# Carbon Cashmere Exchange Flow API

> Carbon Cashmere Exchange Flow API is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).

Returns BTC/ETH exchange inflow/outflow data including net flow in USD, exchange reserves, Z-score anomaly detection, and directional flow signal updated every 15 minutes.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/exchange-flows
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-d9b8087b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hNC1JeUH5pfwF8kpzE2XU

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-d9b8087b
```

Example prompt: What's the current exchange flow signal for BTC — is there heavy inflow, outflow, or neutral activity right now, and what's the Z-score anomaly reading?

## When to prefer this

Use this endpoint when you need near-real-time crypto exchange flow intelligence including smart money tracking, accumulation/distribution detection, or Z-score-based anomaly alerting for BTC or ETH. Prefer this over generic price feeds when the goal is understanding directional capital flows to/from exchanges rather than spot price.

## Known failure modes

- Unsupported coin symbol returns empty or error response
- Payment not completed results in 402 response
- Rate limiting or quota exceeded returns error
- Coinglass data source temporarily unavailable causing stale or missing data
- Missing required coin query parameter may return default or error

## How this service works

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

## Output

An array of exchange flow records for the requested coin (BTC or ETH) containing net flow in USD, exchange reserves, Z-score for anomaly detection, and a categorical flow signal (heavy_inflow, inflow, neutral, outflow, or heavy_outflow), updated every 15 minutes from Coinglass data.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "coin": "BTC"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "coin": "BTC",
  "data": [
   {
    "symbol": "BTC",
    "netflow_usd": -45000000,
    "netflow_signal": "outflow",
    "netflow_zscore": -1.8
   }
  ],
  "count": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-d9b8087b/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)