Agent Exchange x402 census and directory

x402 census · yieldprobe.com · ffd872a5fdf0 · JSON

GET /mcp

unprobed

Every depegged USD stablecoin plus the largest by supply, with price deviation and 1d/7d supply change. $0.002 per call.

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

FieldValue
URLhttps://yieldprobe.com/mcp
MethodGET
Price$0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xF74E262d2472528Ba7Fa19BDE6d9FbcC088796c3
Selleryieldprobe.com
Catalogspayai (row updated 2026-09-24)
Listed since (lower bound)2026-09-24 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-24
CDP quality countersnot in the CDP catalog
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsyieldprobe · defi, mcp, x402

Unpaid probe (census of )

FieldValue
Probenot 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)

FieldValue
Distinct payers2
Payments18
USDC volume$0.04
Median paymentn/a
First / last payment2026-09-23 / 2026-09-28
Sampler-shaped share of paymentsn/a
Payers that are not samplersn/a
Sourceblockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total
Address0xF74E262d2472528Ba7Fa19BDE6d9FbcC088796c3

Declared input and output (extensions.bazaar)

{
 "input": {
  "type": "mcp",
  "example": {
   "threshold": 0.005
  },
  "toolName": "stablecoin_peg_monitor",
  "transport": "streamable-http",
  "description": "Every depegged USD stablecoin plus the largest by supply, with price deviation and 1d/7d supply change. $0.002 per call.",
  "inputSchema": {
   "type": "object",
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "properties": {
    "full": {
     "type": "boolean",
     "description": "Return every tracked coin (large)"
    },
    "limit": {
     "type": "integer",
     "maximum": 200,
     "minimum": 1,
     "description": "Largest stablecoins to include, default 20"
    },
    "threshold": {
     "type": "number",
     "description": "Abs deviation from 1.0 to flag, default 0.005"
    },
    "minCirculating": {
     "type": "number",
     "description": "USD floor, default 1e7"
    }
   },
   "additionalProperties": false
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://yieldprobe.com/mcp' -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/ffd872a5fdf0/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"ffd872a5fdf0"} 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: PayAI listing status · this record as JSON · all resources on yieldprobe.com.