mockd MCP server

mockd is a free tool that creates fake versions of online services, called mocks, so you can test software without touching the real thing. It comes with a built-in helper that lets your AI assistant set up and manage those fake services for you. It is handy for anyone who needs a pretend API, sample data, or a safe place to try things out.

What this MCP server does

You tell your AI what kind of fake service you need, like a pretend user list or a fake weather API. Your AI passes that request to the mockd helper running on your computer. The helper creates the fake service and starts it up, so it behaves like the real thing. You can then send test requests to it, and your AI can look at the results, change settings, or add pretend problems like slow responses. Everything happens locally, so nothing is sent to an outside company.

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What you can do with it

• Create a fake web address that returns sample data
• Add pretend users, orders, or other records you can read and change
• Make the fake service slow or unreliable on purpose to test how your app copes
• Import a real service description and turn it into a working fake
• Check what requests were made to your fake service
• Save and switch between different sets of fake services
• Export your fake service setup so you can share or reuse it

Try asking your AI

• “Create a fake user API with a list of users I can add to and read from”
• “Make a pretend weather service that returns a sunny forecast for any city”
• “Add some random failures to my fake payment service so I can see how my app handles errors”
• “Show me all the requests that were sent to my fake service in the last hour”

What it gives back to you

You get back plain answers in the chat, like a list of the fake services you have running, the data inside them, or a note that something was created or changed. If you ask for request logs, you see a simple list of what was called and when. When your AI checks something, it tells you yes or no, or shows you the details it found.

Before you start

Who it's for

Anyone who needs to test software without a real backend, like developers, testers, and product people who want to try ideas safely.