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Catalog MCP Server

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answering

Catalog is answering right now. Last checked 8 min ago. It exposes 11 tools.

Search real parts with datasheet-provenance specs, check compatibility and compose priced BOMs.

Uptime history 13 days of history
13 days agonow
100.0%
Uptime 24h
91 of 91 checks
11
Tools
read from the server
538 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Catalog every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add catalog --transport http https://partsgraph.ai/api/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "catalog": {
      "url": "https://partsgraph.ai/api/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.catalog]
url = "https://partsgraph.ai/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "catalog": {
      "url": "https://partsgraph.ai/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "catalog": {
      "url": "https://partsgraph.ai/api/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.

build
build_bom
Composes a complete BOM for a reference build — quantities, dated indicative prices, per-line rationale, a compatibility verdict for the chosen set, and a CSV export. Override any role with choices.
builds
list_builds
The catalogue's reference builds (robot, weather station, plant waterer) with their roles and candidate parts — the starting point for build_bom.
categories
list_categories
Every category in the catalogue with its part count.
compare
compare_parts
Aligned attribute-by-attribute comparison of two catalogue parts. Absence means the sources did not state a value — never that the part lacks the property.
compatibility
check_compatibility
Evaluates a part set against the build's engineering constraints — supply windows, stall vs peak current, shaft/wheel fit, interfaces, solar chain — with a reasoned verdict per check. Every number cited is a corroborated attribute.
fetch
fetch
Fetch the full provenance-backed record for a search result id as a citable document. Alias of get_part shaped to the search/fetch connector contract.
part
get_part
The complete canonical record for one part: every attribute with its provenance (source, page, verbatim quote, file hash), vendors with dated indicative prices, and datasheet links.
parts
search_parts
Full-text search over the demo catalogue's provenance-backed part records. Filter by category, build or role. Every attribute returned was corroborated against the manufacturer datasheet or vendor page.
provenance
get_provenance
The receipt behind a stated value: the verbatim source quote, the page, the extraction method, and the sha-256 of the exact file it was read from — plus a ready-made citation line. Omit code for every attribute's receipt.
search
search
Search the Partsgraph demo catalogue. Returns result ids for fetch. Alias of search_parts shaped to the search/fetch connector contract.
view
view_bom
Composes the BOM for a reference build and renders it as an interactive view in clients that support MCP Apps. Same data as build_bom.

Endpoints

URLTransportStateLatencyChecked
https://partsgraph.ai/api/mcp streamable-http answering 2002 ms 8 min ago

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Catalog — questions

Answers built from our own checks of this server.

What can Catalog do?
It exposes 11 tools, read directly from the server on our last check. Among them: build_bom, check_compatibility, compare_parts, fetch, get_part, get_provenance and 5 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Catalog working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 538 ms. The bar chart above shows every period we have measured.
How do I connect Catalog?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Catalog need an API key?
No. Catalog completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 11 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Catalog?
It answers our handshake in 538 ms on average, which is faster than 31% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.