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BriefVerzenden.nl

www.briefverzenden.nl · visit site →

Probe-verified · tier 2 · checked 26 Sep 2026

Dutch online service to send physical letters by uploading PDFs or using letter templates; prints and posts letters within 24 hours, including registered mail with proof of delivery, no account needed.

customer support softwareNLcustomer-support-software

What we tested

Probed live on 26 Sep 2026 against rubric v1.2. 2 of 5 checks passed. 2 unknown.

PROBE-VERIFIEDtier 2 of 3
?Markdown negotiationAccept: text/markdown · unknown
✓llms.txt/llms.txt
—API catalogRFC 9727
✓MCP server card answers/.well-known/mcp/server-card.json → tools/list

What its MCP server offers

We connected, ran tools/list, and recorded what came back on 26 Sep 2026. 5 tools.

landenprijsdocumentbestellenstatus

What an agent could do here

Read from the page’s own content, with the wording each was drawn from. Inference is kept separate from tested facts — an agent completing the action is tier 3.

UNVERIFIED
buy“”
https://www.briefverzenden.nl/
order“”
https://www.briefverzenden.nl/

Context

82 sites in the index share the category customer support software. 21 transactional sites share it.

How we grade

Three tiers. Every listing shows which one it has reached, and when. The rubric.

tier 1
Declared
The site says agents are welcome in its robots.txt. A permission, not a capability.
✓
tier 2
Probe-verified
We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
this site · 26 Sep 2026
tier 3
Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
coming
Own this site?

1 check did not pass when we last looked: API catalog. Each is a small, specific fix; the rubric says exactly what we look for.

Behavioural verification — an agent completing your booking, purchase or contact flow end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.

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Record generated from a live database query. Method: about the index.

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 →