How to integrate Mistral ai MCP with Grok Build

Connect Grok Build to Mistral ai MCP. Summarize this research paper in simple terms, generate python code for sorting a list, and more from your terminal, with authentication handled for you.

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Mistral ai is a research lab offering cutting-edge open-source language models and developer APIs. It empowers teams to add state-of-the-art natural language capabilities to any app or workflow.

54 Tools

How to integrate Mistral ai MCP with Grok Build

Grok Build 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 Mistral ai account to Grok Build through Composio, so it can summarize this research paper in simple terms, generate Python code for sorting a list, explain the difference between AI and ML, and more without leaving the terminal. Composio holds the OAuth tokens for you, and Grok Build only calls the tools you approve.

Also integrate Mistral ai with

Why use Composio over a standalone MCP server?

  • Read and write access. Composio's Mistral 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.

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).
  • Access to the Mistral ai account you want to connect.
  • The Composio MCP endpoint. Composio's server is remote and hosted, so there is nothing to run locally and no tunnel to set up.

Step-by-step: Connect Mistral 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

On Windows, install with PowerShell instead: irm https://x.ai/cli/install.ps1 | iex. If which grok returns a path, you are set. Grok Build runs on Grok 4.5 by default; you can switch models inside the session with /model <name>.

2. Add the Composio server

Add Composio as a remote HTTP MCP server with the grok mcp add command:

bash
grok mcp add --transport http composio https://connect.composio.dev/mcp

You can also add and manage servers from inside a session. Run /mcps to open the extensions modal on the MCP tab, then add a new server and paste the Composio URL. Added this way, Grok auto-detects the name from the URL and lists the server as connect:

bash
https://connect.composio.dev/mcp
Grok Build /mcps extensions modal listing MCP servers Grok Build adding the Composio MCP server with its URL

Grok also reads Claude Code-style config, so an entry in ~/.grok/config.toml or a project .mcp.json works the same way.

3. Authenticate

Composio uses OAuth. In the /mcps modal, select the Composio server and press i to authenticate (Grok also triggers this browser flow automatically the first time it uses a Composio tool). Click Allow to authorize access. Grok stores the tokens under ~/.grok/mcp_credentials.json, and /mcps shows Composio as connected.

Grok Build prompting to authenticate the Composio MCP server Composio authorization screen with the Allow button for Grok Build

4. Start building

Ask Grok to work with your Mistral ai account through Composio. On the first Mistral ai action, Composio prompts you to connect the account through OAuth. Approve the scopes once, and Composio handles token refresh from there.

What you can do after connecting Mistral ai

  • Summarize this research paper in simple terms
  • Generate Python code for sorting a list
  • Explain the difference between AI and ML
  • Draft a professional email response for me

Security + privacy notes (important)

  • Use least-privilege access. Grant only the Mistral ai scopes you actually need.
  • Review OAuth scopes before approving. Check that the requested scopes match what you expect Composio and Grok Build to do.
  • Keep write actions human-reviewed. Grok Build proposes a plan before it acts. Leave that approval step on for actions like sending messages or editing records.
  • Keep secrets out of version control. Your XAI_API_KEY and any tokens should never be committed. Use environment variables or a secrets manager.
TOOLS

Supported Tools

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

Append to conversation

Tool to append new entries to an existing conversation in Mistral AI.

Create Agent

Tool to create a new AI agent with custom configuration (Beta).

Create Agents Completion

Tool to generate completions using a Mistral AI agent with specific instructions and tools.

Create Audio Transcription

Transcribe audio files to text using Mistral AI's Voxtral models.

Create Chat Completion

Generate conversational responses from Mistral AI models.

Create Chat Moderation

Tool to classify chat content for moderation purposes across 9 categories.

Create Embeddings

Tool to generate vector embeddings for input text using Mistral AI embedding models.

Create FIM Completion

Generate code completions using fill-in-the-middle functionality.

Create library

Tool to create a new document library.

Create library share

Create or update sharing permissions for a library.

Create Moderation

Tool to classify text content for moderation purposes across 9 categories.

Create OCR

Extract text and structured data from images and documents using Mistral AI's OCR capabilities.

Create or Update Agent Alias

Tool to create or update an agent version alias.

Delete agent

Permanently deletes an agent by its ID (Beta feature).

Delete Conversation

Tool to delete a conversation by its ID (Beta).

Delete File

Delete a file by its ID from Mistral AI.

Delete library

Permanently deletes a library and all of its documents from Mistral AI.

Delete library document

Permanently deletes a document from a Mistral AI library.

Delete library share

Remove sharing permissions for a library from a user, workspace, or organization.

Download File

Download the content of a previously uploaded file from Mistral AI.

Get Agent

Tool to retrieve details of a specific Mistral AI agent by its ID.

Get Agent Version

Retrieve a specific version of an agent (Beta).

Get Conversation

Tool to retrieve details of a specific conversation.

Get Conversation History

Retrieve the full history of a conversation in Mistral AI.

Get Conversation Messages

Retrieve all messages from a Mistral AI conversation.

Get document extracted text URL

Retrieve a signed URL to download the extracted text from a document in a Mistral AI library.

Get document signed URL

Get a signed URL to download a document from a Mistral AI library.

Get Document Status

Retrieve the processing status of a document in a Mistral AI library.

Get Document Text Content

Retrieve the extracted text content of a specific document from a Mistral AI library (Beta).

Get File Signed URL

Get a time-limited signed URL for downloading a file from Mistral AI.

List Fine Tuning Jobs

List fine-tuning jobs with optional filtering and pagination.

Get library

Retrieve detailed information about a specific library.

Get Library Document

Retrieve metadata for a specific document in a Mistral AI library.

Get Model

Tool to retrieve detailed information about a specific Mistral AI model by its ID.

List agent aliases

Retrieve all aliases for an agent version.

List Agents

Tool to list all configured agents (Beta).

List Agent Versions

List all versions of a specific agent.

List Batch Jobs

Tool to retrieve a list of all batch jobs with optional filtering and pagination.

List Conversations

List all created conversations (Beta).

List Files

Tool to list all files available to the user.

List libraries

List all document libraries accessible to your organization.

List Library Documents

List all documents in a Mistral AI document library.

List library shares

List all sharing permissions for a document library.

List Models

Tool to retrieve all available Mistral AI models including base models and fine-tuned models.

Reprocess document

Reprocess a document in a Mistral AI library (Beta).

Restart Conversation

Tool to restart a conversation from a specific point (Beta).

Retrieve File

Retrieve metadata of a file uploaded to Mistral AI.

Start Conversation

Tool to start a new conversation with a Mistral AI agent or base model.

Update Agent

Tool to update an existing agent's configuration.

Update agent version

Tool to update the current version of an agent (Beta).

Update library

Tool to update an existing document library's properties.

Update library document

Update the metadata of a document in a Mistral AI library.

Upload File

Upload a file to Mistral AI for use in fine-tuning, batch processing, or OCR.

Upload Library Document

Upload a document to a Mistral AI library for use with RAG-enabled agents.

FAQ

Frequently asked questions

A standalone Mistral ai MCP server gives Grok Build a fixed set of Mistral ai tools tied to that one server. The Composio Tool Router lets Grok Build load tools from Mistral ai and many other apps on demand, based on the task, all through a single endpoint.

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.

Yes. Grok Build has zero-migration compatibility with Claude Code's configuration, so the same Composio server entry works in both without edits.

Tokens, keys, and configuration are encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant, so your Mistral ai data and credentials are handled to that standard.

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