murmr
OpenAI-Compatible API

Stop settling for robotic TTS.
Design voices that sound human.

Describe the voice you want in plain English — "warm narrator, slight British accent, podcast-ready" — and start streaming in 97ms. No ML experience needed.

Free tier available. No credit card.

Ship in 5 minutes

Drop-in replacement for OpenAI TTS. Swap one line, keep your code.

voice-design.py
# Design a voice in natural language
voice = murmr.design(
  instruction="Warm female voice,
    soft Mexican accent, friendly tone",
  language="es"
)

# Generate speech
audio = murmr.speak(
  text="Hola, ¿cómo estás?",
  voice=voice
)|

Built for indie builders

VoiceDesign™

Skip the voice marketplace. Describe what you need in natural language — age, tone, accent, energy — and generate it instantly.

10 Real Languages

Spanish, Portuguese, German, French, Japanese, Korean, Chinese, Russian, Italian, English. Native speakers, not accented English.

ESPTDEFRJAKOZHRUITEN

97ms First Byte

Real-time streaming for voice agents, games, and interactive apps. Fast enough for conversation.

97ms

Self-Host Option

Run on your own GPU. Your audio, your data, your infrastructure. Perfect for sensitive use cases.

What people are building

Voice agents & chatbotsIndie game dialoguePodcast automationAudiobook narrationE-learning coursesAccessibility tools
Live Demo

Try it now

Describe a voice and hear it speak. No signup required.

Try it now

Describe a voice and hear it speak. No signup required.

74/500

Pricing that makes sense

Start free. Scale when you need to.

Free

$0

50K characters/month

  • 3 voice designs
  • All 10 languages
  • Community Discord
Best Value

Starter

$9/mo

200K characters/month

  • 10 voice designs
  • Commercial license
  • Email support

Pro

$29/mo

1M characters/month

  • Unlimited designs
  • Priority support
  • 99.9% uptime SLA

Be first in line

Join developers shipping voice features without the complexity.