# Superset — WebMCP observations

Canonical: https://www.lazyweb.com/directory/webmcp/accelerators-2026-09-20/yc-31222
Updated: 2026-09-20

Native WebMCP census · September 20, 2026

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

- Roster identity: Superset · yc:31222
- Program and cohort: Y Combinator · Spring 2026
- Roster observed: 2026-09-18
- Official profile: <https://www.ycombinator.com/companies/superset>
- Listed website: <https://www.superset.sh/>
- 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.

| Context | Result | Final URL | Start | End |
| --- | --- | --- | --- | --- |
| Default Chrome | Not observed in this window | https://superset.sh/ | 2026-09-20 21:10 UTC | 2026-09-20 21:10 UTC |
| Experimental features enabled | Registration observed | https://superset.sh/ | 2026-09-20 21:34 UTC | 2026-09-20 21:34 UTC |

## Exact tool names

| Name | Default | Experimental |
| --- | --- | --- |
| `superset_install_command` | Not observed | Observed |
| `superset_open_page` | Not observed | Observed |
| `superset_product_facts` | Not observed | Observed |

## 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 `8cc00201a95fa7b3cf4189d44901d17722a5516d77ad1efba7da29bc3c3acc19`; tool frame origins: No registration observed
- Experimental features enabled: source hash `944622d699ebfedf257abdf38f6e37d547d67cc6440e55e8e9478fc0d19ae0a0`; tool frame origins: https://superset.sh

[Census directory](https://www.lazyweb.com/directory/webmcp/accelerators-2026-09-20) · [Study and methods](https://www.lazyweb.com/agent-readiness/measure-agent-distribution-without-counting-registrations) · [All row-level data](https://www.lazyweb.com/datasets/native-webmcp-census-2026-09-20.json) · [Archived WebMCP directory](https://www.lazyweb.com/webmcp)