mudpie

Native WebMCP census · September 20, 2026

Nine Fives — WebMCP observations

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

Roster identity
Nine Fives · yc:31366
Program and cohort
Y Combinator · Spring 2026
Roster observed
2026-09-18
Official profile
Official directory entry
Listed website
https://ninefives.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 ChromeRegistration observedhttps://ninefives.com/2026-09-20T21:10:05.305Z
2026-09-20T21:10:08.143Z
Experimental features enabledRegistration observedhttps://ninefives.com/2026-09-20T21:34:09.462Z
2026-09-20T21:34:12.521Z

Exact tool names

Names reported by the browser registration event
NameDefaultExperimental
browse_storeObservedObserved
cancel_cartObservedObserved
get_cartObservedObserved
get_productObservedObserved
manage_ordersObservedObserved
proceed_to_checkoutObservedObserved
search_catalogObservedObserved
search_shop_policies_and_faqsObservedObserved
show_variantObservedObserved
update_cartObservedObserved

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
6b4a5b4959917b7d1e33780bbd605572060299075b2764a23efe0d134743e856
Default Chrome tool frame origins
https://ninefives.com
Experimental features enabled source hash
8dc3dbbb7666ba237e96d1e68367edff37d850e9a0f8e182a53bc2a31677d66b
Experimental features enabled tool frame origins
https://ninefives.com

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