Spillmark

com.spillmark/spillmarkVersion 1.0.1

Read-only Amazon profit, fee, ACoS, and geo-holdout MCP tools for Claude, ChatGPT, and agents.

Status

Responds161 msNov 14, 2026, 14:16 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:16 UTC
Latency: 161 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 21:12 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://spillmark.com/mcpResponds161 msNov 14, 2026, 14:16 UTC

No sign-in

Claude Code

claude mcp add --transport http spillmark https://spillmark.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: spillmark
Remote MCP server URL: https://spillmark.com/mcp

Cursor

{
  "mcpServers": {
    "spillmark": {
      "url": "https://spillmark.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"spillmark","type":"http","url":"https://spillmark.com/mcp"}'

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Tools

3 tools

Tools of Spillmark
	Description		Read-only	Idempotent	Open world
`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.	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.	Not declared	Yes	Not declared	No
`list_calculators`Spillmark's free Amazon and Meta ads calculators (holdout test size, brand-size MDE, geo holdout states, ad waste, Meta ROAS reality check, 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.	Spillmark's free Amazon and Meta ads calculators (holdout test size, brand-size MDE, geo holdout states, ad waste, Meta ROAS reality check, 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.	Not declared	Yes	Not declared	No
`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 example values. Enter percents as points (15 means 15%), choices as the option index.	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 example values. Enter percents as points (15 means 15%), choices as the option index.	Not declared	Yes	Not declared	No

Details

Registry status: Active
Published: Nov 6, 2026
Updated: Nov 6, 2026
Website: https://spillmark.com/uses/amazon-ads-mcp⁠ (opens in a new tab)
Repository: https://github.com/burmanharry/spillmark-mcp⁠ (opens in a new tab)
Categories (suggested): E-commerceSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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