BUILT FOR DEVELOPERS

Powerful & Expressive
Text-to-Speech API

Integrate ultra-realistic, emotional AI voices into your applications with just a few lines of code. Fast, scalable, and ridiculously easy to use.

POST /api/generate-speech{"script": "Hello world!","voice": "Matthias","instructions": "casual"}Your RequestJSON PayloadAPIVoiceKiller APIAI ProcessingAudio OutputMP3 File
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Get Started in
3 Minutes

Our REST API is designed for simplicity and power. Authenticate, send a request, and receive your audio file.

01 Authentication

Pass your API Key and User ID in the headers of every request. You can find them in your dashboard after signing up.

api-key: YOUR_API_KEY

userid: YOUR_USER_ID

02 Generate Speech

Send a POST request to the /api/generate-speech endpoint with your text, a chosen voice, and optional instructions.

curl -X POST https://voicekiller.com/api/generate-speech \
     -H "api-key: YOUR_API_KEY" \
     -H "userid: YOUR_USER_ID" \
     -H "Content-Type: application/json" \
     -d '{
       "script": "Hello from the VoiceKiller API!",
       "voice_name": "alloy",
       "instructions": "Speak with a friendly and welcoming tone."
     }' \
     --output speech.mp3

03 Get Available Voices

To see all available voices, make a POST request to the /api/generate-speech/voicelist endpoint.

curl -X POST https://voicekiller.com/api/generate-speech/voicelist \
     -H "api-key: YOUR_API_KEY" \
     -H "userid: YOUR_USER_ID"

Explore Our Voices

Listen to a selection of our high-quality, standard voices available through the API.

J

Jett

Male

A

Ashton

Male

B

Bella

Male

C

Coraline

Female

E

Elara

Male

F

Faye

Neutral

J

Jax

Male

S

Stella

Female

J

Juniper

Male

S

Sienna

Female

L

Liam

Male

C

Claire

Female

L

Lucy

Female

S

Skylar

Female

I

Isabella

Female

H

Harper

Female

H

Hannah

Female

N

Nora

Female

J

Jack

Male

Z

Zoey

Female

L

Lily

Female

J

Jett

Male

A

Ashton

Male

B

Bella

Male

C

Coraline

Female

E

Elara

Male

F

Faye

Neutral

J

Jax

Male

S

Stella

Female

J

Juniper

Male

S

Sienna

Female

L

Liam

Male

C

Claire

Female

L

Lucy

Female

S

Skylar

Female

I

Isabella

Female

H

Harper

Female

H

Hannah

Female

N

Nora

Female

J

Jack

Male

Z

Zoey

Female

L

Lily

Female

E

Evelyn

Female

W

William

Male

S

Sky

Female

O

Oak

Male

A

Avery

Male

R

Riley

Female

P

Pax

Male

S

Storm

Female

B

Blaze

Male

Z

Zen

Female

J

Jordan

Female

O

Onyx

Female

Q

Quest

Male

R

Rune

Male

L

Lyric

Male

I

Indigo

Male

H

Haven

Female

F

Finch

Female

C

Cove

Male

Q

Quill

Male

V

Vale

Female

S

Slate

Female

N

North

Male

R

Reef

Male

W

Wren

Female

J

Jett

Male

S

Sage

Male

B

Blair

Male

R

Romy

Female

A

Arden

Male

K

Kael

Male

S

Sol

Female

E

Evelyn

Female

W

William

Male

S

Sky

Female

O

Oak

Male

A

Avery

Male

R

Riley

Female

P

Pax

Male

S

Storm

Female

B

Blaze

Male

Z

Zen

Female

J

Jordan

Female

O

Onyx

Female

Q

Quest

Male

R

Rune

Male

L

Lyric

Male

I

Indigo

Male

H

Haven

Female

F

Finch

Female

C

Cove

Male

Q

Quill

Male

V

Vale

Female

S

Slate

Female

N

North

Male

R

Reef

Male

W

Wren

Female

J

Jett

Male

S

Sage

Male

B

Blair

Male

R

Romy

Female

A

Arden

Male

K

Kael

Male

S

Sol

Female

API
Pricing

Flexible monthly plans for every developer. Start building with our powerful API today.

Studio

Monthly access to all Studio features, including the API.

$12/month Monthly
  • 120 minutes/month
  • Create Unlimited Voice Clone Models (Dashboard)
  • Dashboard Access to All Voices (53 AI voices and 25 Non AI voices)
  • AI media editor (Coming soon to Dashboard)
  • Voice Clone (Coming soon to API)
  • API Access to AI voices (53)
Get Started

Studio Max

Enhanced monthly plan with more minutes and priority support.

$70/month Monthly
  • 1000 minutes/month
  • Create Unlimited Voice Clone Models (Dashboard)
  • Access to All Voices (53 AI voices and 25 Non AI voices)
  • AI media editor (Coming soon to Dashboard)
  • Voice Clone (Coming soon to API)
  • API Access to AI voices (53)
  • Priority support
  • Minutes rollover
Get Started

Enterprise Pack

For large-scale applications and extensive usage.

Custom Custom
  • Custom based upon Billing
  • Voice Clone API
  • Access to All Voices (53 AI voices and 25 Non AI voices)
  • Dedicated support
  • Custom rate limits
Contact us

Note: API access is included with all Studio plans. Click here to see all pricing options.

API FAQs

Have questions? We've got answers.

How do I get my API key?
You can get your unique API key and User ID by purchasing a plan. They will be available in your API dashboard.
What are the rate limits?
Our API has a rate limit of 60 requests per minute to ensure stability. For higher limits, please contact our sales team for an Enterprise plan.
Which programming languages do you support?
Our API is a standard REST API, which means it can be used with any programming language that can make HTTP requests, such as JavaScript/Node.js, Python, Ruby, PHP, Java, Go, and more. We provide examples in cURL, JavaScript, and Python.
Can I use the API for commercial purposes?
Yes, the Pro and Enterprise plans include a commercial license, allowing you to use the generated audio in your products and services.

Ready to Build?

Create an account today and start building with the most advanced text-to-speech API on the market.

Sign Up Now