About MartechDB
The only list of martech MCP servers that vendors publish themselves.
MartechDB tracks which marketing technology vendors publish an official MCP server, the connector that lets AI assistants like Claude and ChatGPT use a product directly. For each one we record where it runs and how you sign in.
marketing technology vendors checked
registry entries reviewed
vendors with an official server
official servers listed
01
What MartechDB is
Marketing teams increasingly work through AI assistants and agents. Those agents connect to tools like HubSpot, Semrush or Webflow through MCP (Model Context Protocol) servers. Once a server is connected, the agent can read your data and act in that product for you.
MartechDB answers the questions you have before connecting one:
Does this vendor publish an MCP server? Checked against the live server, not a blog post or a directory listing.
Where does it run? Hosted at a web address you connect to, or a package you install and run yourself.
How do I sign in? Self-serve sign-in (OAuth), a client the vendor has to register for you, an API key, or no sign-in.
02
Why we built it
We build Growth Method, which connects marketing teams' tools to AI agents. We needed a full list of official marketing MCP servers, so we went looking for one. It didn't exist.
Here is what we found instead:
General MCP directories list tens of thousands of servers of every kind, official or not. Marketing is a small, poorly labelled corner of them.
"Best MCP servers for marketers" articles pick 7 to 15 well-known names.
Vendor catalogs list only the servers that work with their own product.
Industry research had already counted more than 29,000 MCP servers across registries, but nobody published the martech ones as a directory. Nobody separated the servers vendors publish from the ones anyone else wrote, or showed which you could connect without a sales call.
So we built the list ourselves, starting from the vendors.
It's free and independent. Vendors can't pay to be listed, ranked or featured, and that includes the tools Growth Method works with. A listing changes only when the evidence does.
03
How it's different
Most directories wait for server authors to submit a listing. We start from more than 10,000 marketing technology vendors and check each one for a server.
Connecting a server gives an AI agent access to your team's data. So we list only servers the vendor publishes itself. A "HubSpot MCP server" written by someone else isn't included, however popular it is.
73% of the official servers listed here aren't in the official MCP Registry. We find them by checking vendors' own websites, so you don't have to.
A server counts only if it answers a real MCP handshake, or asks for sign-in through a complete, valid OAuth setup. Ordinary web pages and catch-all responses are ruled out, as are platform-wide servers like the one Shopify adds to every store.
Hosted or local, and self-serve sign-in or not. That decides whether a team can connect a tool in minutes, or needs credentials from the vendor first.
Servers describe what they do ("tasks", "issues", "automations"), not who uses them. Searching for marketing keywords missed a third of the tools marketers rely on. Matching by vendor name doesn't.
Every number comes with how it was found and how sure we are. Servers we can't confirm as official are left out rather than counted.
04
How the data is built
Three methods, each catching servers the others miss:
|
Method
|
What it finds
|
Found, Oct 2026
|
|---|---|---|
| Live check | Hosted servers at the addresses vendors use, like mcp.vendor.com, tested on every vendor's domain | 1,374 |
| Registry, by domain | Official MCP Registry entries published under the vendor's own domain | 738 |
| Registry, by name | Registry entries naming a vendor, each checked by AI to confirm the vendor published it | 113 |
The counts above are from our first research pass in October 2026. Before anything is listed we drop servers published by someone other than the vendor and merge duplicates, which leaves 1,662 official servers across 1,552 vendors today. Almost all are hosted: 1,574 can be connected over the web, against 117 you install yourself.
05
What we haven't caught yet
We tested the data against a hand-built list of well-known marketing MCP servers, and it found about three-quarters of them. The ones it missed fall into three groups:
Unusual addresses. Servers that are in no registry and live at an address we can't guess.
Very common names. Vendors such as Google and GitHub match thousands of unrelated servers, so we check them by hand.
Vendors we don't track yet. Some useful tools aren't in our vendor list yet.
So more martech companies publish an official MCP server than the 1,552 listed here, and the number grows every week. We're closing the gap vendor by vendor.