VAPI

Vapi helps developers build, test, and deploy voice agents at scale. We enable everything in between the raw models and production, including telephony, test suites, and real-time analytics.

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VAPI

Vapi helps developers build, test, and deploy voice agents at scale. We enable everything in between the raw models and production, including telephony, test suites, and real-time analytics.

Join

support

faq

foreign-sapphire

8/28/2025

Messages for Chained Tool Calls

Hi team, we have an MCP built which our agent calls as a tool.
The issue is, everytime it calls the MCP the tool call message will trigger and have multiple messages when tools are chained. Eg. Person lookup -> Appointment booking ...

xenial-black

8/28/2025

SSML Parsing does not work

Hi Vapi team, I am patching my assistant with the following config: {...

automatic-azure

8/28/2025

How to - Duplicate Workflow

How do you duplicate a workflow ?

genetic-orange

8/28/2025

error assistant + custom tool + chat

in a call context my tools are well called but with the chat api there is an error i see no result returns even if the result is {"results": [{"toolCallId": "call_GYAe4jsQOInW5mLQkXx1yYHx", "result": "lundi 01 Septembre 2025"}]} it seem to be the correct format

extended-salmon

8/28/2025

Vapi - GHL Calendar integration

I've integrated GHL to Vapi and inserted the Calendar ID per instructions into the "Check Calendar Availability" Tool in Vapi, and when I try to schedule an appointment, the Ai tells me there's no availability at all in the calendar no matter how far into the future I ask it to check. Please help. And is there any work around or other options to integrate the calendar into Vapi? Thank you!

sensitive-blue

8/28/2025

AnalysisPlan - Summary returning random response

There are numerous calls which had a random response in the Analysis Plan - Summary. There is no transcript and the call either silence time out or was prematurely ended by the caller. There is also no transcript in the call log. But the summary contains some random transcript which doesnt make sense at all. Please urgently advise as we have client deployment. call ID - e6d4a053-8863-4fd3-b7c9-53a2b64f07a0, 4db76d6a-d3b0-4c02-bad9-33592bb57cbb, 610131db-4aa7-4d0e-a8d3-46fffff7ed3a...

helpful-purple

8/28/2025

maximum call duration on workflow

Hi, Whatever I do I cannot increate the limit on the incoming call. There are no settings anywhere and when I try to use the API it gives and error. Any idead anyone ?...

afraid-scarlet

8/28/2025

Can assistantOverrides be used for inbound calls?

Hi,
For outbound calls, I’ve been successfully using assistantOverrides to override settings like voice, firstMessage, and variableValues.
For inbound calls, can I return something like the following in the assistant-request webhook response and have it applied in the same way?...

genetic-orange

8/28/2025

Extremely Urgent: Calls fail with "Silence Timed Out"

Yesterday we had two customer calls spontaneously fail with reason "Silence Timed Out". This is hurting our reputation as a young company. Call IDs: - 1e69548e-2296-410b-80fe-d1514668767c - 3eb1b082-4381-4277-957c-3447d5c67620 ...

genetic-orange

8/28/2025

Extremely Urgent: Missing Analysis Object in Some Calls

We are facing a critical issue: for some calls, the analysis object is missing. Example Call ID: 6ea99c44-0521-455f-8aec-673802ed1592 This is a mission-critical problem for us and needs urgent attention. Thank you for your help!...

wise-white

8/28/2025

Outbound webhook IPs

Hi Vapi team 👋
We are configuring our reverse proxy to only allow traffic from Vapi.
Could you please confirm if there is an official list of public IP addresses that Vapi uses for outbound webhooks?
If the IPs are dynamic, what is the recommended approach for handling this in production?
...

extended-salmon

8/28/2025

It just stopped speaking abruptly at the end

Call id: 37e55c8e-57a3-4c11-bd7e-08ee57d2d7f5 please treat as a priority issue, we are in middle of demo for our big enterprise deal...

adverse-sapphire

8/28/2025

How to fix the yellow warning in vapi dashboard and publish the agent.

eastern-cyan

8/28/2025

Inquiry on enterprise vapi plan

Does VAPI support white labelling using enterprise plans on VAPI?

flat-fuchsia

8/28/2025

Agent does not respond after using a tool

I have an agent instrumented with a few tools. These tools are captured by my web app, when I detect a tool call, I fetch some data and pass it to the assistant. It used to work flawlessly for a few weeks. But for the past few days the agent began to intermittently go quiet and not respond after fetching the data. I would have to manually ask it "let me know once you find something" and then it would respond. Today the problem appears to be fixed, but I would like to understand this problem better in order to make sure it does not happen in production....

adverse-sapphire

8/28/2025

Is there a way to include the caller's phone number in end-of-call report

Without asking the caller, how do I extract the caller's phone number and put it in the end-of-call report

inland-turquoise

8/28/2025

gpt-4o-transcribe degraded transcription quality

The gpt-4o-transcribe transcriber has been producing unacceptably bad output over the last day or so. It is noticeably worse than it has been performing and is completely garbling even the voice model output from openai voices. Other transcribers seem to be working fine for me. See screenshot for an example.

rare-sapphire

8/28/2025

Verif just hangs

Im trying to log into my account but the verification solution doesnt work. Is there a way to get this working?

like-gold

8/27/2025

is there any way to stop the voice agent saying "Just a sec"?

Every time my agent calls a tool it says "just a sec" is there any way to disable that?

other-emerald

8/27/2025

Query Tool is down - Seeing too many requests error

For some reason it just stopped working on me. I see Too many requests show up in the response details so maybe you guys need a different API key or something? Here's a call log: https://dashboard.vapi.ai/calls/5abf6df1-eda0-434d-ab7e-91ad21bbc095 and another: https://dashboard.vapi.ai/calls/a06bddac-d53f-4650-aeb4-1fd8aad0ca3b Let me know when this is fixed....