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

optimistic-gold

8/27/2025

Indian Mobile number

i Want to integrate indian no for outbound calls but not getting any option for same as only option is their to get us Numbers, can anyone help on same

stormy-gold

8/27/2025

API call during call referencing the callers phone number

I can see the correct caller number in the call logs under customer.number (e.g. "+6140…") and it’s present as soon as the call starts, but inside the Assistant runtime I can’t access it reliably with {{phone}} or {{customer.number}} when calling tools. Is there a supported way to reference the live customer.number directly in Assistant prompts/tools during the call, or do I need to always pass it in from a Workflow? I had the lookup call tool working in a workflow but when I try it in an assistant it doesnt work. Have tried multiple variables like {{phone}} as well....

correct-apricot

8/27/2025

How can we play an mp3 audio file ( recorded disclosure) before the agent say its greetings.

How can we play an mp3 audio file ( recorded disclosure) before the agent say its greetings. Please send me video tutorials and documentation. Thank you

causal-orange

8/27/2025

Verification issue

i signed in with my usual details and it asked me to do Veriff verification. I completed that and veriff said it will take 1-3 mins and the window will be closed. But that never happened and as i tried to login then the veriff verification pop up is coming again despite completing the verification. Please solve, it is urgent.

xenial-black

8/27/2025

Verification issue

I am stuck at this screen. It was fixed from support last week but now it is happening again

foreign-sapphire

8/27/2025

VAPI, How to disable call auto retry

I am facing an issue where if my customer hangs up a call I made (POST /call), Vapi retries the call in a matter of a few minutes. This surprised me as I return a blanket 200 to all websocket messages, and I have no retry logic in my own server message handler. This is an issue for me because I would not like to retry calls when if they fail under certain conditions. I would be very happy if you could provide directions....

wee-brown

8/27/2025

Headers not being added to dynamic handoff tool request

With the handoff tool, we are able to request a handoff based off of a dynamic server endpoint. The documentation says that we should be able to add in headers as key-value pairs, but those headers are not coming through on the request { type: "handoff", destinations: [...

xenial-black

8/27/2025

Vapi Assistant Keeps saying "zero" in place of "o"

I am having an issue where my Vapi assistant keeps saying 0 instead of o. For example if I say the last name Moore, it interprets it as M o 0 r e. I've tried everything I know in Vapi API. Deepgram keywords, ElevenLabs pronuciation dictionaries, prompting directly in my assistant prompt. This only happens with double Os. (o o) Call IDs:...

ambitious-aqua

8/26/2025

VAPI Cannot Hear Me

While running any type of test whether from the Workflow or the regular agent the system cannot hear me whatsoever and just ends the call. This has been going on since at least ten days ago. Of course I selected Allow when the prompt asked if I wished to allow VAPI to use my mic. And yes, I have credits. Same problem with the VAPI AI agent support chat, Harry cannot hear me and therefore does not respond....

robust-apricot

8/26/2025

Web Calls no longer starting

48851ac4-60cd-470e-aa12-b146d54a0b29 check out that assistant we're using 11labs, deepgram, openAI...

ambitious-aqua

8/26/2025

Won't Make Test Call

The button sits there showing Connecting forever and does not connect. Previous attempt showed that then sent the error at the bottom of the page that the call ended. Here's that call log: c94f4ee2-bb61-4e99-b9b2-cf672396efc5 ...

probable-pink

8/26/2025

Issue with recurring payments failing on our account

We’re having an issue with the credit card on our account. For some reason we don’t understand, the card we had set up started failing payments. We replaced it a few weeks ago, but now the new card (which had been working perfectly until today) also started failing. We’d like to know if this could be an issue on VAPI’s side, or if it’s the bank declining the recurring payments. Our account is set to “Pay as you go” with recurring $10 charges. Because this account has a high call volume, we usually see between 2–6 recharges per day. Could you please check the logs on your end before we contact the bank?...

eastern-cyan

8/26/2025

CALL ENDED

I’m experiencing an issue with my VAPI agent — whenever I try calling it on the web, the call ends immediately. call id: da36b87f-26d7-4aad-9427-f3fbc7b02f1b

xenial-black

8/26/2025

Data Processing Agreement

How do we obtain Vapi's Data Processing Agreement (DPA)? We have tried submitting a request through the trust center and haven't heard back.

correct-apricot

8/26/2025

Call parameters in LangFuse Metadata

I have defined specific parameters in the metadata for LangFuse per the docs. The data received in LangFuse is receiving the literal parameter names. Are the following parameters supported in within observabilityPlan?...

genetic-orange

8/26/2025

SIP Number Unreachable

Please assist. I have created a SIP trunk and linked the BYO phone number to my assistant however I am not receiving any inbound calls. When I call the number I receive a message “The person you are trying to reach is not available…”

fascinating-indigo

8/26/2025

VERIFF UNABLE TO VERIFY MY IDENTITY

I'm unable to log into my account. It's asking me to verify my identity .. I’ve uploaded the required images, but it’s been stuck on 'processing' with no update. This is urgent, please assist as soon as possible!

harsh-harlequin

8/26/2025

Unexpected Multi-LLM Usage Causing High Call Costs

Hi Vapi team, We’ve noticed an issue where one of our assistant calls was unexpectedly routed through multiple LLM providers, which caused unusually high costs. Details:...

deep-jade

8/26/2025

Give to inbound assistant the phone number of the calmer

Hello @Vapi @Vapi Support Bot I am trying to pass in the prompt {{customer.number}} so my assistant knows who is calling (useful to record in Gsheet, and send an SMS with another provider than Twilio). However when I do that the variable doesn’t get populated with the caller number. What am I getting wrong ? #{{customer.toNumber}} No Longer Working ....

other-emerald

8/26/2025

Extract customer number without country code +1 {{short_number}}?

Hello! How to extract inbound call customer number without country code +1 {{short_number}}?

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