> ## Documentation Index > Fetch the complete documentation index at: https://docs.mka1.com/llms.txt > Use this file to discover all available pages before exploring further. # Streaming text to speech > Convert text to speech with real-time streaming audio delivery. **Key Features:** - Low-latency audio streaming - playback can start immediately as chunks arrive - Automatic language detection - Multiple format support: MP3 or PCM/WAV - High-quality audio: 24kHz sample rate, 16-bit mono **Request Body:** - `text`: Input text to convert to speech - required - `language`: Language code (default: "auto") - "auto" for automatic detection, or ISO 639-1 codes: en, zh, hi, es, ar, bn, pt, ru, ja, pa, de, ko, fr, tr, it, th, pl, nl, id, vi, ur - `format`: Audio format (default: "mp3") - "mp3" for compressed MPEG audio (96 kbps) or "pcm" for uncompressed WAV - `model`: TTS model identifier (default: "auto") - "auto" selects the default provider; a registry-resolvable id dispatches to the matching provider (note: not all providers support `format: "mp3"`) **Response:** - Streams audio chunks in real-time - Returns `X-Language-Code` header with detected/used language - Content-Type: `audio/mpeg` (MP3) or `audio/wav` (PCM) - When `store` is `true`, returns the `X-Tts-Id` header with the id the history record will be stored under; persistence is best-effort and completes shortly after the stream ends **Use Cases:** - Real-time applications requiring immediate audio playback - Interactive voice responses - Low-latency text-to-speech scenarios ## OpenAPI ````yaml https://apigw.mka1.com/speakeasy.json post /api/v1/llm/speech/tts/stream openapi: 3.1.1 info: title: MKA1 API version: 1.1.0 description: >- The MKA1 API is a RESTful API that provides access to the MKA1 platform. Learn how to get started with the API and the TypeScript SDK [here](https://mka1.apidocumentation.com/guides/getting-started). license: name: Proprietary servers: - url: https://apigw.mka1.com description: MKA1 API Gateway - url: / description: Relative server URL (configurable via SDK constructor) security: [] tags: - name: Resource Authorization description: >- Manage permissions for LLM resources. Create resources, grant/revoke permissions, and delete resources. Only resource owners can grant, revoke, or delete permissions. x-displayName: Resource Authorization - name: Embeddings description: >- Text embedding API endpoints for generating vector representations of text. Create semantic embeddings for search, clustering, and similarity matching using various embedding models. x-displayName: Embeddings - name: Feedback description: >- User feedback API for rating and commenting on chat completions. Collect thumbs up/down ratings and detailed feedback to improve model responses and track user satisfaction. x-displayName: Feedback - name: Images description: >- Image generation API endpoints for creating images from text descriptions. Generate images with control over size, quality, and style. x-displayName: Images - name: MCP Vault description: >- MCP vault API for storing user-owned MCP server configurations and encrypted credentials. Agents reference vault IDs so secrets are resolved only at tool execution time. x-displayName: MCP Vault - name: Speech description: >- Speech API endpoints for audio processing. Convert text to natural-sounding speech (TTS) or transcribe speech to text (STT) in different languages. x-displayName: Speech - name: Usage description: >- Usage tracking and analytics API for monitoring token consumption, request counts, and cost analysis. View detailed statistics per user, model, and time period. x-displayName: Usage - name: Extract description: >- Structured data extraction API for extracting information from files. Define JSON schemas to extract structured data from images, PDFs, and documents. Supports reusable schema templates. x-displayName: Extract - name: Text Classification description: >- Text classification API for categorizing text into predefined labels. Use AI models to classify text content for sentiment analysis, topic categorization, and content moderation. x-displayName: Text Classification - name: Responses description: >- Agent-powered responses API for creating AI agents with autonomous tool usage. Build conversational assistants that can use web search, file operations, image generation, code execution, computer use simulation, and MCP integrations. Supports background processing, streaming, and real-time status tracking. x-displayName: Responses - name: Files description: >- File management API for uploading, storing, and managing files with automatic expiration and S3 integration. Upload files that can be used with Assistants, Vector Stores, and other features. Files are stored in S3 with metadata tracked in PostgreSQL. Supports automatic cleanup of expired files. x-displayName: Files - name: Vector Stores