# Stablecoin Supply, Price & Peg Deviation API

> Stablecoin Supply, Price & Peg Deviation API is a paid API for AI agents from task-radar-x402.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-31).

Returns top stablecoins ranked by supply, with current price and peg deviation flags sourced from DefiLlama

## Facts

- Endpoint: GET https://task-radar-x402.vercel.app/api/stablecoins?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-supply-price-peg-deviation-api-f61eb1ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OKD7PmIEdkosHjO7YonUe

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-supply-price-peg-deviation-api-f61eb1ac
```

Example prompt: Pull the top 20 stablecoins by supply right now and flag any that are deviating from their peg — I want to know if anything major is depegging.

## When to prefer this

Use this endpoint when you need a real-time ranked overview of the stablecoin market including supply data and peg health signals, powered by DefiLlama. Prefer this over general crypto price APIs when peg deviation monitoring is specifically needed, or when you want supply-ranked stablecoin data rather than just spot prices.

## Known failure modes

- Invalid limit parameter (outside 1-50 range) may return an error or be clamped
- DefiLlama upstream outage may result in stale or unavailable data
- Payment failure on Base network blocks the call
- Rate limiting if many calls are made in rapid succession

## How this service works

Top stablecoins: supply, price and peg deviation flags (DefiLlama). 0.01 USDC/call on Base.

## Output

Returns a ranked list of stablecoins (up to the requested limit, default 20) including each coin's name, circulating supply, current price, and a peg deviation flag indicating whether the stablecoin is trading significantly off its target peg value.

## 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": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "limit": {
       "type": "string",
       "description": "Max coins 1-50 (default 20)"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablecoin-supply-price-peg-deviation-api-f61eb1ac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from task-radar-x402.vercel.app](https://www.zero.xyz/host/task-radar-x402.vercel.app/llms.txt)