Disclosures & methodology

Every grade on this page comes from a scripted probe of the resource's live HTTP response, graded against these checks: reachable (no bot-wall/timeout), returns_402 (HTTP 402 on an unauthenticated request), valid_json_challenge (a real x402 challenge, not just any parseable body), challenge_in_body, x402_version, accepts_complete, network_caip2, input_schema, and discovery_doc (does /.well-known/x402 list this exact resource). The paid Conformance Report additionally checks settlement_completeness and sweeps every other resource the discovery doc lists. Score = checks passed (warn = half credit) ÷ checks run. Grade bands: A ≥97%, B ≥85%, C ≥70%, D ≥50%, below that is F. Run the same checks live: x402 Doctor (run your own URL free, any time, and see the same checks fire).

Think a grade is wrong? Email stelardigital@stelardigital.com with the URL and what you found. Corrections are dated ("CORRECTED <date>, was: <original>") and the original finding is preserved, never silently edited.

Every grade on this page comes from a scripted probe of the resource's live HTTP response, graded against these checks: reachable (no bot-wall/timeout), returns_402 (HTTP 402 on an unauthenticated request), valid_json_challenge (a real x402 challenge, not just any parseable body), challenge_in_body, x402_version, accepts_complete, network_caip2, input_schema, and discovery_doc (does /.well-known/x402 list this exact resource). The paid Conformance Report additionally checks settlement_completeness and sweeps every other resource the discovery doc lists. Score = checks passed (warn = half credit) ÷ checks run. Grade bands: A ≥97%, B ≥85%, C ≥70%, D ≥50%, below that is F. Run the same checks live: x402 Doctor (run your own URL free, any time, and see the same checks fire).

Think a grade is wrong? Email stelardigital@stelardigital.com with the URL and what you found. Corrections are dated ("CORRECTED <date>, was: <original>") and the original finding is preserved, never silently edited.

Every grade on this page is Stelar Digital's opinion of how the named endpoint performed against our published, versioned test protocol, on the date(s) shown. We are not a government agency, standards body, or accreditation authority, and no grade here is an attestation, guarantee, endorsement, or a statement that any transaction with this endpoint will be safe, reliable, or complete.

Each grade is derived solely from the disclosed, reproducible checks described in Methodology above, run at the timestamp shown — we do not rely on undisclosed information or third-party complaints. No fee, ad purchase, or accreditation relationship of any kind affects any score. We investigate and correct factual errors; the correction channel is in Methodology above, and corrections are dated with the original finding preserved, never silently edited.

This page and its grades are provided "as is," without warranty of any kind, express or implied, and reflect a snapshot in time that may not reflect current conditions. Nothing on this page is financial, legal, or investment advice, and nothing here is a recommendation to transact, or not transact, with any business or endpoint.