Catalog MCP server

Catalog is an MCP server with 2 tools an agent can call, among them fetch, search. It answers at https://avva.chat/mcp-catalog over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 11 of 11 times since 3 September 2026; the last check, on 19 October 2026, succeeded.

Status

Answering

Tools

Official

yes, served from avva.chat

Reliability

11 of 11 checks

Response time

706 ms

Transport

streamable HTTP

Last checked

19 October 2026

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

Description as the publisher wrote it.

The 2 tools Catalog offers

Tool	What it does
`fetch`	Full catalog card for one expert by id (their slug), including the MCP connector URL your agent connects to consult them. Read-only. Inputs: id
`search`	Find published experts by domain, decision types, or wording. Returns result ids for fetch. Read-only. Inputs: query

Add Catalog to your AI client

Every block below points at https://avva.chat/mcp-catalog. Pick your client and copy.

Claude Code: one command in your terminal

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

Claude Desktop: claude_desktop_config.json

{
  "mcpServers": {
    "catalog": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://avva.chat/mcp-catalog"]
    }
  }
}

Cursor: ~/.cursor/mcp.json, or .cursor/mcp.json in a project

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

VS Code and GitHub Copilot: .vscode/mcp.json

{
  "servers": {
    "catalog": {
      "type": "http",
      "url": "https://avva.chat/mcp-catalog"
    }
  }
}

Zed: Zed settings.json

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

Windsurf: ~/.codeium/mcp_config.json

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

JetBrains AI Assistant: Settings, Tools, AI Assistant, MCP, New MCP Server, as JSON

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

Continue: .continue/mcpServers/neuronto.yaml

name: Catalog
version: 0.0.1
schema: v1
mcpServers:
  - name: Catalog
    type: streamable-http
    url: https://avva.chat/mcp-catalog

Gemini CLI: ~/.gemini/settings.json

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

Codex CLI: MCP server config

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

Warp: MCP servers, + Add, paste JSON

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

Goose: a one-click extension link

goose://extension?url=https%3A%2F%2Favva.chat%2Fmcp-catalog&type=streamable_http&id=catalog&name=Catalog

Is Catalog up right now?

It answered our last check on 19 October 2026 in 706 ms. Over 11 checks since 3 September 2026 it answered 11. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Catalog

Search2 tools Agent Commerce0 tools Catalog0 tools Buy My Agent6 tools Agent Commons4 tools Hive Consult4 tools

Questions about Catalog

Is there an official Catalog MCP server?

Yes. It is published by avva.chat and served from avva.chat, the vendor's own domain: https://avva.chat/mcp-catalog.

How many tools does Catalog have?

2, as returned by the server's own tools/list on 3 September 2026: fetch, search.

Is Catalog down?

It answered our last check on 19 October 2026 in 706 ms. Over 11 checks since 3 September 2026 it answered 11.

How do I add Catalog to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://avva.chat/mcp-catalog. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does Catalog need an API key?

It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.

Where this comes from

Publisher: chat.avva. Endpoint host: avva.chat. ARD identifier: urn:air:chat.avva:mcp:catalog. First indexed 3 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.

Is this your server? Get a message the day it stops answering or its tools change: monitoring, 14 days free. Or claim the domain to manage how it is listed.