Gradium MCP for AI Agents

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.

Gradium logoGradium
Api Key

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.

9 Tools

Try Gradium now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Gradium
Try asking
TOOLS

Supported Tools

Every Gradium action and event your agent gets out of the box.

Create Pronunciation Dictionary

Create a language-specific pronunciation dictionary with optional rewrite rules.

Delete Pronunciation Dictionary

Permanently delete one pronunciation dictionary by UID.

Get Credits

Get the connected Gradium subscription's current credit balance and billing-period metadata.

Get Pronunciation Dictionary

Retrieve one pronunciation dictionary and its complete rewrite rule set by UID.

Get Usage Summary

Retrieve aggregate Gradium session, message, text, audio-duration, and consumed-credit usage totals.

Get Voice

Retrieve metadata for one Gradium catalog or custom voice by its UID.

List Pronunciation Dictionaries

List pronunciation dictionaries for the connected organization, optionally filtered by language.

List Voices

List custom voices and, by default, Gradium's public voice catalog, returning voice IDs and metadata for later selection.

Update Pronunciation Dictionary

Update pronunciation dictionary metadata and optionally replace its complete rewrite rule set.

SETUP GUIDE

Connect Gradium MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK for Python or TypeScript
2

Initialize Client and Create Tool Router Session

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}`);
Import and initialize the Composio client, then create a Tool Router session for Gradium
3

Connect to AI Agent

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}`);
Use the MCP server with your AI agent (Anthropic Claude or Mastra)
SETUP GUIDE

Connect Gradium API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

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');
Import and initialize Composio client, then create a Tool Router session
3

Execute Gradium Tools via Tool Router with Your Agent

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);
Get tools from Tool Router session and execute Gradium actions with your Agent

Why Use Composio?

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

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

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

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
FAQ

Frequently asked questions

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

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Composio is SOC 2 and ISO 27001 compliant with all data encrypted in transit and at rest. Learn more.

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

Start with Gradium.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Gradium tool your agent needs.Free to start.

Start building