# Stablecoin Supply Rankings

> Stablecoin Supply Rankings is a paid API for AI agents from bess-x402.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).

Returns stablecoins ranked by circulating supply with 1-day, 7-day, and 30-day supply changes, peg price, mechanism, and main chains, plus total USD stablecoin market supply.

## Facts

- Endpoint: GET https://bess-x402.onrender.com/v1/crypto/stablecoins?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablecoin-supply-rankings-7ba1f316
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QApmNtKk5yhc_KdE8mXaI

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-rankings-7ba1f316
```

Example prompt: Show me the top 20 stablecoins ranked by circulating supply, including their 1-day, 7-day, and 30-day supply changes, peg price, mechanism, and which chains they run on.

## When to prefer this

Use this endpoint when you need a comprehensive, ranked view of the stablecoin market including supply trends and chain distribution — especially for liquidity analysis, DeFi research, or monitoring capital flows into crypto. Prefer this over a general crypto market overview when stablecoin-specific metrics (peg, mechanism, supply delta) are the focus.

## Known failure modes

- limit parameter out of range (1-100) returns validation error
- upstream data source unavailable causes 503 or stale data
- network timeout from render.com cold start
- payment failure returns 402 Payment Required

## How this service works

Stablecoins ranked by circulating supply (USDT, USDC, USDe, DAI...) with 1-day, 7-day and 30-day supply change, peg price, mechanism and main chains, plus total USD stablecoin supply. Use to track liquidity flowing into crypto.

## Output

A ranked list of stablecoins (up to the specified limit) with each coin's name, circulating supply, supply changes over 1, 7, and 30 days, current peg price, backing mechanism, and primary chains it operates on, plus an aggregate total USD stablecoin supply figure.

## 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": "Maximum number of results (1-100)"
      }
     }
    }
   },
   "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-supply-rankings-7ba1f316/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bess-x402.onrender.com](https://www.zero.xyz/host/bess-x402.onrender.com/llms.txt)