All servers · Utilities · Marketing & SEO
Spillmark
com.spillmark/spillmark · v1.0.0
New (7 days)
Measured by MCP Station
| Last check | Reachable |
|---|---|
| Checked at | — |
| Check success 7 / 30 days | — |
| First-try success 30 days | — |
| Median response | — |
| Lookups 30 days | — |
| Authentication | No auth |
| MCP version | 2025-06-18 |
| Rank score | — |
| Declared risk | Read-only (all tools declare readOnlyHint) |
| Capabilities declared | tools |
| Tool definitions | 3 tools · with description 100% · input schema is an object 100% · read/destructive hints 100% |
Description written by the publisher, not verified
Free Amazon and Meta ads calculators. No brand data and no key.
Connect
streamable-http · https://spillmark.com/mcp
claude mcp add --transport http spillmark https://spillmark.com/mcp{
"mcpServers": {
"spillmark": {
"url": "https://spillmark.com/mcp"
}
}
}Tools as reported by the server
list_calculatorsSpillmark's free Amazon and Meta ads calculators (holdout test size, incremental ROAS, break-even ROAS, ACoS, TACoS, Amazon fees and profit, LTV and CAC), with each one's inputs and example values. Use run_calculator to run one.run_calculatorRuns one calculator from list_calculators on your numbers and returns the headline result, the supporting figures, a one-sentence reading, and a link that opens the calculator with the same inputs. Missing inputs use the calculator's example values. Enter percents as points (15 means 15%), choices ahow_lift_is_calculatedSpillmark's method in brief: how a geo holdout test measures the sales Meta ads cause on Amazon, with links to the full method and a sample report on made-up numbers.
JSON · Text for agents · Registry updated 2026-10-25