# Foundry Stablecoin Market Data

> Foundry Stablecoin Market Data is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).

Returns circulating supply, peg type, and current price for major stablecoins given a symbol or 'top' for the largest ones.

## Facts

- Endpoint: POST https://minty-sprout.onrender.com/v1/stablecoins?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/foundry-stablecoin-market-data-78ce6a01
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B-R9YJutD0jA3SBXJcdir

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 foundry-stablecoin-market-data-78ce6a01 -d '<json body>'
```

Example prompt: What's the current circulating supply and peg price for USDC right now?

## When to prefer this

Use this endpoint when you need real-time stablecoin-specific data such as peg status, price deviation from $1, or circulating supply — especially for USDC, USDT, DAI, USDS, or the top stablecoins by market cap. Prefer this over general crypto price APIs when the peg type and circulating supply together are needed in one call.

## Known failure modes

- Unknown symbol returns empty or error response
- 'top' keyword may return a fixed or limited list of stablecoins
- Price data may be slightly delayed depending on DefiLlama refresh rate
- Malformed or empty input may return a validation error

## How this service works

Stablecoin market data: circulating supply, peg and price for the largest stablecoins. Input: a symbol like 'USDC' or 'top'.

## Output

A JSON object with a 'source' field (DefiLlama) and a 'stablecoins' array, each entry containing the stablecoin's name, symbol, peg type (e.g. 'peggedUSD'), current market price (float near 1.0 for USD-pegged coins), and circulating supply in USD.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "maxLength": 8000,
   "description": "A stablecoin symbol or 'top'"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "source": "DefiLlama",
  "stablecoins": [
   {
    "peg": "peggedUSD",
    "name": "Tether",
    "price": 0.9994755781296781,
    "symbol": "USDT",
    "circulating_usd": 179697837226
   },
   {
    "peg": "peggedUSD",
    "name": "USD Coin",
    "price": 1.000027180637924,
    "symbol": "USDC",
    "circulating_usd": 71875364543
   },
   {
    "peg": "peggedUSD",
    "name": "Sky Dollar",
    "price": 1.000618732814875,
    "symbol": "USDS",
    "circulating_usd": 6401837745
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/foundry-stablecoin-market-data-78ce6a01/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from minty-sprout.onrender.com](https://www.zero.xyz/host/minty-sprout.onrender.com/llms.txt)