> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hypersender.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Send Voice
> Send voice messages to WhatsApp users for more engaging and personal communication.
This specialized endpoint will allow you to send voice as if you were recording directly in the WhatsApp application.
## You can send voice messages in two ways:
## Provide a URL for the voice audio.
Please note that the URL must be publicly accessible and not require any authentication or special headers to access the file.
***
## Send the voice audio it self as a file upload.
***
## OpenAPI
````yaml v1/api-reference/whatsapp/whatsapp-collection.json POST /{instance}/send-voice
openapi: 3.1.0
info:
version: v1.0
title: Hypersender WhatsApp API Docs
description: >
The Hypersender WhatsApp API is a powerful api to send and recieve messages
using your own whatsapp number.
Without the high costs of Meta's Whatsapp business API.
In this Docs you'll learn how to use and integrate Hypersnder Whatsapp API
into your existing system/service or application using simple API endpoints.
**What you can Do?**
- Send Text and basic Url messages.
- Send Media through Link or uploaded file.
- Send Audio through Link or uploaded file.
- Send Contact Card
- Send Location
- Send Poll votes
**You can also**
- React to a message
- Forward messages to other chats
- Acknowledge messages (mark as read)
- Star and unstar messages
**Quick Demo**
**Learn how to use Hypersender whatsapp API to send a message using Postman:**
[Demo Link](https://app.hypersender.com/send-whatsapp-message-in-postman) **to easily interact with our API.**
**postman collection**
You can download our [Postman
Collection](https://docs.hypersender.com/whatsapp-postman-collection.json)
to easily interact with our API.
## Servers (Endpoints)
- Production (activated):
[https://app.hypersender.com/api/whatsapp/v1](https://app.hypersender.com/api/whatsapp/v1)
servers:
- url: https://app.hypersender.com/api/whatsapp/v1
description: Production
security:
- Authorization: []
paths:
/{instance}/send-voice:
post:
tags:
- Send Messages
operationId: send-link-audio
parameters:
- name: Accept
in: header
schema:
type: string
example: application/json
examples:
default:
value: application/json
- name: Content-Type
in: header
schema:
type: string
example: application/json
examples:
default:
value: application/json
- name: instance
in: path
required: true
schema:
type: string
example: '{{ instance_id }}'
examples:
default:
value: '{{ instance_id }}'
requestBody:
description: '**Require to use `multipart/form-data`**'
content:
application/json:
schema:
$ref: '#/components/schemas/SendVoiceRequest'
examples:
Example 1:
value:
chatId: 1111111111111@c.us
url: >-
http://commondatastorage.googleapis.com/codeskulptor-assets/week7-brrring.m4a
caption: hypersender
reply_to: string
Example 2:
value:
chatId: 1111111111111@c.us
file: audio.opus
caption: hypersender
reply_to: string
responses:
'201':
description: Successful response
content:
application/json:
schema:
allOf:
- type: object
properties:
key:
type: object
properties:
remoteJid:
type: string
fromMe:
type: boolean
id:
type: string
message:
type: object
properties:
audioMessage:
type: object
properties:
url:
type: string
mimetype:
type: string
fileSha256:
type: string
fileLength:
type: string
seconds:
type: number
ptt:
