Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
LEGO sets, parts, minifigs, and inventories as an MCP server
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
You need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"lego-oracle": {
"command": "npx",
"args": [
"-y",
"lego-oracle"
]
}
}
}Run this in your terminal
claude mcp add lego-oracle -- npx -y lego-oraclePaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"lego-oracle": {
"command": "npx",
"args": [
"-y",
"lego-oracle"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"lego-oracle": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"lego-oracle"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
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These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Runs on your computer; the tool list appears in your AI app after you install it.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
The registry name was verified with the GitHub account gregario, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 8 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
In the same category: Spec Driven Development, Remote Desktop Commander, Filesystem MCP
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Filesystem MCP server for AI assistants.
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
LEGO Oracle LEGO sets, parts, minifigs, and inventories. An MCP server.
Ask your AI assistant about LEGO sets, find specific bricks, look up minifigures, browse themes, and compare sets. All backed by Rebrickable's catalog (26k sets, 62k parts, 17k minifigs), not hallucinations.
10 tools. Zero config. Works with every MCP-compatible IDE.
npx -y lego-oracle
Claude Code
claude mcp add lego-oracle -- npx -y lego-oracle
Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%/Claude/claude_desktop_config.json (Windows):
{
"mcpServers": { "lego-oracle": { "command": "npx", "args": ["-y", "lego-oracle"] } } }
</details>
Cursor
Add to .cursor/mcp.json:
{
"mcpServers": { "lego-oracle": { "command": "npx", "args": ["-y", "lego-oracle"] } } }
</details>
VS Code (Copilot)
Add to .vscode/mcp.json:
{
"servers": { "lego-oracle": { "command": "npx", "args": ["-y", "lego-oracle"] } } }
</details>
Windsurf
Add to ~/.codeium/windsurf/mcp_config.json:
{
"mcpServers": { "lego-oracle": { "command": "npx", "args": ["-y", "lego-oracle"] } } }
</details>
Zed
Add to settings.json:
{
"context_servers": { "lego-oracle": { "command": { "path": "npx", "args": ["-y", "lego-oracle"] } } } }
</details>
| Tool | Description |
|---|---|
search_sets | Search for sets by name, theme, year, or piece count. Full-text search with filters. |
get_set | Get complete set details: inventory (grouped by part category), minifigures, theme hierarchy. |
compare_sets | Compare 2-4 sets side by side: piece count, year, theme, minifigs, shared parts. |
| Tool | Description |
|---|---|
search_parts | Search parts by name, category, colour, or material. |
get_part | Get part details including available colours and mold/print variants. |
find_part_in_sets | Find which sets contain a specific part (optionally in a specific colour), sorted by quantity. |
| Tool | Description |
|---|---|
search_minifigs | Search minifigures by name. |
get_minifig | Get minifig details and every set it appears in. |
| Tool | Description |
|---|---|
browse_themes | Browse the LEGO theme hierarchy. Top-level themes or drill into sub-themes with set counts. |
find_mocs | Find community alternate builds (MOCs) for a set's parts. |
All data is embedded at build time from Rebrickable. No network calls at runtime.
| Category | Count |
|---|---|
| Sets | 26,339 |
| Parts | 61,702 |
| Colours | 275 |
| Minifigures | 16,646 |
| Inventory entries | 1,483,652 |
| Part relationships | 35,757 |
| Themes | 490 |
Data is updated daily via GitHub Actions. New npm versions are published automatically when Rebrickable data changes.
npm install
npm run build npm test # 141 tests
To refresh data from Rebrickable:
npm run fetch-data
npm run build
Data from Rebrickable. LEGO is a trademark of the LEGO Group. This project is not produced by or endorsed by the LEGO Group.
MIT