[KongchangAI]
Unverified50% confidenceFactExact time

The HTTP 402 "Payment Required" status code has long been merely a placeholder in the protocol specification—defined but almost never actually used.

1
Sources
50%
Confidence
Long-term
Relevance
10/8/2026
First Seen

Sources

Reviving HTTP 402: Letting AI Agents Pay for Data Autonomously with USDC

Related Entities

HTTP 402concept

Related Claims

UnverifiedHTTP status code 401 (Unauthorized) is the standard authentication failure response in Web APIs, indicating that the request lacks valid identity credentials or that the credentials have expired.65% similar

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