Diamond MCP is answering right now. Last checked 7 min ago. It exposes 11 tools. Last commit 15 Sep 2026.
Sourced diamond and gemology tools for AI assistants, with 90 encyclopedia entries.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 5 September 2026. No other catalogue keeps this.
We read the source, 20 h ago · tools taken from the live server · rules 3dff92dd89df
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.
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.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.
claude mcp add diamond-mcp --transport http https://diamond-mcp.stienhardt.workers.dev/mcp
{
"mcpServers": {
"diamond-mcp": {
"url": "https://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"
}
}
}
{
"mcpServers": {
"diamond-mcp": {
"url": "https://diamond-mcp.stienhardt.workers.dev/mcp"
}
}
}
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
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://diamond-mcp.stienhardt.workers.dev/mcp | streamable-http | answering | 85 ms | 7 min ago |
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Answers built from our own checks of this server.