description: >- Vector store API for storing and searching documents using embeddings. Create vector stores, upload files with automatic chunking and embedding generation, and perform semantic search. Files are processed asynchronously using Temporal workflows for durability. Supports automatic cleanup of expired stores and LanceDB for efficient vector storage. x-displayName: Vector Stores - name: Conversations description: >- Conversation management API for storing and retrieving conversation state across Response API calls. Create conversations, add items (user messages, assistant messages, system messages), and maintain conversation history. Supports metadata tracking and multi-turn dialogue state management. x-displayName: Conversations - name: Guardrails description: >- AI safety guardrails API for configuring content moderation and security policies. Set up ban word lists, prompt injection detection, and system prompt leakage prevention. Guardrails apply to all requests from an account and can be tested before deployment. x-displayName: Guardrails - name: Models description: >- Model listing API for discovering available models. Returns model IDs, ownership, and metadata for all registered models in the gateway. x-displayName: Models - name: Skills description: >- Skills API for managing versioned bundles of instructions and files following the Agent Skills standard. Create, version, and download reusable skill packages that include SKILL.md manifests for agent environments. x-displayName: Skills - name: Chat Completions description: >- **Deprecated: Use the Responses API (`/api/v1/llm/responses`) instead.** Chat completion endpoints with support for streaming, tool calls, and multiple providers. x-deprecated: true x-displayName: Chat Completions - name: Batches x-displayName: Batches - name: Evals x-displayName: Evals - name: Fine-Tuning x-displayName: Fine-Tuning - name: Memory Stores x-displayName: Memory Stores - name: Prompts x-displayName: Prompts - name: API Key x-displayName: API Key - name: Organization x-displayName: Organization - name: Cluster Admin x-displayName: Cluster Admin - name: Sessions description: Create, inspect, access, and terminate sandbox sessions. x-displayName: Sessions - name: Browser description: >- Connect to browser sessions through the gateway port proxy. Browser sessions expose a Chrome DevTools Protocol endpoint on port 9222. x-displayName: Browser - name: Execution description: Run shell commands and code inside an existing sandbox session. x-displayName: Execution - name: Workspace description: >- Inspect the workspace manifest, transfer files or archives, and download generated artifacts. x-displayName: Workspace - name: Sandbox Usage description: >- Aggregate sandbox usage statistics across sessions, execution, and workspace operations. x-displayName: Sandbox Usage - name: Sandbox Pricing description: >- Cluster-admin management of the sandbox compute rate card used for budgeted spend. x-displayName: Sandbox Pricing - name: Agents description: Create and manage reusable agent definitions. x-displayName: Agents - name: Agent Versions description: Inspect an agent's configuration history and roll back to a prior version. x-displayName: Agent Versions - name: Agent Runs description: Execute saved agents and inspect persisted run results. x-displayName: Agent Runs - name: Agent Connectors description: >- Connect saved agents to external messaging channels such as Telegram, including text, photo, and supported document exchange. x-displayName: Agent Connectors - name: Agent Schedules description: Create and manage scheduled or recurring saved agent runs. x-displayName: Agent Schedules - name: schema-4_other x-displayName: other - name: Budgets x-displayName: Budgets - name: Settings x-displayName: Settings - name: Deployments description: Long-lived inference servers. x-displayName: Deployments - name: Fine-Tune Jobs description: Submit, monitor, and cancel fine-tune jobs. x-displayName: Fine-Tune Jobs - name: Container Images description: Custom container images for deployments and jobs. x-displayName: Container Images - name: Serving Models description: Models registered for deployment and fine-tuning. x-displayName: Serving Models - name: Volumes description: Persistent storage for weights and checkpoints. x-displayName: Volumes - name: Secrets description: Credentials injected into your workloads. x-displayName: Secrets - name: Accelerators description: Available accelerator types (GPU, NPU, TPU). x-displayName: Accelerators paths: /api/v1/llm/speech/tts/stream: post: tags: - Speech summary: Streaming text to speech description: >- Convert text to speech with real-time streaming audio delivery. **Key Features:** - Low-latency audio streaming - playback can start immediately as chunks arrive - Automatic language detection - Multiple format support: MP3 or PCM/WAV - High-quality