# Carbon Cashmere Stablecoin Supply Flows

> Carbon Cashmere Stablecoin Supply Flows is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status down (last checked 2026-09-14).

Returns top stablecoin supply changes over 1d/7d/30d windows, tracking 50 stablecoins with hourly snapshots and delta rankings by absolute change, growth percentage, or current size.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/stablecoin-flows
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-eb775ee4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__k0G-3-mpK4HdaOBWbS1H

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 api-carbon-cashmere-de-eb775ee4
```

Example prompt: Show me the top 10 stablecoins ranked by absolute supply change over the last 7 days — I want to see which ones are expanding or contracting the most to gauge crypto market risk sentiment.

## When to prefer this

Use this endpoint when you need timely, pre-aggregated stablecoin supply deltas across the top 50 stables without building your own DefiLlama pipeline. Ideal for crypto macro research, risk-on/off proxies, de-peg early warning, and stablecoin migration tracking. Prefer this over raw DefiLlama queries when you want hourly snapshot deltas already computed and ranked.

## Known failure modes

- Invalid window parameter — only 1d, 7d, 30d accepted
- top-N value out of range (max 50 stablecoins tracked)
- Invalid sort metric — must be absolute delta, growth %, or current size
- Data lag if hourly snapshot pipeline is delayed
- Payment failure or insufficient USDC balance for x402 micropayment

## How this service works

Professional crypto market intelligence. Real-time prices, signals, and market scoring.

## Output

A ranked list of top stablecoins (up to N) with their current supply, previous snapshot supply, absolute delta, and growth percentage over the selected window (1d/7d/30d), sortable by absolute change, growth rate, or size — useful for macro sentiment analysis and de-peg risk detection.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "stats": {
   "avg_growth_pct": 0.42,
   "total_delta_usd": 1240000000,
   "stables_returned": 20,
   "total_circulating_usd": 297830000000
  },
  "filter": {
   "sort": "abs_delta",
   "top_n": 20,
   "window": "week"
  },
  "stables": [
   {
    "name": "USD Coin",
    "symbol": "USDC",
    "n_chains": 151,
    "delta_usd": 673000000,
    "growth_pct": 0.87,
    "peg_mechanism": "fiat-backed",
    "circulating_usd": 78020000000
   },
   {
    "name": "Tether",
    "symbol": "USDT",
    "n_chains": 126,
    "delta_usd": 103000000,
    "growth_pct": 0.054,
    "peg_mechanism": "fiat-backed",
    "circulating_usd": 189630000000
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-eb775ee4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.carbon-cashmere.de](https://www.zero.xyz/host/api.carbon-cashmere.de/llms.txt)