1 endpoint
Unified API
Wire STT, LLM, and TTS together in one integration.
Private Beta Live
One API for Every Voice Agent.
OVoice unifies STT, TTS, and LLM providers behind one API and one billing account so developers can experiment faster and ship production voice agents without vendor lock-in.
1 balance
Billing
Top up once and spend across every provider stack.
0 markup
Economics
Users pay retail rates while OVoice runs on volume discounts.
Core problem
Building a modern voice agent still means stitching multiple vendors by hand.
Financial Friction
Teams pre-fund multiple providers before they know what stack actually works.
- $250 to $500 upfront across three to five billing accounts
- Unused balances stranded across providers
- Separate invoices and no shared spend visibility
Technical Complexity
A simple voice workflow means stitching together authentication, streaming, and retries by hand.
- Different SDKs and WebSocket protocols for every vendor
- Re-integration every time you swap models
- Security and key management duplicated per provider
Slow Optimization
Experimentation is expensive and blind without a single control plane for quality, latency, and cost.
- No cheap way to benchmark combinations side-by-side
- No real-time view of cost and latency trade-offs
- Model updates ship constantly and teams fall behind
Product strategy
Stripe-style simplicity for real-time voice AI infrastructure.
OVoice gives developers one integration path, one invoice, and one balance across leading STT, LLM, and TTS providers. Swap vendors in seconds instead of rebuilding your orchestration layer.
Fund once
Add credits to OVoice and unlock every supported provider immediately.
Compose a stack
Pick any STT, LLM, and TTS combination in one configuration object.
Ship and iterate
Switch providers with one line while tracking usage from one dashboard.
SDK quick start
TypeScriptimport { createVoiceAgent } from "@ovoice/sdk"
const agent = createVoiceAgent({
stt: "deepgram.nova-2",
llm: "gemini-2.5-flash",
tts: "elevenlabs.jessica",
apiKey: process.env.OVOICE_API_KEY,
})
await agent.start()Change `stt`, `llm`, or `tts` in a single config object to test new quality and cost profiles.
Launch providers
Build complete voice agents with mix-and-match provider control.
Speech-to-Text
Capture user input with reliable transcription.
Deepgram Nova-2Deepgram Nova-1OpenAI Whisper
Language Models
Route agent reasoning to the model that fits your use case.
Gemini 2.5 FlashGPT-4oClaude Sonnet 4
Text-to-Speech
Deliver natural voice output optimized for latency or quality.
ElevenLabsOpenAI TTS-1OpenAI TTS-1-HD
Business model
Zero markup pricing with transparent economics.
Users pay exactly what providers charge at retail rates. OVoice earns through volume discounts negotiated behind the scenes, so your pricing stays predictable while we scale with your usage.
Trust-first positioning: no hidden percentage on top of model usage.
Better experimentation: one $10 top-up is enough to benchmark many stacks.
Better margins at scale: provider discounts improve as aggregate traffic grows.
Start building
Ship faster with one voice stack instead of five vendor dashboards.
If you are building support bots, AI phone workflows, or voice-first product features, OVoice gives your team a direct path to production without orchestration overhead.