Spillmark MCP
Remote Model Context Protocol server for Spillmark: free Amazon and Meta ads calculators, and (with a read-only brand key) a brand’s own holdout-test lift, test plans, and locked predictions.
- Server URL:
https://spillmark.com/mcp(Streamable HTTP) - Homepage / docs: https://spillmark.com/agents
- Registry name:
com.spillmark/spillmark - License: MIT (this listing repo)
The product app lives elsewhere. This repository is the public listing package: server.json, install snippets, and assets for MCP directories.
Connect (public tools — no key)
Cursor (.cursor/mcp.json)
{
"mcpServers": {
"spillmark": {
"url": "https://spillmark.com/mcp"
}
}
}
Claude Code
claude mcp add --transport http spillmark https://spillmark.com/mcp
Claude / ChatGPT
Add a custom connector / MCP server with URL https://spillmark.com/mcp.
Brand tools (optional key)
Create a read-only key in Spillmark Settings → Agent access, then send:
Authorization: Bearer sm_…
No tool changes ads, budgets, or settings. Public calculators work without a key.
Categories / tags
Marketing, advertising, Amazon, Meta ads, ROAS, holdout tests, incrementality, calculators, e-commerce.
