MCP Configuration Validator
Check a common mcpServers JSON shape for missing commands, URLs, and malformed argument lists.
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Result
How to use it
Paste a local MCP server configuration to validate its common structural fields.
Try this example
{"mcpServers":{"files":{"command":"node","args":["server.js"]}}}What to check
Clients support different configuration dialects; this checks a common shape, not connectivity.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
Does MCP validation connect to configured servers?
No. It checks JSON structure and common command, URL, and argument shapes without launching a server or testing credentials.
Can a structurally valid MCP config still fail?
Yes. Executables may be missing, URLs unreachable, or credentials invalid. Test the configuration in its actual client environment.
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