type: boolean
mediaKey:
type: string
fileEncSha256:
type: string
directPath:
type: string
mediaKeyTimestamp:
type: string
waveform:
type: string
messageTimestamp:
type: string
status:
type: string
x-examples:
Example 1:
content:
url: >-
https://mmg.whatsapp.net/v/t62.7114-24/40934750_1123141612096506_5059779010427990564_n.enc?ccb=11-4&oh=01_Q5AaINJ58zcO7DTlO7DrMAaXKZ3pCWbLWSaQVUM0L3P8JGPa&oe=66B366E1&_nc_sid=5e03e0&mms3=true
mimetype: audio/ogg; codecs=opus
fileSha256: Y28LhNra+eEfRNKwIefqY+UU2Uf0ia4l8PrdScvlXcA=
fileLength: '139027'
seconds: 5
ptt: true
mediaKey: Chqmzo6fWYc++4A2SgwlzgNZ/3KNKjm3ceaVPSZyNVY=
fileEncSha256: DCsffr+JWSnJz+F1cf+uGxY/N0eXmqZxVwKvc2otd40=
directPath: >-
/v/t62.7114-24/40934750_1123141612096506_5059779010427990564_n.enc?ccb=11-4&oh=01_Q5AaINJ58zcO7DTlO7DrMAaXKZ3pCWbLWSaQVUM0L3P8JGPa&oe=66B366E1&_nc_sid=5e03e0
mediaKeyTimestamp: '1720449163'
examples:
Example 1:
value:
key:
remoteJid: 1111111111@s.whatsapp.net
fromMe: true
id: 3EB089F063C03E43EECE9D
message:
audioMessage:
url: >-
https://mmg.whatsapp.net/v/t62.7119-24/31809967_2958746007616712_3774955636954933761_n.enc?ccb=11-4&oh=01_Q5AaIPHnpFjuJwCULeqyHMcDO55BAj3YxolxEVLGXVvVkaKM&oe=67F2DD3D&_nc_sid=5e03e0&mms3=true
mimetype: audio/ogg
fileSha256: ubfaNZ4rY7T7/ghhWnBh1cVf1d00JSHENKunZuHs+yc=
fileLength: 18886
seconds: 10
ptt: true
mediaKey: ARUCxn91XDCjmCvFecREY4Fpg9RSOYa8O5D7TxGWGkE=
fileEncSha256: ER9FB+GEzrKmooWDbNpqenokG1mAtvbIU+Ceo7JeNwQ=
directPath: >-
/v/t62.7119-24/31809967_2958746007616712_3774955636954933761_n.enc?ccb=11-4&oh=01_Q5AaIPHnpFjuJwCULeqyHMcDO55BAj3YxolxEVLGXVvVkaKM&oe=67F2DD3D&_nc_sid=5e03e0
mediaKeyTimestamp: 1741390160
waveform: >-
AAIIAQ0nKCcdX2NTSkUqHQ4KAgICBAUGAwEAAAAAAAAAAAQFARAmMlFQVT4PHkggAgEHGVldZFpGMBYKAwQEBg==
messageTimestamp: 1741390160
status: PENDING
'422':
description: Validation Error
content:
application/json:
schema:
$ref: '#/components/schemas/ValidationError'
'500':
description: Internal Server Error
content:
application/json:
schema:
$ref: '#/components/schemas/ServerError'
security:
- Authorization: []
components:
schemas:
SendVoiceRequest:
type: object
properties:
chatId:
type: string
description: Contact number - see chatId docs
example: 111111111111@c.us
url:
type: string
description: url to send (required without file)
file:
type: string
description: file to send (required without url)
caption:
type: string
description: caption for the file
reply_to:
type: string
description: reply to message id
required:
- chatId
ValidationError:
type: object
title: ValidationError
properties:
message:
type: string
errors:
type: object
description: Invalid or missing feilds will be shown here
statusCode:
type: number
example:
message: The given data was invalid.
errors: {}
statusCode: 422
required:
- errors
- statusCode
x-examples:
Multiple fields Error:
message: The given data was invalid.
errors:
messages:
- The number you want to send the message to is not on whatsapp.
jid: 20121323124131@s.whatsapp.net
exists: false
statusCode: 422
'Single Field error ':
message: The given data was invalid.
errors:
messages:
- textMessage.text should not be empty
statusCode: 422
x-stoplight:
id: 90x3wfxw7gqcb
ServerError:
type: object
title: ServerError
properties:
message:
type: string
example:
message: Internal Server Error
x-stoplight:
id: 2fhq2gihsfreh
securitySchemes:
Authorization:
type: http
scheme: bearer
````