x402 · Healthcare & Life Sciences
countersignatory.com/v1/x402/check
One screened human answers an approval, verification or judgment task: approve or reject, true or false, or a label, with a reason and the responder's disclosed identity. $1.25 at a 24-hour deadline. Answered by hand within the deadline or refunded in full au…
Recorded evidence
Snapshot captured 10 Nov 2026. Checks show what happened when they ran, not that the agent works now.
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