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@destinedai/voice

v0.1.5

Published

Developer-friendly & type-safe Typescript SDK specifically catered to leverage *openapi* API.

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Links

Maintainers

destined-ai-labsdestined-ai-labs

Keywords

Readme

openapi

Developer-friendly & type-safe Typescript SDK specifically catered to leverage openapi API.

Built by Speakeasy License: MIT

[!IMPORTANT] This SDK is not yet ready for production use. To complete setup please follow the steps outlined in your workspace. Delete this section before > publishing to a package manager.

Summary

Destined Voice API:

Destined Voice API

High-quality Text-to-Speech (TTS) API with diverse speaker voices and Speech-to-Text (STT) evaluation capabilities.

Features

  • 2,400+ Consented Speakers: Diverse demographics including gender, age, region, and accent
  • Voice Cloning: Generate speech in any speaker's voice
  • Batch Processing: Generate audio for multiple speakers asynchronously
  • STT Testing: Evaluate 9 STT providers (Deepgram, AssemblyAI, OpenAI, Google, Azure, Amazon, Soniox, Play.ht)
  • Accuracy Metrics: WER/CER calculation with demographic bias analysis
  • Dataset Import: Upload CSV files for bulk TTS generation and dialog synthesis

Authentication

All endpoints except /health, /v1/speakers, and /v1/stt/calculate-accuracy require a Bearer token. Use Clerk for authentication - include the JWT in the Authorization header.

Authorization: Bearer <clerk_jwt_token>

Pricing Tiers

| Feature | Starter | Pro | Enterprise | |---------|---------|-----|------------| | Price | $100/month | $500/month | $5,000/month | | Evals/month | 1 | Unlimited | Unlimited | | Characters (synthesis) | 1,000 | 100,000 | 1,000,000 | | Real voices | 500 | 5,000 | 10,000+ | | Custom voices | Unlimited | Unlimited | Unlimited | | Dataset download | Add-on | Add-on | Included | | Realtime listening | Add-on | Included | Included | | SOC-2/HIPAA | Add-on | Add-on | Included |

SDKs

Support

Table of Contents

SDK Installation

[!TIP] To finish publishing your SDK to npm and others you must run your first generation action.

The SDK can be installed with either npm, pnpm, bun or yarn package managers.

NPM

npm add <UNSET>

PNPM

pnpm add <UNSET>

Bun

bun add <UNSET>

Yarn

yarn add <UNSET>

[!NOTE] This package is published with CommonJS and ES Modules (ESM) support.

Requirements

For supported JavaScript runtimes, please consult RUNTIMES.md.

SDK Example Usage

Example

import { SDK } from "@destinedai/voice";

const sdk = new SDK({
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  const result = await sdk.health.healthCheckHealthGet();

  console.log(result);
}

run();

Authentication

Per-Client Security Schemes

This SDK supports the following security scheme globally:

| Name | Type | Scheme | | ------------ | ---- | ----------- | | httpBearer | http | HTTP Bearer |

To authenticate with the API the httpBearer parameter must be set when initializing the SDK client instance. For example:

import { SDK } from "@destinedai/voice";

const sdk = new SDK({
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  const result = await sdk.health.healthCheckHealthGet();

  console.log(result);
}

run();

Available Resources and Operations

Billing

CustomVoiceTTS

Datasets

Demo

Dialogs

Environments

Evaluations

Health

InternalSpeakers

Jobs

Scenarios

Speakers

STTTesting

TTSGeneration

Users

Webhooks

Workers

Standalone functions

All the methods listed above are available as standalone functions. These functions are ideal for use in applications running in the browser, serverless runtimes or other environments where application bundle size is a primary concern. When using a bundler to build your application, all unused functionality will be either excluded from the final bundle or tree-shaken away.

To read more about standalone functions, check FUNCTIONS.md.

File uploads

Certain SDK methods accept files as part of a multi-part request. It is possible and typically recommended to upload files as a stream rather than reading the entire contents into memory. This avoids excessive memory consumption and potentially crashing with out-of-memory errors when working with very large files. The following example demonstrates how to attach a file stream to a request.

[!TIP]

Depending on your JavaScript runtime, there are convenient utilities that return a handle to a file without reading the entire contents into memory:

  • Node.js v20+: Since v20, Node.js comes with a native openAsBlob function in node:fs.
  • Bun: The native Bun.file function produces a file handle that can be used for streaming file uploads.
  • Browsers: All supported browsers return an instance to a File when reading the value from an <input type="file"> element.
  • Node.js v18: A file stream can be created using the fileFrom helper from fetch-blob/from.js.
import { SDK } from "@destinedai/voice";
import { openAsBlob } from "node:fs";

const sdk = new SDK({
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  const result = await sdk.datasets.uploadDatasetV1DatasetsPost({
    file: await openAsBlob("example.file"),
    name: "<value>",
  });

  console.log(result);
}

run();

Retries

Some of the endpoints in this SDK support retries. If you use the SDK without any configuration, it will fall back to the default retry strategy provided by the API. However, the default retry strategy can be overridden on a per-operation basis, or across the entire SDK.

