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Model Context Protocol

Ask Your AI About Your Own Stack

General AI assistants can tell you what a CDP is. They cannot tell you what your CDP costs, when it renews, or what it is connected to. Connect one to Stack Builder and it can.

Get your server URL See every tool

Read-only. Included with Consultant, Team and Enterprise plans.

Four steps, once

No API keys to rotate, no tokens to paste into a config file. You sign in and approve, the same as any other connector.

  1. 1

    Copy your server URL

    In Stack Builder, open Settings → Connections. Your MCP server URL is there, along with the switch for agreement access.

  2. 2

    Add it as a connector

    In Claude Desktop: Settings → Connectors → Add custom connector, and paste the URL. ChatGPT, Codex and any other MCP client use the same one.

  3. 3

    Sign in and approve

    You sign in with your Stack Builder account and approve access on a consent screen. Nothing is shared until you do.

  4. 4

    Ask about your stack

    "List my workspaces" is the place to start — every other tool takes an id from there.

What you can ask

You do not name tools. You ask a question and the assistant picks them.

“Which vendors in my CDP Rollout stack talk to each other, and how?”

Consultant

Returns the vendors with their categories and roles, plus every data-flow connection between them.

“What does that stack cost per month, and what renews in the next 90 days?”

Consultant

Per-vendor monthly and annual cost, the total, and the renewal dates behind it.

“Summarise the vendors I have under evaluation and what each RFI is asking for.”

Consultant

Your RFI evaluations with their vendors, use case, brief, timeline, budget and status.

“What change proposals are open on this team, and which are blocked?”

Team

Proposals with status, change type, priority, due date and affected nodes.

“Which contracts have a notice period shorter than 60 days?”

Enterprise

Agreement metadata — commercial terms, SLA, dates, renewals. Never the document text.

“Find customer data platforms that mention identity resolution.”

Any plan

Searches vendor names and descriptions in the catalog for a keyword. No stack required.

Every tool on the server

Twelve, all read-only. Nothing is hidden behind a vague “and more”.

Tool What it returns Plan
list_workspaces Your personal and team workspaces, each with its plan and what it unlocks. Any plan
search_vendors Catalog search: a keyword matched against vendor names and descriptions. Any plan
get_vendor One vendor: category, description, website, headquarters, parent company. Any plan
list_stacks Stacks in a workspace with vendor and connection counts. Consultant
get_stack One stack in full: vendors, roles, data-flow connections, summary stats. Consultant
get_stack_costs Per-vendor and total cost, plus upcoming renewals. Consultant
list_rfis Your RFI evaluations: vendors, use case, timeline, budget, status. Consultant
get_rfi One RFI in full: company, vendors, use case, brief, timeline, budget, status. Consultant
list_proposals Change proposals: title, status, type, priority, due date. Team
get_proposal One proposal in full: description, affected nodes, resolution, implementation status. Team
list_agreements Agreement metadata: vendor, type, status, value, dates, renewal. Enterprise
get_agreement One agreement: commercial terms, SLA, security posture, data protection, legal clauses. Enterprise

What it deliberately cannot do

Connecting an AI assistant to procurement data is a decision your security team will have an opinion about. Here is the shape of the answer.

Read-only, with no exceptions

Every tool is annotated read-only and there is no write path. An assistant cannot create, edit, delete or share anything in your account — the worst a bad prompt can do is ask a question.

Your permissions, not new ones

Row-level security applies to every request. The connection sees exactly what your own account sees and nothing beyond it — joining a workspace or leaving one changes what the assistant can read, immediately.

The documents stay here

Agreement tools return structured fields: values, dates, notice periods, and the clause text our extraction pulled out (liability, termination, governing law and similar). The uploaded file and its full text are never sent to an AI client.

Agreements are off until you say so

Even on Enterprise, agreement access starts disabled. You turn it on per account in Settings → Connections, and you can turn it off again without touching the connector.

One workspace per call

Tools take a workspace id and answer for that workspace alone. Nothing bleeds between your personal work and a client team.

More detail on how the platform handles your data is on the security page.

Frequently Asked Questions

What is MCP?
The Model Context Protocol is an open standard for connecting AI assistants to external systems. Instead of pasting screenshots or exports into a chat, the assistant queries the source directly — in this case your own stacks, vendors, costs and procurement records in Martech Stack Builder.
Which AI clients work with it?
Any MCP-capable client. Claude (desktop and web), ChatGPT and Codex are the ones we test against, and they all take the same server URL as a custom connector.
Which plan do I need?
Consultant, Team or Enterprise. Anyone can sign in and list their workspaces, but stack, cost and procurement tools stay locked on Free and Pro. Cost and RFI tools need Consultant, proposals need Team, and agreements need Enterprise plus an explicit opt-in.
Can the assistant change my diagrams?
No. Every tool is read-only and there is no write tool in the server at all. The connection can answer questions about your stack; it cannot alter it.
Does it send my vendor contracts to the AI?
Not the documents. Agreement tools return structured fields — vendor, value, contract dates, renewal terms and the clause text our extraction pulled out — and never the file or its full text. Your AI client does receive those fields. The access is off by default and has to be switched on per account.
Where do I find the server URL?
In the app, under Settings → Connections. It is shown there rather than published here so there is one place to look and one place to update.
How do I disconnect?
Remove the connector in your AI client, the same way you added it. You can also revoke agreement access on its own from Settings → Connections and leave the rest of the connection in place.

Your stack, in the assistant you already use

Connect it once and ask what your architecture costs, what renews next, and how your tools connect, without exporting anything.

Open Stack Builder See pricing

No credit card required. Free plan available.