# How to integrate Lmnt MCP with Codex ```json { "title": "How to integrate Lmnt MCP with Codex", "toolkit": "Lmnt", "toolkit_slug": "lmnt", "framework": "Codex", "framework_slug": "codex", "url": "https://composio.dev/toolkits/lmnt/framework/codex", "markdown_url": "https://composio.dev/toolkits/lmnt/framework/codex.md", "updated_at": "2026-05-12T10:17:52.927Z" } ``` ## Introduction Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Lmnt MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer. ## Also integrate Lmnt with - [OpenAI Agents SDK](https://composio.dev/toolkits/lmnt/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/lmnt/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/lmnt/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/lmnt/framework/claude-cowork) - [OpenClaw](https://composio.dev/toolkits/lmnt/framework/openclaw) - [Hermes](https://composio.dev/toolkits/lmnt/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/lmnt/framework/cli) - [Google ADK](https://composio.dev/toolkits/lmnt/framework/google-adk) - [LangChain](https://composio.dev/toolkits/lmnt/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/lmnt/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/lmnt/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/lmnt/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/lmnt/framework/crew-ai) ## TL;DR ### Why use Composio? Apart from a managed and hosted MCP server, you will get: - CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling. - Large tool responses: Handle them to minimise context rot. - Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need. ## Connect Lmnt to Codex ### How to install Lmnt MCP in Codex ### Run the setup command Run this command in your terminal to add the Composio MCP server to Codex. ```bash codex mcp add composio --url https://connect.composio.dev/mcp ``` ## What is the Lmnt MCP server, and what's possible with it? The Lmnt MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Lmnt account. It provides structured and secure access to your voice and audio management features, so your agent can perform actions like creating voices, synthesizing speech, retrieving or updating voice profiles, and managing your audio assets on your behalf. - Custom voice creation and management: Direct your agent to create new voice profiles or update existing ones for use in voice synthesis and transformation. - Real-time speech synthesis: Instantly generate lifelike speech from text using your selected voice models for creative or technical projects. - Voice library retrieval: Have your agent fetch and list all available voices in your Lmnt account, making it easy to explore or switch between options. - Voice info review and deletion: Pull detailed information about any voice profile or let your agent remove unused voices to keep your workspace organized. - Account insights and status checks: Allow your agent to retrieve your Lmnt account details, ensuring smooth integration and monitoring of usage or settings. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `LMNT_CREATE_VOICE` | Create Voice | Creates a custom voice in LMNT by training on uploaded audio samples. The voice can then be used for text-to-speech synthesis. Returns the voice ID and metadata upon successful creation. The voice may be in 'training' state initially before becoming 'ready'. | | `LMNT_DELETE_VOICE_INFO` | Delete Voice Info | Deletes a voice from your LMNT account. This operation permanently removes the voice and cancels any pending operations on it. This action cannot be undone. Only voices owned by you (owner='me') can be deleted; system voices cannot be deleted. Use case: Remove custom voices that are no longer needed to manage your voice library. | | `LMNT_GENERATE_SPEECH_WITH_METADATA` | Generate Speech With Metadata | Generates speech from text and returns JSON with base64-encoded audio and optional word-level timing metadata. Use when you need the synthesis seed or word timestamps for subtitle synchronization. For lower latency without metadata, use the Synthesize Speech action instead. | | `LMNT_GET_ACCOUNT` | Get Account | Retrieves account information including subscription plan details and current usage statistics. | | `LMNT_GET_VOICE_INFO` | Get Voice Info | Gets metadata for a specific LMNT voice, including active status, supported languages, and plan availability. Useful for validating a voice ID before using it in synthesis requests. | | `LMNT_GET_VOICES_LIST` | Get Voices List | Retrieves a list of available voices from LMNT. Returns both system-provided preset voices and any custom voices you have created. Use filters to narrow results by ownership (system vs custom) or starred status. Each voice includes details like ID, name, description, gender, state, and preview URL. | | `LMNT_SYNTHESIZE_SPEECH` | Synthesize Speech | Synthesizes speech from text using LMNT's AI voices. Converts text (up to 5000 characters) into natural-sounding speech audio using a specified voice. Returns base64-encoded audio at `data.response_data.audio` — decode before saving or passing to other tools. Supports multiple audio formats and quality settings for different use cases. | | `LMNT_UPDATE_VOICE` | Update Voice Info | Updates information about a specific voice in LMNT. You can update the name, description, gender, starred status, and unfreeze state of a voice. Note: Only user-owned voices (owner='me') can have their name, description, and gender updated. System voices can only be starred/unstarred. