# How to integrate Fal.ai MCP with Grok Build ```json { "title": "How to integrate Fal.ai MCP with Grok Build", "toolkit": "Fal.ai", "toolkit_slug": "fal_ai", "framework": "Grok Build", "framework_slug": "grok-build", "url": "https://composio.dev/toolkits/fal_ai/framework/grok-build", "markdown_url": "https://composio.dev/toolkits/fal_ai/framework/grok-build.md", "updated_at": "2026-03-29T06:33:16.683Z" } ``` ## Introduction ### How to integrate Fal.ai MCP with Grok Build [Grok Build](https://docs.x.ai/build/overview) is xAI's terminal coding agent. It runs on Grok 4.5, plans its work before it acts, and can run multiple sub-agents in parallel. It also reads Claude Code's MCP configuration, so any server you already have in a .mcp.json is picked up with no changes. In this guide, I will show you how to connect your Fal.ai account to Grok Build through Composio, so it can generate a photorealistic portrait of a cat, create a 15-second AI-generated promo video, synthesize an audio clip saying 'Welcome home!', and more without leaving the terminal. Composio holds the OAuth tokens for you, and Grok Build only calls the tools you approve. ## Also integrate Fal.ai with - [ChatGPT Work](https://composio.dev/toolkits/fal_ai/framework/chatgpt) - [Antigravity](https://composio.dev/toolkits/fal_ai/framework/antigravity) - [OpenAI Agents SDK](https://composio.dev/toolkits/fal_ai/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/fal_ai/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/fal_ai/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/fal_ai/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/fal_ai/framework/codex) - [Cursor](https://composio.dev/toolkits/fal_ai/framework/cursor) - [VS Code](https://composio.dev/toolkits/fal_ai/framework/vscode) - [OpenCode](https://composio.dev/toolkits/fal_ai/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/fal_ai/framework/openclaw) - [Hermes](https://composio.dev/toolkits/fal_ai/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/fal_ai/framework/cli) - [Google ADK](https://composio.dev/toolkits/fal_ai/framework/google-adk) - [LangChain](https://composio.dev/toolkits/fal_ai/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/fal_ai/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/fal_ai/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/fal_ai/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/fal_ai/framework/crew-ai) ## TL;DR ### Why use Composio over a standalone MCP server? - Read and write access. Composio's Fal.ai integration lets Grok Build take real actions like creating drafts, sending updates, and labeling records, not just reading data. - 1,000+ SaaS toolkits out of the box. One endpoint gives you a full catalog of pre-built connectors, from Gmail and Slack to Notion, Linear, and Salesforce. - One MCP server for every app. Wire up a single Composio server instead of maintaining a separate MCP entry for each app. - Smart, context-aware tool loading. Grok Build caps how many tools it holds in a single request. Composio loads only the tools a task needs, so you do not spend that budget on tools you are not using. - Cross-app automation. Chain actions across apps in one run. Pull a thread, summarize it in Notion, and post the highlights to Slack from a single prompt. ## Connect Fal.ai to Grok Build ### Prerequisites - Grok Build installed and signed in. Install with curl -fsSL https://x.ai/cli/install.sh | bash on macOS or Linux, or irm https://x.ai/cli/install.ps1 | iex on Windows PowerShell. On first launch Grok opens a browser to authenticate; for headless or CI use, set an XAI_API_KEY environment variable instead (create the key at [console.x.ai](https://console.x.ai/)). - Access to the Fal.ai account you want to connect. - The [Composio MCP endpoint](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=grok-build&utm_content=composio_connect). Composio's server is remote and hosted, so there is nothing to run locally and no tunnel to set up. ### Step-by-step: Connect Fal.ai to Grok Build ### 1. Install and verify Grok Build Install the CLI, then restart your shell so the grok binary lands on your PATH: ```bash curl -fsSL https://x.ai/cli/install.sh | bash which grok ``` ## What is the Fal.ai MCP server, and what's possible with it? The Fal.ai MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Fal.ai account. It provides structured and secure access so your agent can perform Fal.ai operations on your behalf. ## Supported Tools | Tool slug | Name | Description | |---|---|---| | `FAL_AI_CANCEL_QUEUE_REQUEST` | Cancel Queue Request | Tool to cancel a queued or in-progress request in fal.ai's queue system. Use when you need to stop a request before it completes. Note that cancellation only succeeds if the request hasn't started processing; if already completed, returns an error status. Even with successful cancellation, the request may still execute if it was near the front of the queue. | | `FAL_AI_ESTIMATE_PRICING` | Estimate Pricing | Tool to estimate pricing for fal.ai model endpoints. Use when you need to calculate expected costs for API calls or unit-based usage across one or more endpoints. | | `FAL_AI_GET_JWKS` | Get JWKS for Webhook Verification | Tool to retrieve public keys for webhook signature verification. Returns a JSON Web Key Set containing ED25519 public keys. Use when you need to verify webhook signatures from fal.ai. The keys are cacheable but should be refreshed at least every 24 hours. | | `FAL_AI_GET_MODELS` | Get Models | Tool to discover and search fal.ai model endpoints. Use when you need to list all models, find specific models by ID, or search by category/query. Supports pagination and optional expansion of OpenAPI schemas. | | `FAL_AI_GET_MODEL_PRICING` | Get Model Pricing | Tool to retrieve unit pricing for model endpoints. Returns pricing information