Providers

All bundled providers share the credential shape from @ottervoice/provider-utils:

Field	Use
apiKey	Long-lived key (server only — never ship to clients)
tokenBrokerUrl	Client-safe short-lived token mint
fetch	Injectable

Capability map

Capability	Package	Transport
Streaming ASR	@ottervoice/provider-deepgram	WebSocket
Streaming ASR	@ottervoice/provider-elevenlabs	WebSocket
LLM / SSE	@ottervoice/provider-openrouter	HTTP SSE
TTS / STT / Audio LLM	@ottervoice/provider-openrouter	HTTP (demo-optional)
TTS	@ottervoice/provider-azure-speech	REST + SSML

Custom ASR must declare capabilities.streaming correctly — core uses it to choose live chunks vs full-turn audio.

import { createDeepgramASR } from '@ottervoice/provider-deepgram';
import { createOpenRouterLLM } from '@ottervoice/provider-openrouter';
import { createAzureTTS } from '@ottervoice/provider-azure-speech';

const asr = createDeepgramASR({ tokenBrokerUrl: '/api/voice/token' });
const llm = createOpenRouterLLM({
  tokenBrokerUrl: '/api/voice/token',
  model: 'openai/gpt-4o-mini',
});
const tts = createAzureTTS({
  region: 'eastasia',
  voice: 'zh-CN-XiaoxiaoNeural',
  tokenBrokerUrl: '/api/voice/token',
});

Credential details: provider-utils. Factory option tables: API reference and each package’s JSDoc.