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK The Lmnt MCP server provides comprehensive access to Lmnt operations through Composio. Once connected, you can perform all major Lmnt actions directly from Codex using natural language commands. ## Complete Code None listed. ## Conclusion ### Conclusion You've successfully integrated Lmnt with Codex using Composio's MCP server. Now you can interact with Lmnt directly from your terminal, VS Code, or the Codex App using natural language commands. Key benefits of this setup: - Seamless integration across CLI, VS Code, and standalone app - Natural language commands for Lmnt operations - Managed authentication through Composio - Access to 20,000+ tools across 1000+ apps for cross-app workflows - CodeAct workbench for complex tool chaining Next steps: - Try asking Codex to perform various Lmnt operations - Explore cross-app workflows by connecting more toolkits - Build automation scripts that leverage Codex's AI capabilities ## How to build Lmnt MCP Agent with another framework - [OpenAI Agents SDK](https://composio.dev/toolkits/lmnt/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/lmnt/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/lmnt/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/lmnt/framework/claude-cowork) - [OpenClaw](https://composio.dev/toolkits/lmnt/framework/openclaw) - [Hermes](https://composio.dev/toolkits/lmnt/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/lmnt/framework/cli) - [Google ADK](https://composio.dev/toolkits/lmnt/framework/google-adk) - [LangChain](https://composio.dev/toolkits/lmnt/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/lmnt/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/lmnt/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/lmnt/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/lmnt/framework/crew-ai) ## 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. - [Composio search](https://composio.dev/toolkits/composio_search) - Composio search is a unified web search toolkit spanning travel, e-commerce, news, financial markets, images, and more. It lets you and your apps tap into up-to-date web data from a single, easy-to-integrate service. - [Perplexityai](https://composio.dev/toolkits/perplexityai) - Perplexityai delivers natural, conversational AI models for generating human-like text. Instantly get context-aware, high-quality responses for chat, search, or complex workflows. - [Browser tool](https://composio.dev/toolkits/browser_tool) - Browser tool is a virtual browser integration that lets AI agents interact with the web programmatically. It enables automated browsing, scraping, and action-taking from any AI workflow. - [Ai ml api](https://composio.dev/toolkits/ai_ml_api) - Ai ml api is a suite of AI/ML models for natural language and image tasks. It provides fast, scalable access to advanced AI capabilities for your apps and workflows. - [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. - [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. - [Api labz](https://composio.dev/toolkits/api_labz) - Api labz is a platform offering a suite of AI-driven APIs and workflow tools. It helps developers automate tasks and build smarter, more efficient applications. - [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. - [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. - [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. - [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. - [Botpress](https://composio.dev/toolkits/botpress) - Botpress is an open-source platform for building, deploying, and managing chatbots. It helps teams automate conversations and deliver rich, interactive messaging experiences. - [Chatbotkit](https://composio.dev/toolkits/chatbotkit) - Chatbotkit is a platform for building and managing AI-powered chatbots using robust APIs and SDKs. It lets you easily add conversational AI to your apps for better user engagement. - [Cody](https://composio.dev/toolkits/cody) - Cody is an AI assistant built for businesses, trained on your company's knowledge and data. It delivers instant answers and insights, tailored for your team. - [Context7 MCP](https://composio.dev/toolkits/context7_mcp) - Context7 MCP delivers live, version-specific code docs and examples right from the source. It helps developers and AI agents instantly retrieve authoritative programming info—no more out-of-date docs. - [Customgpt](https://composio.dev/toolkits/customgpt) - CustomGPT.ai lets you build and deploy chatbots tailored to your own data and business needs. Get precise and context-aware AI conversations without writing code. - [Datarobot](https://composio.dev/toolkits/datarobot) - Datarobot is a machine learning platform that automates model development, deployment, and monitoring. It empowers organizations to quickly gain predictive insights from large datasets. - [Deepgram](https://composio.dev/toolkits/deepgram) - Deepgram is an AI-powered speech recognition platform for accurate audio transcription and understanding. It enables fast, scalable speech-to-text with advanced audio intelligence features. ## Frequently Asked Questions ### What are the differences in Tool Router MCP and Lmnt MCP? With a standalone Lmnt MCP server, the agents and LLMs can only access a fixed set of Lmnt tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Lmnt and many other apps based on the task at hand, all through a single MCP endpoint. ### Can I use Tool Router MCP with Codex? Yes, you can. Codex fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Lmnt tools. ### Can I manage the permissions and scopes for Lmnt while using Tool Router? Yes, absolutely. You can configure which Lmnt scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do. ### How safe is my data with Composio Tool Router? All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Lmnt data and credentials are handled as safely as possible. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)