Server Connection Failures

To troubleshoot server connection issues:

Use the URL format that matches your org type and server type:

• For a Sandbox or scratch org with a standard server: https://api.salesforce.com/platform/mcp/v1/sandbox/platform/sobject-all
• For a Developer, Enterprise, other non-sandbox org with a standard server: https://api.salesforce.com/platform/mcp/v1/platform/sobject-all
• For a Sandbox or scratch org with a custom server: https://api.salesforce.com/platform/mcp/v1/sandbox/custom/myserver
• For a Developer, Enterprise, or other non-sandbox org with a custom server: https://api.salesforce.com/platform/mcp/v1/custom/myserver

Be sure to activate your Salesforce Hosted MCP servers in the Salesforce UI before use.

Try connecting to sobject-all.

• If sobject-all works, your original server name or configuration is likely incorrect.
• If sobject-all also fails, continue to the next steps.

Confirm that your Org edition supports API access (for example, Developer or Enterprise, or Professional with API access enabled).

• Confirm that you can log in to Salesforce UI from the same machine or network.
• Test with Postman or MCP Inspector. If those tests succeed, the issue is likely specific to your MCP client settings.