including unit price, billing unit, and currency. Use when you need to check costs for specific fal.ai models. | | `FAL_AI_GET_QUEUE_REQUEST_RESULT` | Get Queue Request Result | Tool to retrieve the final result of a completed queue request. Use when you need to get the output of a model request that was submitted to the queue and has finished processing. Only works after request status transitions to COMPLETED. | | `FAL_AI_GET_QUEUE_REQUEST_STATUS_WITH_LOGS` | Get Queue Request Status With Logs | Tool to retrieve the current status of a queued request with detailed logging information. Use when you need to monitor a queued request's progress and access execution logs for debugging or tracking purposes. Logs include timestamps, severity levels, and detailed messages about request processing. | | `FAL_AI_CHECK_QUEUE_REQUEST_STATUS` | Check Queue Request Status | Tool to check the status of a queued request in fal.ai. Use when you need to monitor the progress of an async request. Returns different information based on status: queue position when IN_QUEUE, logs when IN_PROGRESS or COMPLETED. | | `FAL_AI_STREAM_REQUEST_STATUS_UPDATES` | Stream Request Status Updates | Tool to stream request status updates via SSE. Use when you need real-time updates on a queued request's processing state. | ## Supported Triggers None listed. ## Creating MCP Server - Stand-alone vs Composio SDK Once connected, Grok Build can access the Fal.ai MCP server via Composio to run the app actions you authorize, directly from your terminal. ## Complete Code None listed. ## How to build Fal.ai MCP Agent with another framework - [ChatGPT Work](https://composio.dev/toolkits/fal_ai/framework/chatgpt) - [Antigravity](https://composio.dev/toolkits/fal_ai/framework/antigravity) - [OpenAI Agents SDK](https://composio.dev/toolkits/fal_ai/framework/open-ai-agents-sdk) - [Claude Agent SDK](https://composio.dev/toolkits/fal_ai/framework/claude-agents-sdk) - [Claude Code](https://composio.dev/toolkits/fal_ai/framework/claude-code) - [Claude Cowork](https://composio.dev/toolkits/fal_ai/framework/claude-cowork) - [Codex](https://composio.dev/toolkits/fal_ai/framework/codex) - [Cursor](https://composio.dev/toolkits/fal_ai/framework/cursor) - [VS Code](https://composio.dev/toolkits/fal_ai/framework/vscode) - [OpenCode](https://composio.dev/toolkits/fal_ai/framework/opencode) - [OpenClaw](https://composio.dev/toolkits/fal_ai/framework/openclaw) - [Hermes](https://composio.dev/toolkits/fal_ai/framework/hermes-agent) - [CLI](https://composio.dev/toolkits/fal_ai/framework/cli) - [Google ADK](https://composio.dev/toolkits/fal_ai/framework/google-adk) - [LangChain](https://composio.dev/toolkits/fal_ai/framework/langchain) - [Vercel AI SDK](https://composio.dev/toolkits/fal_ai/framework/ai-sdk) - [Mastra AI](https://composio.dev/toolkits/fal_ai/framework/mastra-ai) - [LlamaIndex](https://composio.dev/toolkits/fal_ai/framework/llama-index) - [CrewAI](https://composio.dev/toolkits/fal_ai/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. - [Youtube](https://composio.dev/toolkits/youtube) - YouTube is a leading video-sharing platform for uploading, streaming, and discovering content. It empowers creators and businesses to reach global audiences and monetize their work. - [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. - [Figma](https://composio.dev/toolkits/figma) - Figma is a collaborative interface design tool for teams and individuals. It streamlines design workflows with real-time collaboration and easy sharing. - [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. - [Abyssale](https://composio.dev/toolkits/abyssale) - Abyssale is a creative automation platform for generating images, videos, GIFs, PDFs, and HTML5 content programmatically. It streamlines and scales visual content production for marketing, design, and operations teams. - [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. - [Alttext ai](https://composio.dev/toolkits/alttext_ai) - AltText.ai is a service that generates alt text for images automatically. It helps boost accessibility and SEO for your visual content. - [Amara](https://composio.dev/toolkits/amara) - Amara is a collaborative platform for creating and managing subtitles and captions for videos. It helps make content accessible and multilingual for global audiences. - [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. - [Bannerbear](https://composio.dev/toolkits/bannerbear) - Bannerbear is an API-driven platform for generating images and videos automatically at scale. It helps businesses create custom graphics, social visuals, and marketing assets using powerful templates. - [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. ## Frequently Asked Questions ### What is the difference between the Composio Tool Router and a standalone Fal.ai MCP server? A standalone Fal.ai MCP server gives Grok Build a fixed set of Fal.ai tools tied to that one server. The Composio Tool Router lets Grok Build load tools from Fal.ai and many other apps on demand, based on the task, all through a single endpoint. ### Does Grok Build support MCP? Yes. Grok Build ships with native MCP support. Add a server with the grok mcp add command, from the in-session /mcps modal, or by editing ~/.grok/config.toml. It also reads Claude Code-style .mcp.json files, so Grok Build discovers the tools automatically. ### Can I reuse the same MCP config I already use with Claude Code? Yes. Grok Build has zero-migration compatibility with Claude Code's configuration, so the same Composio server entry works in both without edits. ### How safe is my Fal.ai data with Composio? Tokens, keys, and configuration are encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant, so your Fal.ai data and credentials are handled to that standard. --- [See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)