:31 PMbut value is supposed to be taken within the call right
s
shraddha0647
09/02/2025, 7:34 PMYes, mention in prompt mention when taken input store as variable for example
# Step 1 Gather Required infomation
Collect pateint name and store as {{ patientName }}
# CALL YOURTOOLNAME
- Include all paramters
- pateitnName -> {{ patientName}}
shraddha0647
09/02/2025, 7:51 PMMy issue was not related to call transfer @Ron
shraddha0647
09/02/2025, 8:15 PM@User No updates from your side on this as a helpfull steps. This works for me, but I say technically you tool need a fix, because this adds cost for the context
shraddha0647
09/02/2025, 8:16 PMi have 8 tools, imagine passing these defination in my context for all parameters
c
Chiranjeet Mishra
09/03/2025, 12:27 PMHi shraddha0647,
If you are experiencing an issue with API tools receiving empty parameters, I recommend reviewing the parameters being passed to ensure they match the required format and type. Make sure that all required parameters are included and properly populated.
For updating a tool, you can use the PATCH method as outlined in the [Update Tool documentation](https://docs.vapi.ai/api-reference/tools/update) using
/tool/:ididm
Mitej
09/03/2025, 1:13 PMSo basically i have created a tool call using the dashboard. It is not able to send the tool call arguements in the tool call. Now if I add default value for that arg then it keeps on using that specific default value. The call agent is able to understand that he has entered the wrong number but never improves or tries to use the correct id.
Mitej
09/03/2025, 1:14 PM@User Can anybody tell why is this happening? Why empty args are being passed. We are doing it using dashboard
s
shraddha0647
09/04/2025, 4:33 AMAniah I already checked this, it doesn't work
c
Chiranjeet Mishra
09/05/2025, 5:28 PMThank you for providing this information.
We’ll be looking into it further to better understand the situation and determine the next steps. Our team will update you as soon as we have more details, and we truly appreciate your patience and cooperation in the meantime.
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