# Stablecoin Screener & Depeg Monitor

> Stablecoin Screener & Depeg Monitor is a paid API for AI agents from www.x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns top USD-pegged stablecoins ranked by circulating market cap with live peg deviation from $1 and 1d/7d supply change — a market-wide depeg monitor and screener.

## Facts

- Endpoint: GET https://www.x402financialdata.com/stablecoins
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-screener-depeg-monitor-f2da0cfb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_avLshAiThaqmd6zJ8voF1

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-screener-depeg-monitor-f2da0cfb
```

Example prompt: Show me the top 20 stablecoins right now — I want to see which ones are depegging from $1 and how their circulating supply has changed over the last day and week.

## When to prefer this

Choose this endpoint when you need a market-wide view of stablecoin peg health and supply dynamics across multiple assets simultaneously — not for a single ticker's price. Ideal for depeg monitoring, DeFi risk dashboards, or macro stablecoin analysis. Prefer over individual coin price endpoints when you need ranking by market cap plus supply-change context in one call.

## Known failure modes

- limit parameter exceeds 25 — returns error or capped response
- DeFiLlama upstream unavailable — may return stale or error response
- Invalid query parameter type (non-integer limit) — likely 400 error
- No stablecoins data available for an unusual market condition — empty or partial response

## How this service works

Top USD-pegged stablecoins by circulating market cap, live from DeFiLlama: current peg price with deviation from $1 (a live depeg monitor), plus 1d/7d % change in circulating supply. Not ticker-specific -- a market-wide screener. Supports optional limit (default 10, max 25). $0.01/call.

## Output

A ranked list of up to 25 top USD-pegged stablecoins with: name, current peg price, deviation from $1 (live depeg indicator), 1-day % change in circulating supply, and 7-day % change in circulating supply — sourced live from DeFiLlama.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "limit": {
       "type": "integer",
       "description": "Max stablecoins to return, default 10, max 25."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoin-screener-depeg-monitor-f2da0cfb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.x402financialdata.com](https://www.zero.xyz/host/www.x402financialdata.com/llms.txt)