# Gradium

```json
{
  "name": "Gradium",
  "slug": "gradium",
  "url": "https://composio.dev/toolkits/gradium",
  "markdown_url": "https://composio.dev/toolkits/gradium.md",
  "logo_url": "https://logos.composio.dev/api/gradium",
  "categories": [
    "ai & machine learning"
  ],
  "is_composio_managed": false,
  "updated_at": "2026-08-20T15:32:10.933Z"
}
```

![Gradium logo](https://logos.composio.dev/api/gradium)

## Description

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Gradium MCP or direct API to generate speech, transcribe audio, manage voices, and refine pronunciations through natural language.

## Summary

Gradium is a low-latency voice AI platform for speech generation, transcription, voice management, and pronunciation tools.
Use it to build real-time voice apps with fast, natural audio workflows.

## Categories

- ai & machine learning

## Toolkit Details

- Tools: 9

## Images

- Logo: https://logos.composio.dev/api/gradium

## Authentication

- **Api Key**
  - Type: `api_key`
  - Description: Api Key authentication for Gradium.
  - Setup:
    - Configure Api Key credentials for Gradium.
    - Use the credentials when creating an auth config in Composio.

## Suggested Prompts

- Generate speech for onboarding welcome script
- Transcribe customer call with speaker labels
- Create pronunciation guide for product names

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `GRADIUM_CREATE_PRONUNCIATION_DICTIONARY` | Create Pronunciation Dictionary | Create a language-specific pronunciation dictionary with optional rewrite rules. |
| `GRADIUM_DELETE_PRONUNCIATION_DICTIONARY` | Delete Pronunciation Dictionary | Permanently delete one pronunciation dictionary by UID. |
| `GRADIUM_GET_CREDITS` | Get Credits | Get the connected Gradium subscription's current credit balance and billing-period metadata. |
| `GRADIUM_GET_PRONUNCIATION_DICTIONARY` | Get Pronunciation Dictionary | Retrieve one pronunciation dictionary and its complete rewrite rule set by UID. |
| `GRADIUM_GET_USAGE_SUMMARY` | Get Usage Summary | Retrieve aggregate Gradium session, message, text, audio-duration, and consumed-credit usage totals. |
| `GRADIUM_GET_VOICE` | Get Voice | Retrieve metadata for one Gradium catalog or custom voice by its UID. |
| `GRADIUM_LIST_PRONUNCIATION_DICTIONARIES` | List Pronunciation Dictionaries | List pronunciation dictionaries for the connected organization, optionally filtered by language. |
| `GRADIUM_LIST_VOICES` | List Voices | List custom voices and, by default, Gradium's public voice catalog, returning voice IDs and metadata for later selection. |
| `GRADIUM_UPDATE_PRONUNCIATION_DICTIONARY` | Update Pronunciation Dictionary | Update pronunciation dictionary metadata and optionally replace its complete rewrite rule set. |

## Supported Triggers

None listed.

## Installation and MCP Setup

### Path 1: SDK Installation

#### Path 1, Step 1: Install Composio

Install the Composio SDK
```python
pip install composio_openai
```

```typescript
npm install @composio/openai
```

#### Path 1, Step 2: Initialize Composio and Create Tool Router Session

Import and initialize Composio client, then create a Tool Router session
```python
from openai import OpenAI
from composio import Composio
from composio_openai import OpenAIResponsesProvider

composio = Composio(provider=OpenAIResponsesProvider())
openai = OpenAI()
session = composio.create(user_id='your-user-id')
```

```typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
```

#### Path 1, Step 3: Execute Gradium Tools via Tool Router with Your Agent

Get tools from Tool Router session and execute Gradium actions with your Agent
```python
tools = session.tools
response = openai.responses.create(
  model='gpt-4.1',
  tools=tools,
  input=[{
    'role': 'user',
    'content': 'Generate low-latency speech from this welcome script'
  }]
)
result = composio.provider.handle_tool_calls(
  response=response,
  user_id='your-user-id'
)
print(result)
```

```typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'Generate low-latency speech from this welcome script'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
```

### Path 2: MCP Server Setup

#### Path 2, Step 1: Install Composio

Install the Composio SDK for Python or TypeScript
```python
pip install composio claude-agent-sdk
```

```typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
```

#### Path 2, Step 2: Initialize Client and Create Tool Router Session

Import and initialize the Composio client, then create a Tool Router session for Gradium
```python
from composio import Composio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

composio = Composio(api_key='your-composio-api-key')
session = composio.create(user_id='your-user-id')
url = session.mcp.url
```

```typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
```

