Diamond MCP is answering right now. Last checked 3 min ago. It exposes 11 tools.
Sourced diamond and gemology tools for AI assistants, with 90 encyclopedia entries.
The linked repository no longer exists on GitHub — it was deleted or made private.
What changed 11
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 5 September 2026. No other catalogue keeps this.
What the code does
We have not read this server's code yet, 33 d ago · tools taken from the live server · rules ccca72095570
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
const result = spawnSync(command, args, { cwd, stdio: "inherit", shell: process.platform === "win32" });
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.
claude mcp add diamond-mcp --transport http https://diamond-mcp.stienhardt.workers.dev/mcphttps://diamond-mcp.stienhardt.workers.dev/mcp[mcp_servers.diamond-mcp]
url = "https://diamond-mcp.stienhardt.workers.dev/mcp"{
"mcpServers": {
"diamond-mcp": {
"url": "https://diamond-mcp.stienhardt.workers.dev/mcp"
}
}
}{
"servers": {
"diamond-mcp": {
"type": "http",
"url": "https://diamond-mcp.stienhardt.workers.dev/mcp"
}
}
}Available tools 11
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
lab_grown_grading_landscape
lab_grown_price_index
about_stienhardt
compare_diamonds
define
dutch_marquise_definition
search_encyclopedia
faceup_size
search_inventory
get_product
verify_diamond_report
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://diamond-mcp.stienhardt.workers.dev/mcp | streamable-http | answering | 56 ms | 3 min ago |
Alternatives to Diamond MCP
same job, measured the same waySwedish open data for Claude and other AI assistants - verified, with sources.
Cities: Skylines II wiki, encyclopedia, and mod workflow tools for AI agents.
Invoicing tools for AI assistants: clients, draft invoices with computed tax, and email sending.
Open-source web scraper for AI agents with scrape, crawl, and map tools
Open-source web scraper for AI agents with scrape, crawl, and map tools
Local-first graph memory for AI assistants with SQLite, semantic search, and MCP tools.
German and EU law for AI assistants: statutes and case law in current wording, with sources.
Deploy web apps via AI agents with sota.io. 9 tools for deploy, logs, env, and more.
Diamond MCP — questions
Answers built from our own checks of this server.