Drex MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| DREX_API_KEY | Yes | Your Nace.AI Drex API key |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| drex_decideC | Return Drex's selected choice and probability distribution for a closed decision. Drex returns a decision; the calling agent remains responsible for any action. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 1 tool
With only one tool, there is zero possibility of confusion or overlap. The single tool's purpose is clearly stated and cannot be mistaken for any other tool.
The name 'drex_decide' follows a clear server-prefix + verb convention and is readable and predictable. With only one tool there is no pattern to compare against, but the naming itself is sound and consistent with the server identity.
A single tool feels thin, but the server's stated scope — returning a closed decision with a probability distribution — is narrow enough that one tool can plausibly fulfill it. Borderline, but not egregiously under-scoped.
The core decision-making operation is covered, and the description clearly demarcates that acting on the decision is the caller's responsibility. Minor gaps exist (e.g., no way to configure Drex's behavior or provide structured context), but the primary workflow is functional.