# Carbon & Cashmere BTC Ultimate Signal Bundle

> Carbon & Cashmere BTC Ultimate Signal Bundle is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-15).

Returns a comprehensive Bitcoin market intelligence bundle including composite scoring, anomaly detection, RSI indicators, derivatives funding regime, and ML signal accuracy in a single call.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/btc-ultimate
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/carbon-cashmere-btc-ultimate-signal-bundle-b224d806
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q5mqpjRhfIZyM0pDWU36l

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-btc-ultimate-signal-bundle-b224d806
```

Example prompt: Pull the BTC Ultimate bundle from Carbon & Cashmere — I want the composite market score, anomaly score, RSI-14, derivatives funding regime, and the best ML model accuracy right now.

## When to prefer this

Choose this endpoint when you need a single-call comprehensive Bitcoin market intelligence summary combining technical indicators, anomaly detection, ML signal accuracy, and derivatives sentiment. It is more cost-effective than calling each component separately (bundled at a discount). Prefer it over individual indicator endpoints when you want a holistic BTC market read without assembling signals manually.

## Known failure modes

- Payment not included or insufficient — 402 Payment Required
- Rate limit exceeded — 429 Too Many Requests
- Upstream data provider unavailable — 503 Service Unavailable
- Invalid API path — 404 Not Found

## How this service works

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

## Output

Returns a JSON bundle with: composite_score (0-1), anomaly_score, RSI-14 value, derivatives funding regime label (e.g. 'neutral'), best ML model accuracy, bundle name, and pricing metadata including discount percentage and component sum vs bundle price. Also includes a disclaimer that the data is informational only.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "_meta": {
   "disclaimer": "Informational research data only — not investment advice."
  },
  "pricing": {
   "discount_pct": 32,
   "bundle_price_usd": 1,
   "separate_components_sum_usd": 1.47
  },
  "components": {
   "factor": {
    "composite_score": 0.8
   },
   "anomaly": {
    "anomaly_score": 0.51
   },
   "indicators": {
    "values": {
     "rsi_14": 52.4
    }
   },
   "derivatives": {
    "funding": {
     "regime": "neutral"
    }
   },
   "signal_accuracy": {
    "best_performing_model": {
     "accuracy": 0.65
    }
   }
  },
  "bundle_name": "btc_ultimate"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/carbon-cashmere-btc-ultimate-signal-bundle-b224d806/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)