CAST IMAGING – V3 – MCP Server – VS CODE - Dynamic client Registration Not Supported – CAST

Once the MCP server is started a pop-up opens with the message “Dynamic client Registration Not Supported “ i

Also user gets a 401 error when running the curl command though there is also a case below where the curl command works.

Explanation

Case 1:

This issue usually occurs when an incorrect API key or URL is being passed.

Run the following Curl command to cross-check the API key and the Imaging public URL by reviewing the output from the command

curl -H "x-api-key: <your-imaging-api-key>" http://<your_imaging_public_URL>:8090/rest/ready

Based on the error received this is an API key–related issue.

Generate a new API key
Reinitialize the API key into mcp.json. If a new API key is generated it should be corrected in mcp.json. Please note that only one key can exist for each user and when a new key is generated, the old one instantly becomes invalid. Please refer Generating an API key

Case 2:

The above curl command works. If the MCP servers in the mcp.json file is switched

Reset the API Key by clearing the input value provided as below:

After that you should be asked to input the new apikey and then connect fine to the new server.