Connect / Mistral Le Chat
Connect OntoRamp to Mistral Le Chat
Add OntoRamp as a custom MCP connector in Le Chat.
Available on all Le Chat plans, including Free.
Before you start
You need an OntoRamp API key — get one free at ontoramp.com/mcp. Keys arrive by email within 60 seconds and are passed as a Bearer token in the Authorization header: Authorization: Bearer YOUR_API_KEY. If your tool asks for an API key directly, paste just the key — the header is added for you.
Server URLs
https://ontoramp-graph-query.fly.dev/mcpMCP Registry: com.ontoramp/graph-query
https://ontoramp-decision-intelligence.fly.dev/mcpMCP Registry: com.ontoramp/decision-intelligence
https://ontoramp-transformation-radar.fly.dev/mcpMCP Registry: com.ontoramp/transformation-radar
https://ontoramp-knowledge-cartographer.fly.dev/mcpMCP Registry: com.ontoramp/knowledge-cartographer
https://mcp.ontoramp.com/mcpSetup
Each server in the table above is its own connection — repeat the setup (or add another config entry) for each one you want.
- 1.In Le Chat, open the Connectors page (currently under Intelligence in the sidebar).
- 2.Click + Add Connector and switch to the Custom MCP Connector tab.
- 3.Enter a Connector name (no spaces or special characters) and paste the OntoRamp server URL into Server URL.
- 4.Click Connect. Le Chat detects the authentication method — paste your OntoRamp key when prompted; it is sent as an Authorization Bearer header.
- 5.Manage the connector under My Connectors and enable it from the tools picker in your conversations.
Adding connectors is an administrator action. On Free, Pro, and Student plans the account owner is the administrator by default; in a team workspace, ask your workspace admin to add the connector.
Tools you get
OntoRamp Graph Query
OntoRamp Decision Intelligence
OntoRamp Transformation Radar
OntoRamp Knowledge Cartographer
OntoRamp Platform
Full parameter and response schemas are in the MCP API reference.