the402 endpoint detail

← All endpoints

yieldsignal.vercel.app decision usdc-base-yield

https://yieldsignal.vercel.app/decision/usdc-base-yield

answers 402

Buyer-side MOVE/HOLD decision for USDC lending on Base: given your position (?position=), size (?amountUsd=), move cost (?moveCostUsd=) and horizon (?horizonDays=), returns whether moving to the best risk-adjusted protocol pays for itself — with expected net gain, break-even days and a confidence tier. Sells the decision, not the raw datapoint. Verified per-asset accuracy is free at /accuracy.json

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.50
Network
base
Pay to
0x561143BFE9E2D975D92e915B8EfFEAa54119472a
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
77 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:40:59.081Z (7d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fyieldsignal.vercel.app%2Fdecision%2Fusdc-base-yield"