# Carbon Cashmere Mean-Reversion Analytics

> Carbon Cashmere Mean-Reversion Analytics is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns z-score distances from 20/50/200-bar moving averages, Ornstein-Uhlenbeck half-life, and reversion probability for a specified cryptocurrency

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/mean-reversion/:coin
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-fd3077cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5vCyNuqhLi2rXwh-2GR1d

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-fd3077cd
```

Example prompt: What are the z-scores to the 20, 50, and 200-bar moving averages for ETH right now, and how many days is the Ornstein-Uhlenbeck half-life — basically how stretched is it from equilibrium and how fast does it typically revert?

## When to prefer this

Use this endpoint when you need quantitative mean-reversion statistics for a specific cryptocurrency — particularly when evaluating whether a coin is statistically stretched from its moving averages and how quickly it historically reverts. Prefer this over trend endpoints (which use ADX) when the research question is about equilibrium distance and reversion speed rather than trend direction or strength.

## Known failure modes

- Unsupported coin ticker returns 400 or 422 — only 34 specific coins are supported
- Payment not included or insufficient triggers 402 Payment Required
- Coin parameter missing from path returns 400
- Temporary upstream data unavailability returns 503
- Rate limiting may return 429 for high-frequency callers

## How this service works

Mean-reversion analytics — z-score to 20/50/200-bar MAs, Ornstein-Uhlenbeck half-life in days (AR(1) regression on log prices), reversion probability (2-sided normal CDF). Identifies coins stretched from equilibrium and speed of mean reversion. Informational research data — not investment advice.

## Output

Returns mean-reversion analytics for the requested coin including z-score distances from 20/50/200-bar moving averages, Ornstein-Uhlenbeck half-life in days (derived from AR(1) regression on log prices), and a two-sided normal CDF reversion probability indicating how likely the coin is to revert toward its mean.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-fd3077cd/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)