Postman provides a simple and effective way to explore and validate the tools exposed by MCP for ArcGIS Location Services server without first building an AI application or custom MCP client. By using Postman, you can interact with the MCP server directly over HTTP, inspect requests and responses, and confirm authentication, inputs, and outputs are working as expected.
Postman client interface showing a sample request to the MCP for ArcGIS Location Services server
Prerequisites
Your Postman must be properly configured to access MCP for ArcGIS Location Services. For setup instructions, go to Get started.
Example
Use the MCP tools available in Postman to test requests and verify that the MCP server is responding correctly.
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In the Message tab, go to the Tools section and click any tool to view its description, input parameters, and example payload.
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Click the find_address_candidates tool to expand it. This tool performs geocoding by finding candidate addresses for a given input query.
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In the singleLine field, type
78 divis dr belfast. -
Click Run to send the request to the MCP server.
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Under Response, review the tool output and verify that candidate addresses are returned. The response should look similar to the following:
{"content": [{"type": "text","text": "{\"candidates\":[{\"address\":\"78 Divis Drive, Ballymurphy, Belfast, County Antrim, Northern Ireland, BT11 8AB\",\"location\":{\"x\":-5.981650904744,\"y\":54.586350705748},\"score\":100.0}],\"spatialReference\":{\"latestWkid\":4326,\"wkid\":4326}}"}],"structuredContent": {"candidates": [{"address": "78 Divis Drive, Ballymurphy, Belfast, County Antrim, Northern Ireland, BT11 8AB","location": {"x": -5.981650904744,"y": 54.586350705748},"score": 100}],"spatialReference": {"latestWkid": 4326,"wkid": 4326}},"isError": false}