--- title: "Bread & Butter MCP server" url: "https://martechdb.com/vendors/bread-butter" markdown_url: "https://martechdb.com/vendors/bread-butter.md" api_url: "https://martechdb.com/api/v1/vendors/breadbutter.io" updated: "2026-10-20" --- # Bread & Butter MCP server Yes. Bread & Butter publishes an official MCP server at https://mcp.breadbutter.io. It's hosted. We last checked it on 3 Nov 2026. MartechDB lists only servers the vendor publishes itself, never community servers. **Key facts:** As of 3 Nov 2026, Bread & Butter's official MCP server scores 65/100 (provisional) on MartechDB's Agent Readiness Index (v1.1). It answered 14 of our 14 checks in the last 90 days. - Website: [breadbutter.io](https://breadbutter.io) - Categories: [Marketing attribution](https://martechdb.com/categories/marketing-attribution.md) ## Review Bread & Butter's MCP server scores 65/100 on MartechDB's Agent Readiness Index: easy to connect an AI agent to, with a few gaps. The good: - Hosted by Bread & Butter: connect by URL, with nothing to install - Documented, with what it can do known - Answered 100% of our checks in the last 90 days Not checked yet: how you sign in; what agent access costs. ## Agent Readiness Index: 65/100 (provisional) How friendly Bread & Butter is to AI agents, from its best official MCP server. Anything not yet researched scores nothing, so this score may rise once it is. Methodology v1.1: https://martechdb.com/methodology. - Official MCP server: 30/30 (Published by the vendor) - Hosted by the vendor: 25/25 (Connect by URL, nothing to install) - OAuth sign-in: pending (Sign-in: see vendor docs) - Documented tools: 10/10 (A docs page, and its tools are known) - Free to start, pay as you go: 0/15 (Not stated by the vendor) ## Bread & Butter MCP server - Address: https://mcp.breadbutter.io - Runs: Hosted - Sign-in: Sign-in: see vendor docs (`unknown`) - Official MCP Registry: not listed - Documentation: https://support.breadbutter.io/article/249-bread-butter-mcp-server - How we know it's official: Documented on Bread & Butter's own site, at support.breadbutter.io - First seen: 2026-10-20 - Last checked: 2026-11-03 - Recent checks: 7 of the last 7 reachable - Uptime: 100% (14 of 14 checks reachable since 2026-10-21) ### What it can do Tools: not known by name. The server needs sign-in before it lists them, and the vendor's documentation doesn't name them, so this is what it says the server can do ([source](https://support.breadbutter.io/article/249-bread-butter-mcp-server)), read on 2026-11-03. It may be out of date. - Leads to follow up: who came back this week, who is ready to call and why, and who is going cold. - Leads we found for you: where the Engaged Leads came from, how they raised their hand and who they are. - Report for Your Boss: one page for whoever signs off: what's interesting on your website, who was on it, what they wanted, and the few numbers that show it's working. - Attribution & Leads: which sources, campaigns and pages bring Focused visitors and Engaged Leads, all the way to the sale. - Exit Destinations: where visitors go when they leave your website, and how much business your website sends your partners. - AI Assistants & GEO: the visitors AI assistants send you, the pages they land on, and the AI crawlers reading your website. ### Connect it Claude Code: ```sh claude mcp add --transport http bread-butter https://mcp.breadbutter.io ``` - Add to Cursor: - Add to VS Code: - Claude.ai and Claude Desktop: Customize, Connectors, "+", Add custom connector, then paste https://mcp.breadbutter.io - ChatGPT: Settings, Apps, Advanced settings, turn on Developer mode, Create, then paste https://mcp.breadbutter.io (this usually works only with servers that use self-serve sign-in or none) JSON for Cursor, Windsurf and other clients that connect to hosted servers: ```json { "mcpServers": { "bread-butter": { "type": "http", "url": "https://mcp.breadbutter.io" } } } ``` ## Questions ### Does Bread & Butter have an official MCP server? Yes. Bread & Butter publishes its MCP server itself. Bread & Butter's own documentation describes it. MartechDB only lists servers a vendor publishes, never community copies. ### What is the Bread & Butter MCP server URL? The address is https://mcp.breadbutter.io. ### How do I connect Bread & Butter MCP to Claude, ChatGPT or Cursor? In Claude, add https://mcp.breadbutter.io as a custom connector (Customize, Connectors, Add custom connector). In Cursor, use the Add to Cursor link on MartechDB's page, or paste the JSON settings into your mcp.json. In Claude Code, run: claude mcp add --transport http bread-butter https://mcp.breadbutter.io ### Is the Bread & Butter MCP server in the official MCP Registry? No. Bread & Butter hasn't published it to the official MCP Registry. ### Is the Bread & Butter MCP server working? Yes. It answered our most recent check. We last checked it on 3 Nov 2026. ### What are the alternatives to Bread & Butter's MCP server? In Marketing attribution, the most agent-friendly alternatives with an official MCP server are Seal Metrics (100/100), Admetrics (100/100), Airbridge (95/100), Factors.ai (91/100) and Dreamdata (91/100). Bread & Butter scores 65/100 on the same index. ## Change history - 2026-10-20: Added to MartechDB with Bread & Butter MCP server ## Alternatives to Bread & Butter's MCP server In Marketing attribution, the most agent-friendly first: - [Seal Metrics](https://martechdb.com/vendors/seal-metrics.md) (sealmetrics.com), Agent Readiness Index 100/100 - [Admetrics](https://martechdb.com/vendors/admetrics.md) (admetrics.io), Agent Readiness Index 100/100 - [Airbridge](https://martechdb.com/vendors/airbridge.md) (airbridge.io), Agent Readiness Index 95/100 - [Factors.ai](https://martechdb.com/vendors/factorsai.md) (factors.ai), Agent Readiness Index 91/100 - [Dreamdata](https://martechdb.com/vendors/dreamdata.md) (dreamdata.io), Agent Readiness Index 91/100 ## Get this data - API: `curl https://martechdb.com/api/v1/vendors/breadbutter.io` - MCP: `claude mcp add --transport http martechdb https://martechdb.com/mcp`, then ask about Bread & Butter. - Web page: https://martechdb.com/vendors/bread-butter