# Stablecoin Peg Integrity Radar

> Stablecoin Peg Integrity Radar is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).

Returns current USD prices and peg-deviation flags (PEGGED, MICRO_DEPEG, DEPEG) for major stablecoins (USDT, USDC, DAI, FDUSD, PYUSD) using CoinGecko aggregate price data.

## Facts

- Endpoint: GET https://api.fadeandco.workers.dev/api/agent-intel/stablecoin-peg-integrity-radar?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-peg-integrity-radar-6e08e574
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9RxsCdqvFdE_cB_FkjBKM

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-peg-integrity-radar-6e08e574
```

Example prompt: Check the current peg status for USDT, USDC, and DAI — I want to know if any of them are deviating from $1 and whether they're flagged as MICRO_DEPEG or DEPEG right now.

## When to prefer this

Use this endpoint when you need a fast, low-cost aggregate price snapshot to detect stablecoin depeg events across USDT, USDC, DAI, FDUSD, and PYUSD. Prefer this over on-chain oracles or Curve pool checks when you need a broad market-price view rather than per-pool liquidity analysis. Not suitable when you need redemption-liquidity depth, on-chain Curve imbalance data, or per-DEX pool pricing.

## Known failure modes

- CoinGecko API rate limit or outage — endpoint may return error or stale data
- Invalid coin ID in the coins parameter — unrecognized IDs may be silently omitted or cause a 400 error
- Network timeout to CoinGecko upstream — snapshot may be unavailable
- Payment failure (402) if x402 USDC payment of $0.002 is not included or rejected

## How this service works

Pay-per-call agent intelligence, token risk, developer and AI data tools for AI agents, from public chains and public sources. Payment: x402, USDC on Base, Solana, Arc, Polygon, Arbitrum, Monad, World Chain, Optimism, Avalanche, Celo or Stellar, or RLUSD/XRP on the XRP Ledger. No signup, no API key; a failed call is not charged.

## Output

Returns a JSON array of stablecoin entries, each containing: coin ticker (e.g. USDT), CoinGecko coin ID, current USD price, deviation percentage from $1, a flag (PEGGED, MICRO_DEPEG at ≥0.15%, or DEPEG at ≥1%), and the price timestamp. Also includes the CoinGecko source URL and the snapshot timestamp. A note clarifies this is an aggregate price snapshot, not a per-pool or redemption-liquidity check.

## 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",
     "required": [],
     "properties": {
      "coins": {
       "type": "string",
       "description": "Comma list of: tether, usd-coin, dai, first-digital-usd, paypal-usd (default tether,usd-coin,dai)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Aggregate snapshot from CoinGecko. Not a per-pool or redemption-liquidity check.",
  "coins": [
   {
    "id": "tether",
    "coin": "USDT",
    "flag": "PEGGED",
    "priceUsd": 0.998954,
    "deviationPct": -0.1046,
    "priceUpdatedAt": "2026-10-23T09:34:56.000Z"
   },
   {
    "id": "usd-coin",
    "coin": "USDC",
    "flag": "PEGGED",
    "priceUsd": 0.999563,
    "deviationPct": -0.0437,
    "priceUpdatedAt": "2026-10-23T09:34:56.000Z"
   }
  ],
  "source": "https://api.coingecko.com/api/v3/simple/price",
  "checkedAt": "2026-10-23T09:35:19.633Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoin-peg-integrity-radar-6e08e574/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.fadeandco.workers.dev](https://www.zero.xyz/host/api.fadeandco.workers.dev/llms.txt)