the402 endpoint detail

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signals.nsgoods.org regime changed

https://signals.nsgoods.org/regime/changed

answers 402

Market-regime state (RISK_ON / RISK_OFF) from a provable chain, plus whether it changed since the regime you last saw. Cheap poll endpoint for AI agents to react to regime flips (USDC on Base).

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.02
Network
base
Pay to
0xc87a06DEE4c0E85912296002617120BBfd5EF990
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
183 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:31:03.843Z (2d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fsignals.nsgoods.org%2Fregime%2Fchanged"