# Stablecoin Netflow & Peg Health Monitor

> Stablecoin Netflow & Peg Health Monitor is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Returns stablecoin supply flows, peg deviation, dominance, and liquidity trend for top stablecoins or a specified symbol set, paid via x402 USDC micropayment.

## Facts

- Endpoint: GET https://kr-x402-mvp.kgy5612.workers.dev/api/v1/smart-money/netflow?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-netflow-peg-health-monitor-6624c51e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CpwyGN0r7hWB1wwXB4GAD

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stablecoin-netflow-peg-health-monitor-6624c51e
```

Example prompt: Check stablecoin netflow and peg health for USDC and USDT — tell me the 7-day supply change, peg deviation in basis points, and whether there are any depeg alerts right now.

## When to prefer this

Use this endpoint when your agent needs stablecoin-specific intelligence — peg health, supply flows, and dominance — rather than generic token prices. Ideal for DeFi risk assessment, pre-trade liquidity checks, or stablecoin-focused portfolio monitoring. Prefer over generic market data APIs when peg deviation, netflow, and depeg alerts are the core signal. No API key setup needed; pay $0.001 USDC per call via x402 on Base.

## Known failure modes

- Payment not included or insufficient — returns HTTP 402 requiring x402 USDC payment on Base
- Invalid symbols parameter (non-existent ticker) — may return empty coins array
- top parameter out of range (must be 1–30) — returns validation error
- Data source (DefiLlama or Kraken) temporarily unavailable — stale or partial data with degraded sources list
- Network timeout on Cloudflare Worker — HTTP 5xx response

## How this service works

Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.

## Output

Returns a JSON object with per-coin data (symbol, USD price, Kraken USD price, supply in USD, peg deviation in bps, dominance %, 1d and 7d supply change %, Base chain supply), plus aggregate 7-day flow (USD + %), total stablecoin supply, liquidity trend label, a peg verdict (e.g. ALL_PEGGED), any active alerts, data sources, and an updated_at timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "top": {
       "type": "integer",
       "maximum": 30,
       "minimum": 1,
       "description": "Top N by supply when no symbols (default 10)"
      },
      "symbols": {
       "type": "string",
       "examples": [
        "USDC,USDT",
        "USDC"
       ],
       "description": "Comma-separated filter, e.g. USDC,USDT"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "coins": [
   {
    "status": "OK",
    "symbol": "USDC",
    "price_usd": 0.99948,
    "kraken_usd": 0.9999,
    "supply_usd": 71356496475,
    "peg_dev_bps": -5.2,
    "dominance_pct": 24.6,
    "supply_1d_pct": 0.089,
    "supply_7d_pct": -1.74,
    "base_supply_usd": 4100000000
   }
  ],
  "alerts": [],
  "flow_7d": {
   "pct": -0.72,
   "usd": -2100000000
  },
  "sources": [
   "https://stablecoins.llama.fi",
   "https://api.kraken.com"
  ],
  "verdict": "ALL_PEGGED",
  "updated_at": "2026-10-29T12:30:00Z",
  "liquidity_trend": "flat",
  "total_usd_stablecoin_supply": 290000000000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoin-netflow-peg-health-monitor-6624c51e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kr-x402-mvp.kgy5612.workers.dev](https://www.zero.xyz/host/kr-x402-mvp.kgy5612.workers.dev/llms.txt)