# get_correlations

Get cross-asset correlation matrix — BTC vs ETH, SOL, Gold, DXY over 7d and 30d windows. $0.01

Agent View of the PolicyLayer registry record for `get_correlations`. HTML page: https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-correlations

## Facts

- Tool: `get_correlations`
- Server: Crypto Intelligence (`https://api.carbon-cashmere.de/mcp/sse`) — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence.md
- Homepage: https://github.com/Nedeljko87/Carbon-Cashmere
- Risk category: Read (Low risk)
- Registry record: grade D, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `coins` | string | no | Comma-separated coins (e.g. BTC,ETH,SOL) |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_correlations",
    "arguments": {}
  }
}
```

## Why get_correlations is rated Low

This tool queries and returns historical correlation data between cryptocurrency and commodity assets. There is no modification, execution of external logic, deletion, or financial transaction involved—only data retrieval. The $0.01 cost is a query fee, not a financial commitment or movement of funds.

From the tool's own definition: "Tool name 'get_correlations' and description 'Get cross-asset correlation matrix' indicate a retrieval operation with no side effects. The output is a read-only matrix of correlation data across multiple assets over time windows."

## Use case

AI agents call get_correlations to retrieve information from Crypto Intelligence without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Crypto Intelligence:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_correlations": {}
  }
}
```

## Other tools on Crypto Intelligence (103)

- `run_backtest` — Execute — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/run-backtest.md
- `run_strategy_test` — Execute — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/run-strategy-test.md
- `ask_assistant` — Financial — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/ask-assistant.md
- `get_decisions` — Financial — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-decisions.md
- `get_analytics_bundle` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-analytics-bundle.md
- `get_anomalies` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-anomalies.md
- `get_anomaly_coin` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-anomaly-coin.md
- `get_anomaly_history` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-anomaly-history.md
- `get_beta_to_btc` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-beta-to-btc.md
- `get_bittensor` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-bittensor.md
- `get_bittensor_epoch` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-bittensor-epoch.md
- `get_bittensor_tao` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-bittensor-tao.md
- `get_bittensor_validators` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-bittensor-validators.md
- `get_blocks` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-blocks.md
- `get_btc_fee_market` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-btc-fee-market.md
- `get_btc_onchain` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-btc-onchain.md
- `get_btc_rbf_pulse` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-btc-rbf-pulse.md
- `get_btc_ultimate` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-btc-ultimate.md
- `get_btc_whales` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-btc-whales.md
- `get_chain_activity` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-chain-activity.md
- `get_chart_vision` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-chart-vision.md
- `get_coin_days` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-coin-days.md
- `get_coin_research` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-coin-research.md
- `get_cointegration` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-cointegration.md
- `get_consensus` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-consensus.md
- `get_conviction` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-conviction.md
- `get_crypto_news` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-crypto-news.md
- `get_daily_report` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-daily-report.md
- `get_decision_pack` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-decision-pack.md
- `get_defi_yields` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-defi-yields.md
- …and 73 more: https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=de-carbon-cashmere-api-crypto-intelligence · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/de-carbon-cashmere-api-crypto-intelligence