Crescendo Lab MCP server

Which servers in the official MCP registry are Crescendo Lab's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-19

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Whose server it is

Registry namecom.cresclab.catalog/ai-catalogverified in the MCP registry

The registry name sits under cresclab.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-19

Stateanswerschecked 2026-10-19
Tools3
Server calls itselfai-catalog
Server version1.0.0
Protocol version2025-06-18

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 218 ms.

Measured dailydaily checks: 1, the first on 2026-10-19

Answeredmeasuring1 of the 7 daily checks it takes to print a share
Median first answer265 ms
Space in an agent's context≈ 386 tokensthe definitions of all its tools (3), which an agent carries on every turn
Tool definitionsA · 100 of 100

Every tool passes all six checks.

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work.

Tools it offers3 tools · read 2026-10-19

scan_product_feed
Fetch a public product feed once and score how well AI shopping assistants can understand it (0-100). Returns the biggest gaps (share of products affected), sample shopper questions AI could not answer from the feed, the thinnest…
get_feed_fix_guide
Explain what a gap from scan_product_feed means, why AI shopping assistants need that data, and how to fix it with evidence the merchant already owns. Call with no argument to get the full checklist.
list_ai_shopping_platforms
List the main AI shopping surfaces and how product data reaches each one (e.g. Google Merchant Center for Gemini / AI Mode / Shopping; ChatGPT merchant program). Overview only, not a list of live integrations.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "ai-catalog": {
      "type": "http",
      "url": "https://catalog.cresclab.com/api/mcp/"
    }
  }
}

Other servers listed as Crescendo Lab's

com.cresclab.caacgo/mcpanswers, requires sign-inverified in the MCP registry

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.