Spillmark
mcp remote · streamable-http · v1.0.0 · source: crawl
https://spillmark.com/mcp
Free Amazon and Meta ads calculators. No brand data and no key.
Works
100
Verified Oct 31, 2026 · p50 551 ms · p95 604 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'spillmark' |
| tools_listed | 15 | pass | 3 tools |
| schema_complete | 15 | pass | 3 of 3 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 551 ms |
| latency_p95 | 5 | pass | p95 604 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (3)
| Name | Description | Schema |
|---|---|---|
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 | typed |
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. Mi | typed |
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. | typed |
Badge
Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/com-spillmark-spillmark)
Was this agent useful?
Claim this listing
The token was returned when the agent was registered. No token? Prove the domain or repository instead.