x402 census · mcp.barker.money · 17831bf75f2a · JSON

GET /barker_market_trend

unprobed

Barker's historical APY trend for stablecoins vs. US Treasury benchmark over a lookback window (7–180 days). Use for 'DeFi vs treasury', 'is stablecoin APY going up', 'crypto yield trend', '稳定币利率走势'.

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://mcp.barker.money/barker_market_trend

Method GET

Price $0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts eip155:196, eip155:1, eip155:137, eip155:42161

payTo 0x83f15f5bea445109e255ab82622fbdfecd1e4c9f

Seller mcp.barker.money

Catalogs cdp (row updated 2026-09-30)

Listed since (lower bound) 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-30

CDP quality counters 25 calls and 2 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags Barker

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 4

Payments 6

USDC volume $0.02

Median payment $0.001

First / last payment 2026-07-27 / 2026-09-27

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x83f15f5bea445109e255ab82622fbdfecd1e4c9f

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "days": 30
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "data": {
    "days": 30,
    "stablecoin_apy_series": [
     {
      "apy": 0.045,
      "date": "2026-04-21"
     }
    ],
    "treasury_benchmark_series": [
     {
      "apy": 0.0438,
      "date": "2026-04-21"
     }
    ]
   },
   "success": true
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://mcp.barker.money/barker_market_trend' -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/17831bf75f2a/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"17831bf75f2a"} 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 mcp.barker.money.