# Carbon Cashmere Quant Research Suite

> Carbon Cashmere Quant Research Suite is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.15/call, status down (last checked 2026-09-15).

Runs 5 cross-sectional and statistical analytics (rolling Pearson correlation, OLS/rolling beta-to-BTC, Engle-Granger cointegration, cross-sectional dispersion, sector rotation ranks) over a crypto pair or universe for pairs-trading and regime-shift research.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/quant-research-suite
- Price: $0.15/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-a2cdbc12
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bf3MhoEioi9RjYUgQWPBQ

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-a2cdbc12
```

Example prompt: Run the full quant research suite on ETH and BTC — I need the rolling Pearson correlation, OLS beta-to-BTC, Engle-Granger cointegration with ADF and OU half-life, cross-sectional dispersion clusters, and sector rotation ranks so I can evaluate a pairs-trading setup.

## When to prefer this

Use this endpoint when you need a bundled set of 5 statistical and cross-sectional crypto analytics in a single call at a discount ($0.40 vs $0.52 separate). Ideal for pairs-trading research, regime-shift detection, and stat-arb strategy development where you need cointegration, correlation, beta, dispersion, and rotation data together. Prefer over individual endpoints when cost efficiency and comprehensive analytics in one response matter.

## Known failure modes

- invalid or unrecognized ticker symbols return an error
- unsupported asset pair or universe too large returns a parameter error
- insufficient historical data for requested window causes computation failure
- service temporarily unavailable returns 5xx error
- missing required pair/universe parameter returns 400 bad request

## How this service works

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

## Output

Returns 5 analytics modules: (1) rolling Pearson correlation between the pair/universe, (2) OLS and rolling beta-to-BTC, (3) Engle-Granger cointegration result with ADF statistic and Ornstein-Uhlenbeck half-life, (4) cross-sectional volatility and cluster assignments, and (5) sector rotation ranks. All results are for informational/research purposes only, not investment advice.

## 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": 23,
   "bundle_price_usd": 0.4,
   "separate_components_sum_usd": 0.52
  },
  "components": {
   "rotation": {
    "top_gainers": []
   },
   "dispersion": {
    "cross_sectional_vol": 0.009
   },
   "beta_to_btc": {
    "beta": 1.21
   },
   "cointegration": {
    "is_cointegrated_at_5pct": false
   },
   "rolling_correlation": {
    "current_correlation": 0.91
   }
  },
  "bundle_name": "quant_research_suite"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-a2cdbc12/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)