x402 census · api.marketintelligenceapi.com · 2ec8e9888b87 · JSON

GET /api/v1/rates/defi-spread

unprobed

Use to compare DeFi and TradFi dollar yields. Returns USDC supply and borrow APR on Aave v3 across five chains, read on chain, against the 3-month T-bill, with the spread and what it says about on-chain leverage demand.

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://api.marketintelligenceapi.com/api/v1/rates/defi-spread

Method GET

Price $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts eip155:137, eip155:42161, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, eip155:480

payTo 0x48d5A78d480B4C32dE319C2aEF69e682Dc304615

Seller api.marketintelligenceapi.com

Catalogs cdp (row updated 2026-09-28)

Listed since (lower bound) 2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-28

CDP quality counters 2 calls and 2 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags Market Intelligence API · rates, defi-yield, aave, stablecoins, treasuries

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 2

Payments 5

USDC volume $0.03

Median payment $0.005

First / last payment 2026-09-17 / 2026-09-30

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x48d5A78d480B4C32dE319C2aEF69e682Dc304615 (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "averageSpreadBps": -92,
   "averageUsdcSupplyAprPercent": 3.32,
   "markets": [
    {
     "chain": "base",
     "protocol": "aave_v3",
     "spreadVs3mBillBps": -27,
     "supplyAprPercent": 3.97,
     "variableBorrowAprPercent": 4.89
    }
   ],
   "signal": "TREASURY_PREMIUM",
   "treasury3mPercent": 4.24
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.marketintelligenceapi.com/api/v1/rates/defi-spread' -H 'accept: application/json'

The catalog declares GET. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/2ec8e9888b87/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"2ec8e9888b87"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.marketintelligenceapi.com.