audio: 24kHz sample rate, 16-bit mono **Request Body:** - `text`: Input text to convert to speech - required - `language`: Language code (default: "auto") - "auto" for automatic detection, or ISO 639-1 codes: en, zh, hi, es, ar, bn, pt, ru, ja, pa, de, ko, fr, tr, it, th, pl, nl, id, vi, ur - `format`: Audio format (default: "mp3") - "mp3" for compressed MPEG audio (96 kbps) or "pcm" for uncompressed WAV - `model`: TTS model identifier (default: "auto") - "auto" selects the default provider; a registry-resolvable id dispatches to the matching provider (note: not all providers support `format: "mp3"`) **Response:** - Streams audio chunks in real-time - Returns `X-Language-Code` header with detected/used language - Content-Type: `audio/mpeg` (MP3) or `audio/wav` (PCM) - When `store` is `true`, returns the `X-Tts-Id` header with the id the history record will be stored under; persistence is best-effort and completes shortly after the stream ends **Use Cases:** - Real-time applications requiring immediate audio playback - Interactive voice responses - Low-latency text-to-speech scenarios operationId: textToSpeechStreaming parameters: - name: X-On-Behalf-Of in: header required: false schema: type: string description: Optional external end-user identifier forwarded by the API gateway. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/TextToSpeechStreamingRequest' example: text: Hello, welcome to our text-to-speech service. language: en format: mp3 responses: '200': description: Streaming audio in MP3 or PCM/WAV format with language code header headers: X-Language-Code: description: The language code used for speech synthesis schema: type: string X-Tts-Id: description: >- ID the text-to-speech history record will be stored under. Present only when the request set `store: true`. Persistence is best-effort and completes shortly after the stream ends, so an immediate lookup can briefly 404 — and if the write fails or is skipped (audio over the 25MB history cap), the id is never assigned and lookups keep returning 404. schema: type: string Content-Type: description: Audio format (determined by format parameter) schema: type: string enum: - audio/mpeg - audio/wav content: audio/mpeg: example: (binary) schema: type: string format: binary description: >- MP3 audio stream (when format=mp3): 24kHz sample rate, 96 kbps bitrate, 16-bit, mono audio/wav: example: (binary) schema: type: string format: binary description: >- PCM/WAV audio stream (when format=pcm): 24kHz sample rate, 16-bit, mono security: - bearerAuth: [] x-codeSamples: - lang: python label: Python (SDK) source: |- from meetkai_mka1 import SDK with SDK( bearer_auth="", ) as sdk: res = sdk.llm.speech.speak_streaming(text="Hello, welcome to our text-to-speech service.", language="en", model="auto", store=False, format_="mp3") # Handle response print(res) - lang: typescript label: Typescript (SDK) source: |- import { SDK } from "@meetkai/mka1"; const sdk = new SDK({ bearerAuth: "", }); async function run() { const result = await sdk.llm.speech.speakStreaming({ textToSpeechStreamingRequest: { text: "Hello, welcome to our text-to-speech service.", language: "en", }, }); console.log(result); } run(); - lang: csharp label: CSharp (SDK) source: >- using MeetKai.MKA1; using MeetKai.MKA1.Types.Components; var sdk = new SDK(bearerAuth: ""); var res = await sdk.Llm.Speech.SpeakStreamingAsync(body: new MeetKai.MKA1.Types.Components.TextToSpeechStreamingRequest() { Text = "Hello, welcome to our text-to-speech service.", Language = TextToSpeechStreamingRequestLanguage.En, }); // handle response components: schemas: TextToSpeechStreamingRequest: type: object properties: text: type: string minLength: 1 description: Input text to convert to speech language: enum: - auto - en - zh - hi - es - ar - bn - pt - ru - ja - pa - de - ko - fr - tr - it - th - pl - nl - id - vi - ur type: string default: auto description: >- Language code: 'auto' for automatic detection, or ISO 639-1 language codes model: type: string default: auto description: >- TTS model identifier. Defaults to 'auto', which selects the default provider. Registry-resolvable ids dispatch to the matching provider. examples: - auto store: type: boolean default: false description: >- When true, persist this generation (input text, parameters, and the generated audio) to text-to-speech history. Defaults to false. format: enum: - mp3 - pcm type: string default: mp3 description: >- Audio output format: 'mp3' for MPEG audio (default), or 'pcm' for uncompressed PCM/WAV (24kHz, 16-bit, mono) required: - text description: >- Request parameters for streaming text-to-speech conversion with language selection and format options. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: API Key description: >- Gateway auth: send `Authorization: Bearer `. For multi-user server-side integrations, you can also send `X-On-Behalf-Of: `. ````