the402 endpoint detail

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api.lastlookdata.com derived policy-spread

https://api.lastlookdata.com/api/derived/policy-spread

payable

LastLook Data — EFFR vs IORB spread. Shows where the effective Fed funds rate trades relative to interest on reserves.

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
0xB4848d1b4b7E31B75b9b30d717F89777dC65D68e
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
253 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:11:34.025Z (1d ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.lastlookdata.com%2Fapi%2Fderived%2Fpolicy-spread"