TMS AI Studio v1.4 is bringing HTTP.sys to MCP

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keeps evolving, and in the new v1.4.0.0 release were introducing a major upgrade to the HTTP-based MCP transport layers. On Windows, both TTMSMCPSSETransport and TTMSMCPStreamableHTTPTransport now run on HTTP.sys Microsofts kernel-level HTTP server stack.

The benefits of switching to HTTP.sys on Windows is clear:

Native performance: Requests are handled directly by the Windows kernel.

Lightweight: No dependencies on 3rd party libraries.

Secure: Reuse certificates from the certificate store instead of relying separate files.

This isnt just a swap of the initial implementation. Under the hood weve created an abstract HTTP server layer, which in the future will allow us to plug in different engines per platform!

Changes to Transport Layers


This upgrade comes with a few adjustments, which were necessary in order to provide a more flexible and robust foundation for future extensions.

Removed SSLVersion: Theres no need to pick TLS versions anymore. TLS 1.0 and 1.1 are deprecated by many browsers and is now also

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by default.

Updated Custom Header Events: The OnCustomHeaderCheck and OnCustomHeaderSet events have been replaced by OnGetCustomHeader and OnSetCustomHeader to enable using the abstraction layer.

SSL Certificates: HTTP.sys does not rely on certificate files, so we are introducing a file-based system for the initial setup to remain consistent across platforms. If you are already using SSL, please

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on how to get everything up and running again.
Real-World Use: ChatGPT and Claude Web Interfaces


To put the new architecture to the test, we connected one of our MCP servers directly to the ChatGPT and Claude web interfaces using their custom connector support. Our StreamableHTTP demo was the perfect fit, as it already exposes a streamable HTTP transport for remote access. For those unfamiliar, this demo server offers a single tool: fetching the current weather for a given city.

After building and deploying the server, we added it as a connector and used it directly inside a conversation. In ChatGPT, this requires enabling Developer Mode first, so

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if you havent done that yet.

Once the connector is active, we can start asking questions that the newly registered tool can answer:

If you would like to repeat this with you own MCP server, be aware of the following requirements:

ChatGPT	Claude
Needs a Plus or Pro individual plan. For Business and Enterprise members this feature is being currently rolled out, check with the administrator to have this feature enabled. Requires HTTPS	Needs a Pro or Max individual plan. Team and Enterprise plans are also supported, but only the owner can add new connectors. Requires HTTPS Cannot connect to a connector with a port in it's address. For example: Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста. won't work.

Don't have access to paid ChatGPT or Claude but still want to see the server live? We decided to leave our demo application online as a showcase of what TMS AI Studio can do! Pick your own favourite MCP client application and use the following address to connect to our live MCP demo server:

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.

Conclusion


Switching to HTTP.sys is an important structural step and gives us a cleaner foundation for future improvements across all platforms. Testing against platforms such as ChatGPT and Claude confirms that TMS AI Studio provides a robust, practical MCP implementation thats ready to be used in many different contexts.

The v1.4.0.0 release has more to offer! Well introduce the next addition in an upcoming post so stay tuned!

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