Test with Postman

Once you've configured Postman with OAuth 2.0 authentication for Salesforce, you can test the MCP server by calling its tools. This page walks through basic testing scenarios to verify your connection is working correctly.

Some MCP tools don't require any input parameters, making them ideal for initial testing. A simple example is getUserInfo, which returns information about the currently authenticated user.

  1. In the Message tab, you'll see a list of available tools on the left side.

  2. In the right pane, you'll see a JSON structure with "method": "tools/call" and a "params" section.

  3. Click on a tool name (such as getUserInfo) in the left pane. Postman automatically populates the JSON in the right pane:

  4. Click Run in the upper right corner.

  5. View the results in the Response pane at the bottom of the window.

For getUserInfo, you'll see information about the current authenticated user — name, role, profile, timezone, and preferences.

Many MCP tools require input parameters. The soqlQuery tool is a good example that lets you execute SOQL queries against your Salesforce org.

  1. Click on soqlQuery in the tools list on the left side. Postman populates the JSON structure in the right pane:

  2. Add your SOQL query to the arguments object. For example, to query Account records:

  3. Click Run in the upper right corner.

  4. View the query results in the Response pane at the bottom.

The response shows the matching Account records with all requested fields.

Once you've successfully tested these basic tools, you can explore other available tools:

  • getObjectSchema - Get schema information about Salesforce objects
  • getRelatedRecords - Retrieve related records for a given record
  • listRecentSobjectRecords - Get recently viewed records of a specific object type
  • find - Search across multiple objects using SOSL

Each tool will have different required and optional parameters. Click on the tool name in Postman to see the parameter structure, then add your specific values in the arguments object before clicking Run.

The MCP server itself is completely deterministic and does not involve an LLM for tool calls. When you call a tool directly in Postman, you're making direct API calls to Salesforce and receiving structured responses—no language model is processing your requests or responses.

Postman offers AI-powered developer tools that allow you to connect an LLM to the MCP server responses if you want to test agentic workflows. These AI features are separate capabilities within Postman and are not part of the MCP server itself.