Catalog MCP Server

by avva Your server? Claim it

answering

Catalog is answering right now. Last checked 15 min ago. It exposes 2 tools.

Search Avva for an expert, then connect their model - judgment from real past decisions.

Uptime history 16 days of history · worst day 99%

16 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

980 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.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add catalog --transport http https://avva.chat/mcp-catalog

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "catalog": {
      "url": "https://avva.chat/mcp-catalog"
    }
  }
}

~/.codex/config.toml

[mcp_servers.catalog]
url = "https://avva.chat/mcp-catalog"

.cursor/mcp.json

{
  "mcpServers": {
    "catalog": {
      "url": "https://avva.chat/mcp-catalog"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "catalog": {
      "url": "https://avva.chat/mcp-catalog"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

fetch

fetch

Full catalog card for one expert by id (their slug), including the MCP connector URL your agent connects to consult them. Read-only.

search

Find published experts by domain, decision types, or wording. Returns result ids for fetch. Read-only.

Endpoints

URL	Transport	State	Latency	Checked
https://avva.chat/mcp-catalog	streamable-http	answering	634 ms	15 min ago

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Catalog — questions

Answers built from our own checks of this server.

What can Catalog do?

It exposes 2 tools, read directly from the server on our last check. Among them: fetch, search. 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 980 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 2 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 980 ms on average, which is faster than 9% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.