Step-by-step guide to connect Mistral AI to Dataslayer MCP. Learn how to set up le Chat to query your marketing data using natural language, available on the free plan with EU-hosted, privacy-focused infrastructure.
Mistral AI stands out for its privacy-first approach: it's the only provider that offers MCP support on its free plan, with infrastructure hosted in EU data centers under ISO 27001 compliance. This makes it ideal for organizations with strict data residency requirements or teams who want to test MCP without upfront costs.
Requirements
Before you start, make sure you have:
- Mistral account — MCP features are available on all plans, including the free tier
- Active Dataslayer account with at least one connected data source
- Web access for initial setup — Custom connectors must be configured via the web interface (chat.mistral.ai)
MCP support in Mistral AI is available to all users and works seamlessly across desktop and mobile platforms.
Video Guide
Watch our step-by-step video tutorial:
Step-by-Step Instructions
1. Access Connectors Settings
- Log in to chat.mistral.ai on your web browser
- Click the toggle panel button on the left side
- Open the Intelligence menu
- Click Connectors
2. Get Your Dataslayer MCP Server URL
Before connecting, you need to retrieve your unique MCP server URL from Dataslayer:
- Log in to your Dataslayer account
- Go to AI → Dataslayer MCP
- Click on Connect with Mistral AI
- Copy your unique server URL (this URL is personal and unique to your account)
3. Add Dataslayer as Custom Connector
Back in Le Chat's Connectors page:
- Click + Add Connector > Custom MCP Connector
- Enter the following details:
- Connector Name: Enter "Dataslayer" (or any name you prefer)
- Connection server: Paste the unique URL you copied from your Dataslayer account
- Description: Enter "Dataslayer - Marketing Data Connector" (or any description you prefer)
- Authentication method: Select No athentication since the URL is already unique per user
- Click Connect
4. Confirm Connection
Once connected:
- le Chat will confirm the connection is successful
- You should see "Dataslayer" listed in your My Connectors tab
- The connector card will be visible and ready to use
5. Enable the Connector in Chat
Before using the connector:
- Start a new chat in le Chat
- Click the enable tools icon (usually at the bottom of the chat)
- Ensure your Dataslayer connector is selected/enabled
6. Test Your Connection
In the chat, try a simple query:
"Using Dataslayer, show me my Google Ads spend for the last 7 days"If everything is set up correctly, Le Chat will fetch your data and display the results.
Best Practices for Mistral AI MCP
To get the most accurate and useful results while MCP is in beta, structure your prompts clearly:
Be specific about what you want:
- Mention which metrics and dimensions you need
- Include date ranges and any filters
- Specify the data source if you have multiple accounts connected
Example of a well-structured prompt:
"Using Dataslayer, retrieve my LinkedIn Ads data for account 'Account Name'for October 2025. Show me spend, impressions, CTR, and conversions
grouped by campaign name, sorted by spend from highest to lowest."
Instead of a vague prompt:
"Show me my LinkedIn data"The more explicit you are, the better Le Chat can understand exactly which data to retrieve and how to format it.
What Happens Next?
Once connected, Le Chat can:
- Query any data source connected to your Dataslayer account
- Provide analysis and insights based on your marketing data
- Answer follow-up questions to help you understand performance trends
- Create summaries and reports based on your actual data
- Suggest optimizations and highlight key patterns in your campaigns
You don't need to reconnect each time. The integration remains active as long as your Dataslayer account is current, and syncs automatically across all your devices.
Managing Your Connection
To view or manage your connector:
- Go to le Chat → Toggle panel → Intelligence menu → Connectors
- Find Dataslayer in your My Connectors tab
- Click on the connector card to see details, functions, and settings
To disconnect le Chat:
- In the connector card, click the menu options (three dots)
- Select Disconnect or Remove
To reconnect: Follow the same setup process again.
Updating your connection: If you need to update your server URL (for example, if you regenerate your MCP credentials in Dataslayer), simply remove the old connector and add it again with the new URL.
Authentication and Security
Mistral AI connects to Dataslayer through a secure, encrypted connection using the Model Context Protocol. Your data credentials are never shared with Mistral directly, and all queries are processed through Dataslayer's secure infrastructure.
Mistral's privacy advantages:
- EU-hosted infrastructure: All data processing happens in European data centers
- ISO 27001 compliant: Enterprise-grade security standards
- No subscription required: Test MCP capabilities risk-free on the free plan
Your unique MCP URL is personal to your account and should not be shared with others.
For more details on how authentication works, see How does Dataslayer MCP handle authentication?
Comparing AI Providers
Mistral AI is one of three AI providers that work with Dataslayer MCP. To see how it compares with ChatGPT and Claude:
- Which AI providers does Dataslayer MCP support?
- What are the differences between ChatGPT, Claude, and Mistral within MCP?
- Can I use multiple AI providers at the same time?
As always, please contact us via our live chat on our website or via email if you still have doubts or questions. We are happy to help!