# Carbon & Cashmere Signal API – AI Assistant

> Carbon & Cashmere Signal API – AI Assistant is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-14).

Returns real-time crypto market intelligence including price, Fear & Greed index, market regime classification, and a composite market score with a plain-language recommendation.

## Facts

- Endpoint: POST https://api.carbon-cashmere.de/v1/ai/assistant
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/carbon-cashmere-signal-api-ai-assistant-2b67c0c0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-nPGQulSEhN-QXaTqTLVs

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 carbon-cashmere-signal-api-ai-assistant-2b67c0c0 -d '<json body>'
```

Example prompt: What's the current market signal for Bitcoin — is it in accumulation or distribution, what's the Fear and Greed score, and should I be dollar-cost averaging right now?

## When to prefer this

Choose this endpoint when you need a single, opinionated, human-readable crypto market intelligence summary that combines price, sentiment (Fear & Greed), regime classification, and a scored recommendation in one call — especially when the user wants a plain-language signal or DCA guidance rather than raw OHLCV data or on-chain metrics.

## Known failure modes

- Ambiguous or empty context string returns a generic or unhelpful response
- Payment not included or insufficient USDC results in 402 Payment Required
- Unsupported cryptocurrency ticker in context may yield no specific data
- Service downtime or upstream data feed failure returns 5xx error
- Rate limiting may occur under high request volume

## How this service works

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

## Output

A JSON object containing a human-readable message (e.g. 'BTC at $84,250 in distribution regime. F&G at 28 (Fear). Market score 46/100. Consider DCA.') alongside structured market_data with regime classification (accumulation/distribution), current USD price, Fear & Greed index value, and a composite market score out of 100.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "context": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "message": "BTC at $84,250 in distribution regime. F&G at 28 (Fear). Market score 46/100. Consider DCA.",
  "market_data": {
   "regime": "distribution",
   "price_usd": 84250,
   "fear_greed": 28,
   "market_score": 46
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-signal-api-ai-assistant-2b67c0c0/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)