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URL: https://www.cdata.com/kb/tech/presto-cloud-librechat.rst

⇱ Integrate LibreChat with Live Presto Data via CData Connect AI

Integrate LibreChat with Live Presto Data via CData Connect AI

👁 Yazhini G
Yazhini G
Technical Marketing Engineer
Leverage the CData Connect AI Remote MCP Server to enable LibreChat to securely access and query live Presto data from within the chat interface.

LibreChat is an open-source, self-hosted AI chat platform that brings together multiple LLM providers, agents, and assistants behind a single interface. It also supports the Model Context Protocol (MCP), so you can connect external tools and data sources directly to the chat and pull in live data from the systems you already work with.

By integrating LibreChat with CData Connect AI through the built-in MCP Server, LibreChat gains governed, real-time access to live Presto data. This enables you to list catalogs, explore schemas, and query records from Presto data using natural language prompts, with all data access running securely against authorized sources.

This article explains how to configure Presto connectivity in Connect AI, generate the required personal access token, install LibreChat, register the Connect AI MCP Server, configure an LLM provider, and verify the integration by querying live Presto data from the LibreChat interface.

About Presto Data Integration

Accessing and integrating live data from Trino and Presto SQL engines has never been easier with CData. Customers rely on CData connectivity to:

  • Access data from Trino v345 and above (formerly PrestoSQL) and Presto v0.242 and above (formerly PrestoDB)
  • Read and write access all of the data underlying your Trino or Presto instances
  • Optimized query generation for maximum throughput.

Presto and Trino allow users to access a variety of underlying data sources through a single endpoint. When paired with CData connectivity, users get pure, SQL-92 access to their instances, allowing them to integrate business data with a data warehouse or easily access live data directly from their preferred tools, like Power BI and Tableau.

In many cases, CData's live connectivity surpasses the native import functionality available in tools. One customer was unable to effectively use Power BI due to the size of the datasets needed for reporting. When the company implemented the CData Power BI Connector for Presto they were able to generate reports in real-time using the DirectQuery connection mode.


Getting Started


Step 1: Configure Presto connectivity for LibreChat

Connectivity to Presto from LibreChat is made possible through Connect AI's Remote MCP Server. To interact with Presto data from LibreChat, start by creating and configuring a Presto connection in Connect AI.

  1. Log into Connect AI, click Sources, and then click Add Connection
    2. 👁 Adding a connection in Connect AI
  2. Select Presto from the Add Connection panel
    3. 👁 Selecting data source
  3. Enter the necessary authentication properties to connect to Presto.

    Set the Server and Port connection properties to connect, in addition to any authentication properties that may be required.

    To enable TLS/SSL, set UseSSL to true.

    Authenticating with LDAP

    In order to authenticate with LDAP, set the following connection properties:

    • AuthScheme: Set this to LDAP.
    • User: The username being authenticated with in LDAP.
    • Password: The password associated with the User you are authenticating against LDAP with.

    Authenticating with Kerberos

    In order to authenticate with KERBEROS, set the following connection properties:

    • AuthScheme: Set this to KERBEROS.
    • KerberosKDC: The Kerberos Key Distribution Center (KDC) service used to authenticate the user.
    • KerberosRealm: The Kerberos Realm used to authenticate the user with.
    • KerberosSPN: The Service Principal Name for the Kerberos Domain Controller.
    • KerberosKeytabFile: The Keytab file containing your pairs of Kerberos principals and encrypted keys.
    • User: The user who is authenticating to Kerberos.
    • Password: The password used to authenticate to Kerberos.
    👁 Configuring a connection (Salesforce is shown)
  4. Click Save & Test
  5. Navigate to the Permissions tab and update user-based permissions
    6. 👁 Updating permissions

Add a Personal Access Token

A Personal Access Token (PAT) is used to authenticate the connection to Connect AI from LibreChat. It is best practice to create a separate PAT for each integration to maintain granular access control.

  1. Click the gear icon () at the top right of the Connect AI app to open Settings
  2. On the Settings page, go to the Access Tokens section and click Create PAT
  3. Give the PAT a descriptive name and click Create
    4. 👁 Creating a new PAT
  4. Copy the token when displayed and store it securely. It will not be shown again

With the Presto connection configured and a PAT generated, LibreChat can now connect to Presto data through Connect AI.

Step 2: Install LibreChat and configure Connect AI MCP

Next, install LibreChat locally and configure the Connect AI Remote MCP Server so that the chat interface can discover and call live data tools through Connect AI.

  1. Install LibreChat by following the official installation guide. If you are using the npm setup, make sure MongoDB and MeiliSearch are installed and running locally
  2. Once the installation is complete, start LibreChat and open http://localhost:3080/ in your browser to access the chat interface 👁 LibreChat chat interface
  3. In the left navigation bar, click the MCP Settings icon, then click Add MCP 👁 Adding a new MCP server in LibreChat
  4. In the Add MCP panel, configure the server with the following values:
    • Name: CData MCP, or any name of your choice
    • Description: Optional description for the server
    • MCP Server URL: https://mcp.cloud.cdata.com/mcp
    • Transport: Streamable HTTPS
    • Authentication: API Key
    • Header Format: Basic
    • API Key: base64-encoded value of email:PAT

    Note: LibreChat will use Basic authentication with Connect AI. Combine your Connect AI user email and the PAT you created earlier in the format email:PAT, then base64 encode the combined string and paste it in the API Key field. For example, [email protected]:ABC123...XYZ789 base64-encoded becomes something like: dXNlckBkb21haW4uY29tOkFCQzEyMy4uLlhZWjc4OQ==

    👁 Configuring the Connect AI MCP Server
  5. Check I trust this application and click Add to save the server
  6. The CData MCP server now appears in the left navigation bar. Click the connect icon next to it to establish the connection to Connect AI 👁 CData MCP server connected in LibreChat

Enable the MCP server and configure an LLM provider

LibreChat requires at least one LLM provider to power the chat. Enable the MCP server in the chat input and add an API key for your preferred provider so the model can interpret prompts and call MCP tools through Connect AI.

  1. In the chat interface, click the MCP selector at the bottom of the input box and confirm that CData MCP is checked so the tools are exposed to the chat 👁 Enabling the CData MCP server in the chat input
  2. At the top of the chat, click the model selector and choose your preferred LLM provider (e.g., OpenAI, Anthropic, Google) and model 👁 Selecting an LLM provider and model
  3. Click Set API Key next to the chosen provider, paste your provider API key, and click Submit 👁 Setting the LLM provider API key

With the MCP server and an LLM provider configured, LibreChat is ready to query live Presto data through Connect AI.

Step 3: Query live Presto data from LibreChat

With the integration complete, use the LibreChat chat input to interact with live Presto data through natural language prompts handled by the configured LLM.

  1. With the CData MCP server enabled and a model selected, type a prompt in the chat input, for example:
    • List all catalogs in my cdata mcp
    • Show the available schemas and tables for Presto
    • Query the top 5 records from a table in Presto data
  2. LibreChat calls the Connect AI MCP Server and returns live results from Presto data 👁 Querying live data from LibreChat

At this point, your LibreChat instance communicates with the Connect AI MCP Server and retrieves live Presto data through remote MCP tools directly from the chat interface.

Get CData Connect AI

To access hundreds of SaaS, Big Data, and NoSQL sources directly from your cloud applications, try CData Connect AI today! Download a free 14-day trial, and as always, our world-class Support Team is available to assist you with any questions you may have.