Question 1

What is the Reexpress MCP Server?

Accepted Answer

It's a drop-in solution that adds statistical verification to your LLM pipelines, providing a reliable second opinion for AI workflows, especially in software development and data science.

Question 2

Which LLMs are currently supported?

Accepted Answer

Currently, it's primarily designed for Claude 3.7 Sonnet from Anthropic. Support for more models and platforms is planned.

Question 3

How does it work?

Accepted Answer

It uses a pre-trained Similarity-Distance-Magnitude (SDM) estimator to check the LLM's response and calculate a robust estimate of predictive uncertainty.

Question 4

What is SDM estimator?

Accepted Answer

SDM estimator is an ensemble model consist of gpt-4.1-2025-04-14, o4-mini-2025-04-16, and text-embedding-3-large, along with the output from Cladue 3.7, and calculates a robust estimate of the predictive uncertainty against a database of over 100,000 training examples, calibrated against over 100,000 calibration examples.

Question 5

Is my data sent to third parties?

Accepted Answer

Data is only sent via standard LLM API calls to Anthropic and Azure/OpenAI. The SDM estimator processing is done locally.

Question 6

Can I adapt the model to my specific tasks?

Accepted Answer

Yes, you can use the ReexpressAddTrue or ReexpressAddFalse tools to adapt the model to your specific needs.

Question 7

What are the main use cases?

Accepted Answer

Software development, data science, search and QA, and complex LLM pipelines are the main use cases.

Question 8

What is reasoning with SDM verification?

Accepted Answer

It enables LLMs to refine their answers, determine if they need additional resources, or recognize when they've reached an impasse.

Question 9

How does it relate to UBOS?

Accepted Answer

Reexpress MCP Server enhances the capabilities of UBOS by providing a crucial layer of verification for AI Agents, ensuring that AI-driven decisions are based on trustworthy information.

Question 10

Where can I find the documentation?

Accepted Answer

See the provided links for INSTALL.md, CONFIG.md, HOW_TO_USE.md, GUIDELINES.md, and FAQ.md.

Reexpress Verification Server

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