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
Sign Up Now right-arrow

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

M

Marin

Female

C

Cedar

Female

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

$12 /month
  • 240 minutes/month
  • 53 AI voices via API
  • Unlimited voice clones
  • All 78 voices on dashboard
POPULAR

Studio Max

$70 /month
  • 2000 minutes/month
  • 53 AI voices via API
  • Unlimited voice clones
  • All 78 voices on dashboard
  • Priority support

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