Starter
$7.99
5 hours included
For product validation, small integrations, and early experiments.
Credits never expire
Word-level timestamps in milliseconds
The fastest, developer-first WhatsApp Audio API.
Convert raw .ogg voice notes into structured JSON with precise word-level timing, clean API responses, and prepaid billing that never expires.
No subscriptions
Credits never expire
GitHub or Google sign-in required
Audiex Pro overview
Clean API, predictable billing, production-ready output
Live
Input
Raw WhatsApp .ogg audio, posted as multipart/form-data or uploaded from your app.
Output
Structured JSON with transcript text, segments, and word-level timestamps in milliseconds.
Billing
Pay once, consume credits only when you transcribe, and keep the balance forever.
Access
Free minutes require GitHub or Google authentication to reduce abuse and block throwaway emails.
Response integrity
Milliseconds preserved
text
"Let's ship the release after lunch."
words
26 aligned tokens with start_ms and end_ms.
Live Playground
Ship against a response your backend can trust.
One request in, structured JSON out. The layout below mirrors what developers expect when debugging audio pipelines.
Request
curl sending a WhatsApp .ogg file
POST /v1/transcribe
curl -X POST "https://audiex.pro/v1/transcribe" \
-H "Authorization: Bearer sk_live_xxx" \
-F "file=@whatsapp-voice-note.ogg" \
-F "language=en"
Authorization
Bearer token
Body
multipart/form-data
Audio
.ogg from WhatsApp
Response
Structured JSON with timestamps in milliseconds
200 OK
{
"text": "Let's ship the release after lunch.",
"language": "en",
"duration_ms": 12840,
"words": [
{
"word": "Let's",
"start_ms": 220,
"end_ms": 460
},
{
"word": "ship",
"start_ms": 468,
"end_ms": 690
},
{
"word": "release",
"start_ms": 792,
"end_ms": 1130
}
]
}
Audiex normalizes the output for your app, so your frontend can render transcripts, timing bars, and playback cursors without extra parsing.
Pricing
Prepaid credits built for teams that want predictable spend.
Pay-as-you-go, credits never expire, and there are no subscriptions hiding in the fine print.
Lower friction, higher clarity
Most popular
Growth
$19.99
15 hours included
Ideal for a real feature launch, active users, and weekly processing.
Pay-as-you-go, credits never expire
Agency
$49.99
45 hours included
Built for client work, recurring operations, and multiple projects.
Scale without subscription lock-in
Enterprise
$99.99
100 hours included
For high-volume teams that want room to grow without re-buying each month.
Credits never expire
API Documentation
A single endpoint designed to feel boring in the best way.
POST /v1/transcribe accepts multipart audio, checks your token, and returns structured data ready for product use.
Request overview
- Headers
- Authorization: Bearer sk_live_..., Content-Type is set automatically by multipart/form-data clients.
- Body
- file (required): .ogg voice note from WhatsApp. language (optional): BCP-47 code such as en, es, pt-BR.
- Response
- Transcript text, language, duration, segments, and words with timestamps in milliseconds.
Standard errors
Predictable failures
401
Unauthorized
Missing or invalid bearer token.
402
Payment required
No credits left or billing balance is exhausted.
400
Bad request
Empty payload, unreadable audio, or malformed form data.
Example response shape
{
"text": "Let's ship the release after lunch.",
"language": "en",
"duration_ms": 12840,
"words": [
{ "word": "Let's" , "start_ms": 220, "end_ms": 460 },
{ "word": "ship", "start_ms": 468, "end_ms": 690 },
{ "word": "release", "start_ms": 792, "end_ms": 1130 }
]
}
Abuse Control
Free access is gated with real identity, not throwaway inboxes.
The 10 free minutes require authentication with GitHub or Google, which keeps the trial clean and prevents disposable-email abuse.
1
Sign in with GitHub or Google
Only verified identities can claim the free tier.
2
Receive 10 free minutes
Enough to test the API on real WhatsApp audio before paying.
3
Upgrade only when it is useful
No card is required to start, and no spammy sign-up path is needed.
Disposable and temporary emails are intentionally blocked to protect the free trial from abuse.
Terms & Conditions
Audiex Pro is a prepaid transcription service. Usage is measured against processed audio duration, and credits are deducted when a request is accepted and processed.
Refund Policy
If the service does not meet your expectations, we offer a 14-day refund for unused balance. Requests are reviewed against account activity and the remaining credit balance.