the402 endpoint detail

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yieldsignal.vercel.app durability weth-base-yield

https://yieldsignal.vercel.app/durability/weth-base-yield

answers 402

How much of the WETH lending APY on Base survives if incentives stop — same contract as the USDC durability route, for WETH. Undecomposable sources are named, never assumed incentive-free. Stress test of current readings, not a date forecast. Verified per-asset accuracy is free at /accuracy.json; raw on-chain attestations at /track-record.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.25
Network
base
Pay to
0x561143BFE9E2D975D92e915B8EfFEAa54119472a
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
182 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:40:58.597Z (6d ago)
Category
finance-crypto

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