To change the default retry strategy for a single API call, simply provide a retryConfig object to the call:

import { SDK } from "@destinedai/voice";

const sdk = new SDK({
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  const result = await sdk.health.healthCheckHealthGet({
    retries: {
      strategy: "backoff",
      backoff: {
        initialInterval: 1,
        maxInterval: 50,
        exponent: 1.1,
        maxElapsedTime: 100,
      },
      retryConnectionErrors: false,
    },
  });

  console.log(result);
}

run();

If you'd like to override the default retry strategy for all operations that support retries, you can provide a retryConfig at SDK initialization:

import { SDK } from "@destinedai/voice";

const sdk = new SDK({
  retryConfig: {
    strategy: "backoff",
    backoff: {
      initialInterval: 1,
      maxInterval: 50,
      exponent: 1.1,
      maxElapsedTime: 100,
    },
    retryConnectionErrors: false,
  },
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  const result = await sdk.health.healthCheckHealthGet();

  console.log(result);
}

run();

Error Handling

SDKError is the base class for all HTTP error responses. It has the following properties:

| Property | Type | Description | | ------------------- | ---------- | --------------------------------------------------------------------------------------- | | error.message | string | Error message | | error.statusCode | number | HTTP response status code eg 404 | | error.headers | Headers | HTTP response headers | | error.body | string | HTTP body. Can be empty string if no body is returned. | | error.rawResponse | Response | Raw HTTP response | | error.data$ | | Optional. Some errors may contain structured data. See Error Classes. |

Example

import { SDK } from "@destinedai/voice";
import * as errors from "@destinedai/voice/models/errors";

const sdk = new SDK({
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  try {
    const result = await sdk.speakers.listSpeakersV1SpeakersGet({});

    console.log(result);
  } catch (error) {
    // The base class for HTTP error responses
    if (error instanceof errors.SDKError) {
      console.log(error.message);
      console.log(error.statusCode);
      console.log(error.body);
      console.log(error.headers);

      // Depending on the method different errors may be thrown
      if (error instanceof errors.HTTPValidationError) {
        console.log(error.data$.detail); // ValidationError[]
      }
    }
  }
}

run();

Error Classes

Primary errors:

Network errors:

Inherit from SDKError:

  • ResponseValidationError: Type mismatch between the data returned from the server and the structure expected by the SDK. See error.rawValue for the raw value and error.pretty() for a nicely formatted multi-line string.

* Check the method documentation to see if the error is applicable.

Server Selection

Select Server by Index

You can override the default server globally by passing a server index to the serverIdx: number optional parameter when initializing the SDK client instance. The selected server will then be used as the default on the operations that use it. This table lists the indexes associated with the available servers:

| # | Server | Description | | --- | ------------------------- | ----------------- | | 0 | https://api.destined.ai | Production | | 1 | http://localhost:8000 | Local Development |

Example

import { SDK } from "@destinedai/voice";

const sdk = new SDK({
  serverIdx: 0,
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  const result = await sdk.health.healthCheckHealthGet();

  console.log(result);
}

run();

Override Server URL Per-Client

The default server can also be overridden globally by passing a URL to the serverURL: string optional parameter when initializing the SDK client instance. For example:

import { SDK } from "@destinedai/voice";

const sdk = new SDK({
  serverURL: "http://localhost:8000",
  httpBearer: "<YOUR_BEARER_TOKEN_HERE>",
});

async function run() {
  const result = await sdk.health.healthCheckHealthGet();

  console.log(result);
}

run();

Custom HTTP Client

The TypeScript SDK makes API calls using an HTTPClient that wraps the native Fetch API. This client is a thin wrapper around fetch and provides the ability to attach hooks around the request lifecycle that can be used to modify the request or handle errors and response.

The HTTPClient constructor takes an optional fetcher argument that can be used to integrate a third-party HTTP client or when writing tests to mock out the HTTP client and feed in fixtures.

The following example shows how to use the "beforeRequest" hook to to add a custom header and a timeout to requests and how to use the "requestError" hook to log errors:

import { SDK } from "@destinedai/voice";
import { HTTPClient } from "@destinedai/voice/lib/http";

const httpClient = new HTTPClient({
  // fetcher takes a function that has the same signature as native `fetch`.
  fetcher: (request) => {
    return fetch(request);
  }
});

httpClient.addHook("beforeRequest", (request) => {
  const nextRequest = new Request(request, {
    signal: request.signal || AbortSignal.timeout(5000)
  });

  nextRequest.headers.set("x-custom-header", "custom value");

  return nextRequest;
});

httpClient.addHook("requestError", (error, request) => {
  console.group("Request Error");
  console.log("Reason:", `${error}`);
  console.log("Endpoint:", `${request.method} ${request.url}`);
  console.groupEnd();
});

const sdk = new SDK({ httpClient: httpClient });

Debugging

You can setup your SDK to emit debug logs for SDK requests and responses.

You can pass a logger that matches console's interface as an SDK option.

[!WARNING] Beware that debug logging will reveal secrets, like API tokens in headers, in log messages printed to a console or files. It's recommended to use this feature only during local development and not in production.

import { SDK } from "@destinedai/voice";

const sdk = new SDK({ debugLogger: console });

Development

Maturity

This SDK is in beta, and there may be breaking changes between versions without a major version update. Therefore, we recommend pinning usage to a specific package version. This way, you can install the same version each time without breaking changes unless you are intentionally looking for the latest version.

Contributions

While we value open-source contributions to this SDK, this library is generated programmatically. Any manual changes added to internal files will be overwritten on the next generation. We look forward to hearing your feedback. Feel free to open a PR or an issue with a proof of concept and we'll do our best to include it in a future release.

SDK Created by Speakeasy