Lego Oracle MCP Server
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. Its 10 documented tools cover sets, part. It runs locally over stdio via the published package.
People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.
VERIFIED ACTIVE
LAST COMMIT 2026-08-01 · ★ 2 · #398 OF 848 MAINTAINED OTHER · VERIFIED 2026-08-25
MIT · TypeScript servers · how we verify → /methodology
01 · Install Lego Oracle
Claude Code
claude mcp add gregario-lego-oracle -- npx -y lego-oracleClaude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"gregario-lego-oracle": {
"command": "npx",
"args": [
"-y",
"lego-oracle"
]
}
}
}Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.
Using another client? Same JSON, different key
Claude Desktop · mcpServers
Cursor · mcpServers
VS Code · servers
Windsurf · mcpServers
Zed · context_servers
Cline · mcpServers
Roo Code · mcpServers
Continue · mcpServers
LibreChat · mcpServers
Gemini CLI · mcpServers
Codex CLI · mcp_servers
Full setup guides: every client.
02 · Evidence
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
runs as local process (stdio) - runs on your machine with your user's permissions
license MIT - declared in the repository
npm package lego-oracle - unscoped; check the name against the project README before installing
registry namespace io.github.gregario is GitHub-verified and matches the repo owner
03 · What Lego Oracle can do
Prose above is summarized from the project's README and registry record - no invented capabilities.
What you can build
With this server connected, an agent can search for sets by name, theme, year, or piece count. Full-text search with filters, get complete set details: inventory (grouped by part category), minifigures, theme hierarchy, compare 2-4 sets side by side: piece count, year, theme, minifigs, shared parts, and search parts by name, category, colour, or material.
Capability map
Tools grouped from the project's README - what Lego Oracle lets an agent do.
read & search
8 tools - e.g. Search for sets by name, theme, year, or piece count. Full-text search with filters.; Get complete set details: inventory (grouped by part category), minifigures, theme hierarchy.; Search parts by name…
search_sets · get_set · search_parts · get_part · find_part_in_sets · search_minifigs…
Compare
1 tool - e.g. Compare 2-4 sets side by side: piece count, year, theme, minifigs, shared parts.
compare_sets
Browse
1 tool - e.g. Browse the LEGO theme hierarchy. Top-level themes or drill into sub-themes with set counts.
browse_themes
Latest releases
v0.1.2 · 2026-05-02
v0.1.1 · 2026-03-15
Initial release. 10 tools, 141 tests, 26k sets, 62k parts, 17k minifigs from Rebrickable.
04 · Who maintains Lego Oracle
lego-oracle is maintained by gregario. We track 12 MCP servers from gregario - 12 actively maintained, 41 combined GitHub stars, oldest repo from Mar 2026. Full record: all servers from gregario.
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- dnd-oracle D&D 5e SRD MCP server with monster, spell, equipment search and encounter building tools ★ 5
- astronomy-oracle Astronomical catalog data and observing session planner. 13,000+ objects from OpenNGC. ★ 3
- lorcana-oracle Disney Lorcana TCG MCP server with card search, deck analysis, ink curves, and set browsing ★ 3
- mtg-oracle Magic: The Gathering MCP server - cards, rules, combos, and Commander intelligence ★ 4
05 · Facts
- repository
- github.com/gregario/lego-oracle
- category
- other - ranked #398 of 848 actively-maintained other servers as of 2026-08-25.
- registry
- io.github.gregario/lego-oracle (active, first published 2026-03-15)
- packages
- npm:lego-oracle
06 · Lego Oracle FAQ
Is Lego Oracle still maintained?
Yes - as of 2026-08-25, its last commit was 2026-08-01. We re-verify nightly.
What can Lego Oracle do?
With this server connected, an agent can search for sets by name, theme, year, or piece count. Full-text search with filters, get complete set details: inventory (grouped by part category), minifigures, theme hierarchy, compare 2-4 sets side by side: piece count, year, theme, minifigs, shared parts, and search parts by name, category, colour, or material.
How do I install Lego Oracle?
Run `npx -y lego-oracle`. You can also paste the ready-made client config above.
Does Lego Oracle run locally?
Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.
07 · Alternatives to Lego Oracle
Alternatives to Lego Oracle
Maintained other servers if Lego Oracle isn't the fit.
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- Ship Swift 40+ production-ready SwiftUI recipes for building full-stack iOS apps via MCP. ★ 2,968 · 2026-08-09
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