# get_btc_fee_market

Bitcoin fee market analytics: current mempool fee-tier expectations (1/3/6/12/24/144 block confirmation) combined with historical fee percentiles over last N blocks (10th/25th/50th. $0.10

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

## Facts

- Tool: `get_btc_fee_market`
- 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: 0
- Recommended policy verdict: Allowed

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

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

## Why get_btc_fee_market is rated Low

This tool queries and returns analytical data about Bitcoin transaction fees and mempool conditions. It performs no writes, executions, deletions, or financial transactions—only retrieves and aggregates publicly available blockchain statistics for informational purposes. The 'get_' prefix and analytical nature confirm it is a Read operation.

From the tool's own definition: "Tool name 'get_btc_fee_market' and description 'Bitcoin fee market analytics: current mempool fee-tier expectations..."

## Use case

AI agents call get_btc_fee_market 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_btc_fee_market": {}
  }
}
```

## 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_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_correlations` — Read — https://policylayer.com/tools/de-carbon-cashmere-api-crypto-intelligence/get-correlations.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