Spillmark
com.spillmark/spillmark · v1.0.0 · MCP 2025-11-25
Free Amazon and Meta ads calculators. No brand data and no key.
Reachability
reachable
checked 2026-10-26 05:30 UTC
Registry status active
Tools pinned 3
ad66ebdaec41
Tools last changed
unchanged since first capture 2026-10-26
Provenance
Registry namespace com.spillmark
(domain verified by the official registry)
Remote endpoints
https://spillmark.com/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-10-26 05:30 | first capture | 3 tools pinned |
Pinned tool definitions (3)
| Tool | Description |
|---|---|
| list_calculators | Spillmark'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_calculator | Runs 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... |
| how_lift_is_calculated | Spillmark'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. |
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