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x402stock.vercel.app v1 treasury-yields

https://x402stock.vercel.app/api/v1/treasury-yields

answers 402

The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
362 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:30:23.596Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402stock.vercel.app%2Fapi%2Fv1%2Ftreasury-yields"