Free Text-to-Speech (TTS) APIs & Voice Synthesis

3 providers · 4 free models · Last updated: 12 Nov 2026

← directory · /v1/models · github

Quick Answer

Free text-to-speech API endpoints for voice synthesis and voice agents, including Groq (CanopyLabs Orpheus) and Deepgram (Aura) with generous free allowances and no credit card required.

Total available in this directory: 3 providers, 4 free models. Verified limits below.

⚡ Quick Connect

Text-to-speech audio synthesis with Orpheus on Groq.

Base URL: https://api.groq.com/openai/v1
Model: canopylabs/orpheus-v1-english
Provider: Groq

Python (OpenAI SDK):

from openai import OpenAI

client = OpenAI(
    base_url="https://api.groq.com/openai/v1",
    api_key="your-api-key",  # from Groq
)

response = client.chat.completions.create(
    model="canopylabs/orpheus-v1-english",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

cURL (Terminal / Shell):

curl -X POST "https://api.groq.com/openai/v1/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $API_KEY" \
  -d '{
    "model": "canopylabs/orpheus-v1-english",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Rate Limits & Model Inventory

ModelProviderCostContextRPMTPMRPDDay tokensVerified
canopylabs/orpheus-v1-english Groq$0Text-to-speech101.2K ASH (Audio sec/hr)1003.6K ASD (1h audio/day)2026-11-12
canopylabs/orpheus-arabic-saudi Groq$0Text-to-speech101.2K ASH (Audio sec/hr)1003.6K ASD (1h audio/day)2026-11-12
magpie-tts-zeroshot NVIDIA NIM (build.nvidia.com)$0Model-dependent~40Not publishedNot published~1,000 credits at signup (up to ~5,000)2026-11-12
aura Deepgram$0N/AN/AN/AN/AN/A2026-11-12

Machine-readable: Markdown Twin · providers.json · sitemap.xml

← back to the full directory