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MCP Server

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The following lab focuses on quick configuration of a AWS Knowledge MCP Server and Linear MCP Server.

Requirements​

To configure these MCP examples we will integrate with a knowledge source, AWS, with no Authentication, and Linear, that requires OAuth2 Authentication.

  • Linear Account with a user that has permissions to access issues.

Steps​

AWS Knowledge MCP Server​

For the first example we will integrate with AWS Knowledge Base MCP Server.

  • Go to Retool Home > Resources > MCP Server > Create new.
  • Update the name of the MCP Server to MCP AWS Knowledge Base and the Server URL set to https://knowledge-mcp.global.api.aws.
  • Set the Authentication to None.
  • Select Test Connection to confirm it is successfully configured. Below is the resulting configuration:
AWS MCP Server configuration
AWS MCP Server configuration

The following video walks through creating a sample agent that uses the AWS MCP Server and shows the chat interaction it can perform using the configured AWS MCP resource/tool.

Linear MCP Server​

For the second example we will integrate to Linear's MCP Server, a SaaS ticketing solution.

  • Go to Retool Home > Resources > MCP Server > Create new.
  • Update the name of the MCP Server to mcp linear and the Server URL set to https://mcp.linear.app/mcp.
  • Leave Authentication as Automatic and select Auto-configure authentication.
Automatic-configure authentication
Automatic-configure authentication
  • For Linear it identifies OAuth2 and appropriate settings including Client ID and Client Secret.
Linear OAuth2 authentication
Linear OAuth2 authentication
  • Select Test Connection to confirm it is successfully configured.

You may be presented with a request panel that requires you to allow for authorization of Retool with Linear. Accept this to allow Retool to perform MCP calls.

  • Similar to the previous example, you can create a new Retool Agent, that is configured with a Tool / MCP Server that leverages the mcp linear resource.
  • Use the Configuration Assistant to create an agent configuration that only uses the Linear tool. Once created the following prompt is used in a chat:
Can you provide me open issues that are assigned to me?
  • This results in the following output coming from Linear for issues that match.
Linear MCP Server query by Retool Agent
Linear MCP Server query by Retool Agent