mudpie

Native WebMCP census · September 20, 2026

CopyCat AI — WebMCP observations

Tools observed on the website listed for CopyCat AI, with default and experimental browser contexts shown separately.

Roster identity
CopyCat AI · yc:30338
Program and cohort
Y Combinator · Winter 2025
Roster observed
2026-09-18
Official profile
Official directory entry
Listed website
https://runcopycat.com
Browser
153.0.8010.50

Observation windows

The experimental mode enabled WebMCP and WebMCPTesting. Both modes used fresh logged-out contexts and a 1.5-second settled observation window.

Captured context, result and time in UTC
ContextResultFinal URLStart / end
Default ChromeNot observed in this windowhttps://www.runcopycat.com/2026-09-20T21:20:23.628Z
2026-09-20T21:20:25.682Z
Experimental features enabledRegistration observedhttps://www.runcopycat.com/2026-09-20T21:44:07.646Z
2026-09-20T21:44:09.873Z

Exact tool names

Names reported by the browser registration event
NameDefaultExperimental
find_copycat_solutionNot observedObserved
show_copycat_demo_schedulerNot observedObserved
show_copycat_sample_proposalsNot observedObserved

Evidence limits

Passive homepage observation only. No tool was invoked. Registration does not establish execution, product quality, task success or adoption. A tool absent from one window may appear in another context.

Names and metadata describe exposed interfaces. They do not prove that a tool performs the named action or belongs to the company’s core product rather than a hosting platform.

Default Chrome source hash
ee1c5acb3fc20f4e5c790794fe23cacdee7922aeaca4f4593cbdea317f675840
Default Chrome tool frame origins
No registration observed
Experimental features enabled source hash
b8d8ad365e76eea1628927cde8e66ac6cd51cfb16409ec6dd3ca04087f8c7c11
Experimental features enabled tool frame origins
https://www.runcopycat.com

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