# www.one21productions.com — marketing software — 2 of 5

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> Probe-verified (tier 2 of 3). Last checked 2026-09-27. 2 of 5 capability checks passed. 2 unknown.

- host: www.one21productions.com
- url: https://www.one21productions.com/
- category: marketing software
- type: business
- language: en

## Probe-verified · tier 2 of 3

Probed live on 2026-09-27 against rubric v1.2. 2 of 5 checks passed. 2 unknown.

- UNKNOWN — Markdown negotiation (`Accept: text/markdown`)
- UNKNOWN — Markdown twin at a predictable URL (`/page.md`)
- PASS — llms.txt (`/llms.txt`)
- FAIL — API catalog (`RFC 9727`)
- PASS — MCP server card answers (`/.well-known/mcp/server-card.json → tools/list`)

MCP tools (from tools/list on 2026-09-27, served from www.wixapis.com): search_catalog, lookup_catalog, get_product, create_checkout, get_checkout, update_checkout, complete_checkout, cancel_checkout

## Summary

One 21 Productions and One 21 Media provide live streaming, video production, and social media marketing services, specializing in corporate videos, music videos, real estate marketing, and electrical rewiring projects at 108th St.

## Context

567 sites in this index share the category "marketing software"; 128 are transactional.

## How we grade

- tier 1 — **Declared**: The site says agents are welcome in its robots.txt. A permission, not a capability.
- tier 2 — **Probe-verified** (this site): We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
- tier 3 — **Behaviourally verified**: An agent completed the action end to end — booked, bought, submitted — and it worked.

## About this record

Known Good probes sites live and publishes what was tested and when.
Method: https://knowngood.sh/about.md · Rubric: https://knowngood.sh/benchmark

How we found this site: probe discovery. This site didn't declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. [How we choose what to check, and how to opt out](https://knowngood.sh/bot)

## Where this sits

- business: https://knowngood.sh/type/business
- marketing software: https://knowngood.sh/category/marketing-software
- digital marketing agencies (also in): https://knowngood.sh/category/digital-marketing-agencies
- business consulting (also in): https://knowngood.sh/category/business-consulting
- wix: https://knowngood.sh/platform/wix
- Browse: https://knowngood.sh/browse
- Rubric: https://knowngood.sh/benchmark