Behavioural verification

Every site in the index is probe-verified: we fetched it, read what it exposes, and dated what we found. Behavioural verification goes one step further and tests that the thing an agent would actually try to do works.

This is a waitlist, not a purchase. Behavioural verification is not open yet. You can join the queue for a specific site from that site's report page. No price is set and nothing is for sale today. There is currently 1 site on the list.

What it means

A probe-verified listing says: this site declares an MCP server, negotiates markdown, or publishes an API catalogue, and those endpoints answered when we checked. A behaviourally verified listing says something stronger: we drove the exposed capability end to end with a declared test identity and it completed.

What the report contains

• The capability tested, and the exact request and response shape.
• The date and result of every attempt, including failures.
• What was not tested, stated plainly, so the gap is visible.

Consent and test identities

We do not behaviourally test a site without the operator's agreement. Testing uses a declared test identity that identifies itself as ours; we never place a real order, never complete a payment, and never use a real person's details. A site can withdraw at any time and the report comes down.

Our probe honours robots.txt and never checks a site declaring ai-input=no. The routes for opting out entirely are at /bot.

Joining the queue

Open the report for the site you care about and use the waitlist form there, or email hello@knowngood.sh. We will tell you honestly where you are.