For developers
Studio-quality audio in one API call.
The audio enhancer, noise removal, transcription, and every other Audo tool, through one simple API. Pay as you go, with no subscription.
curl -H "Authorization: Bearer $AUDO_API_KEY" \
-F file=@zoom-call.m4a \
https://audo.ai/api/try/enhance-voice \
-o zoom-call-studio.wav→ zoom-call-studio.wav · studio-quality voice
What you can build
The same tools as the website, as building blocks for your product.
Studio-quality voice on every upload
Podcast, course, and video apps: turn phone and laptop recordings into clear, studio-quality voice.
enhance_voice
Clean calls and meetings
Remove fans, traffic, and keyboards from recorded calls before anyone listens back.
remove_noise
Transcripts with speakers
Searchable text, subtitles, and speaker labels in many languages.
transcribe_audio
Editing in the pipeline
Cut silences and filler words, level speakers, and join clips without a timeline.
remove_silence
Ready to publish
Hit podcast and streaming loudness targets on every file, automatically.
adjust_loudness
AI voices, cloning, and voice design
Generate multi-model TTS, design or clone reusable account voices, and run speech-to-speech voice conversion.
clone_voice
Captions, 9:16 reframe, and video workflows
Burn animated subtitles, track active speakers into vertical clips, and chain multi-step server workflows.
add_captions
Any format in, any format out
Take MP4, MOV, M4A, and more. Return MP3, WAV, or whatever your app needs.
convert_audio
Three ways in
Free API
One curl request, no key. Free within each tool's daily allowance, plus plain-language tool discovery.
Try itREST API
Full files, scripts, saved voices, and multi-step workflows with an API key and upfront quotes.
API referenceMCP server
Give your own agent every Audo tool, find_tools discovery, and saved voices with OAuth or a bearer key.
MCP docs
Pay as you go
1¢a minute and up, by tool
An hour of the audio enhancer is $3. No subscription, no minimums, and failed jobs are free.
Auto-refill
Below $5, add $25.
Pick your own amounts and a monthly limit. Audo charges your saved card the moment your balance runs low, so your app never stops.
Volume pricing
Pay less as you grow.
Most teams that ask get a lower rate. Tell us what you're building and roughly how much you process, and we'll email you a rate.
- A reply within a day
- No sales call
- No contract or minimums
Questions
Do I need a key to try it?
No. The free API, such as the noise removal API, runs the first minutes of a file with no key. Add an API key for whole files.
What happens when my balance runs low?
Turn on auto-refill and Audo tops up your balance with your saved card the moment it drops below the amount you pick, up to a monthly limit. Your app never stops.
Do you offer volume pricing?
Yes, and most teams that ask get a lower rate. Tell us what you're building and roughly how much audio or video you process, and we'll email you a rate within a day. No sales call, no contract.
Am I charged for failed jobs?
No. A job is charged only if it succeeds.
How long can files be?
Up to 10 hours, audio or video. Files are deleted after 24 hours.