#### Path 2, Step 3: Connect to AI Agent

Use the MCP server with your AI agent (Anthropic Claude or Mastra)
```python
import asyncio

options = ClaudeAgentOptions(
    permission_mode='bypassPermissions',
    mcp_servers={
        'tool_router': {
            'type': 'http',
            'url': url,
            'headers': {
                'x-api-key': 'your-composio-api-key'
            }
        }
    },
    system_prompt='You are a helpful assistant with access to Gradium tools.',
    max_turns=10
)

async def main():
    async with ClaudeSDKClient(options=options) as client:
        await client.query('Transcribe this support call recording with speaker labels')
        async for message in client.receive_response():
            if hasattr(message, 'content'):
                for block in message.content:
                    if hasattr(block, 'text'):
                        print(block.text)

asyncio.run(main())
```

```typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'Transcribe this support call recording with speaker labels'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
```

## Why Use Composio?

### 1. AI Native Gradium Integration

- Supports both Gradium MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable speech, transcription, voice, and pronunciation tasks
- Rich coverage for building real-time voice workflows without writing custom Gradium glue code

### 2. Managed Auth

- Secure API key handling so your agents never need hard-coded Gradium credentials
- Central place to manage, scope, and revoke Gradium access
- Per user and per environment credentials for cleaner, safer voice app deployments

### 3. Agent Optimized Design

- Tools are tuned using real error and success rates to improve reliability over time
- Comprehensive execution logs so you always know which Gradium action ran, when, and on whose behalf
- Clear tool schemas help agents pick the right action for speech generation, transcription, and voice management

### 4. Enterprise Grade Security

- Fine-grained RBAC so you control which agents and users can access Gradium
- Scoped, least privilege access to Gradium resources
- Full audit trail of agent actions to support review and compliance

## Use Gradium with any AI Agent Framework

Choose a framework you want to connect Gradium with:

None listed.

## Related Toolkits

- [Composio](https://composio.dev/toolkits/composio) - Composio is an integration platform that connects AI agents with hundreds of business tools. It streamlines authentication and lets you trigger actions across services—no custom code needed.
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- [Aivoov](https://composio.dev/toolkits/aivoov) - Aivoov is an AI-powered text-to-speech platform offering 1,000+ voices in over 150 languages. Instantly turn written content into natural, human-like audio for any application.
- [All images ai](https://composio.dev/toolkits/all_images_ai) - All-Images.ai is an AI-powered image generation and management platform. It helps you create, search, and organize images effortlessly with advanced AI capabilities.
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- [Anthropic administrator](https://composio.dev/toolkits/anthropic_administrator) - Anthropic administrator is an API for managing Anthropic organizational resources like members, workspaces, and API keys. It helps you automate admin tasks and streamline resource management across your Anthropic organization.
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- [Apipie ai](https://composio.dev/toolkits/apipie_ai) - Apipie ai is an AI model aggregator offering a single API for accessing top AI models from multiple providers. It helps developers build cost-efficient, latency-optimized AI solutions without juggling multiple integrations.
- [Arize AX](https://composio.dev/toolkits/arize_ax) - Arize AX is an AI engineering platform for tracing, evaluating, and improving AI applications. Use it to debug LLM behavior, compare experiments, and improve production AI quality.
- [Artificial Analysis](https://composio.dev/toolkits/artificial_analysis) - Artificial Analysis is an independent benchmarking platform for AI models and API providers. Use it to compare model intelligence, coding, math, pricing, latency, throughput, and arena rankings.
- [AssemblyAI](https://composio.dev/toolkits/assemblyai) - AssemblyAI is a speech-to-text and audio intelligence API for uploaded or hosted media. Use it to turn audio and video into accurate transcripts, summaries, and insights.
- [Astica ai](https://composio.dev/toolkits/astica_ai) - Astica ai provides APIs for computer vision, NLP, and voice synthesis. Integrate advanced AI features into your app with a single API key.
- [Avoma](https://composio.dev/toolkits/avoma) - Avoma is an AI meeting assistant for recording, transcribing, analyzing, and managing meetings, calls, notes, scorecards, and conversation intelligence. It helps teams turn conversations into searchable notes, follow-ups, coaching insights, and revenue intelligence.
- [Bigml](https://composio.dev/toolkits/bigml) - BigML is a machine learning platform that lets you build, train, and deploy predictive models from your data. Its intuitive interface and robust API make machine learning accessible and efficient.
- [Bland AI](https://composio.dev/toolkits/bland_ai) - Bland AI is a conversational AI platform for building voice agents, phone calls, messaging, and communication workflows. Use it to automate calling, evaluate conversations, and run voice operations at scale.
- [Botbaba](https://composio.dev/toolkits/botbaba) - Botbaba is a platform for building, managing, and deploying conversational AI chatbots across messaging channels. It streamlines chatbot automation, making it easier to integrate AI into customer interactions.

## Frequently Asked Questions

### Do I need my own developer credentials to use Gradium with Composio?

Yes, Gradium requires you to configure your own API key. Once set up, Composio handles secure credential storage and API request handling for you.

### Can I use multiple toolkits together?

Yes! Composio's Tool Router enables agents to use multiple toolkits. [Learn more](https://docs.composio.dev/tool-router/overview).

### Is Composio secure?

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. [Learn more](https://trust.composio.dev).

### What if the API changes?

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)