# DecimalAI Skills Registry

MCP server connecting coding assistants to the DecimalAI registry. It searches agent skills ranked by verified benchmark lift rather than download counts.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed, Gemini CLI · ★ 1
- Author: decimal-labs
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/decimal-labs/decimalai-mcp
- Updated: 2026-10-15
- HTML: https://affpapa.org/en/nevibecode/mcp/decimalai-skills-registry

## What it does

This server exposes three read-only tools: `search_skills`, `get_skill`, and `get_leaderboard`. Instead of relying on raw install counts, the registry evaluates agent extensions through test pass rates and measured benchmark gains over standard baseline prompts.

Running the tools returns safety scan evaluations, efficiency metrics, full `SKILL.md` instructions, and ready-made installation flags for Claude Code. Running the server requires Python 3.10 or newer via `uvx`.

No account token is mandatory. Public registry endpoints respond without credentials. Supplying `DECIMAL_API_KEY` is only necessary when you want responses to mark skills that your team already added.

## Requirements
- Needs: Python and uv (commands run via uvx)
- Environment variables: `DECIMAL_API_KEY` — keys and tokens: ask the human for the values, never commit them or put them in shared files.

## Install

### Claude Code (native platform)

**Platform CLI**
```bash
claude mcp add registry -e DECIMAL_API_KEY=<DECIMAL_API_KEY> -- uvx decimalai-mcp
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from decimalai-mcp <command>

### Codex

**Platform CLI**
```bash
codex mcp add decimalai-skills-registry --env DECIMAL_API_KEY=<DECIMAL_API_KEY> -- uvx decimalai-mcp
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from decimalai-mcp <command>

### Cursor

**Config file**
File `.cursor/mcp.json`:
```json
{
    "mcpServers": {
        "decimalai-skills-registry": {
            "command": "uvx",
            "args": [
                "decimalai-mcp"
            ],
            "env": {
                "DECIMAL_API_KEY": "<DECIMAL_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from decimalai-mcp <command>

### GitHub Copilot

**Config file**
File `.vscode/mcp.json`:
```json
{
    "servers": {
        "decimalai-skills-registry": {
            "type": "stdio",
            "command": "uvx",
            "args": [
                "decimalai-mcp"
            ],
            "env": {
                "DECIMAL_API_KEY": "<DECIMAL_API_KEY>"
            }
        }
    }
}
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from decimalai-mcp <command>

### Gemini CLI

**Platform CLI**
```bash
gemini mcp add -e DECIMAL_API_KEY=<DECIMAL_API_KEY> decimalai-skills-registry uvx decimalai-mcp
```
Replace <…> with your own values. uvx runs the command named after the package; if the README names another one, use uvx --from decimalai-mcp <command>

## When to use it
- find agent tools evaluated against measured baseline metrics
- inspect safety audits and pass rates before installing a skill
- query leaderboard rankings sorted by efficiency or model score gains
- retrieve installation arguments and `SKILL.md` configs automatically

## Example prompts
- Search DecimalAI for SQL skills that demonstrate measured benchmark gains
- Inspect the decimalai record and safety report for playwright-crawler
- Show the top skills on the DecimalAI leaderboard by efficiency

## Similar
- [REA](https://affpapa.org/en/nevibecode/mcp/rea.md) — MCP server · ★ 392262
- [GitHub](https://affpapa.org/en/nevibecode/mcp/github.md) — MCP server · ★ 33989
- [Netdata](https://affpapa.org/en/nevibecode/mcp/netdata.md) — MCP server · ★ 81163
- [browser-use](https://affpapa.org/en/nevibecode/mcp/browser-use.md) — MCP server · ★ 119231
- [Codebase Memory](https://affpapa.org/en/nevibecode/mcp/codebase-memory.md) — MCP server · ★ 47577
- [mcp-server](https://affpapa.org/en/nevibecode/mcp/mcp-server.md) — MCP server · ★ 43902

---
NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md