Level 1
Unpaid structural proof
This proof checks that the endpoint returns a valid unpaid MPP challenge and that the challenge can be parsed and normalized by the registry.
n/ade76b4dd-2...92d8698872Docker MCP Registry · Public certification
The MCP remote is live, but unauthenticated initialize handshakes are currently blocked by auth.
POST /sse
Level 1 confirms that the endpoint speaks MPP correctly before payment. Level 2 confirms that the registry actually paid the endpoint and received a successful response.
Level 1
This proof checks that the endpoint returns a valid unpaid MPP challenge and that the challenge can be parsed and normalized by the registry.
n/ade76b4dd-2...92d8698872Level 2
This proof shows whether the registry actually paid the endpoint and received a successful post-payment response, using the stored receipt and payment reference as auditable evidence.
n/an/an/aProviders can embed this badge directly in docs, status pages, or changelogs. The link points back to this certification page so agents and humans can inspect the proof details.
Unpaid probe · 644 occurrence(s)
The provider flow is usable, but at least one documented workflow step still relies on docs-only metadata.