# get_interest_rate_history

Get historical borrowing interest rates

Agent View of the PolicyLayer registry record for `get_interest_rate_history`. HTML page: https://policylayer.com/tools/aadarshvelu-derive-mcp/get-interest-rate-history

## Facts

- Tool: `get_interest_rate_history`
- Server: Derive MCP Server (`aadarshvelu/derive-mcp`) — https://policylayer.com/tools/aadarshvelu-derive-mcp.md
- Homepage: https://github.com/aadarshvelu/derive-mcp
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- 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_interest_rate_history",
    "arguments": {}
  }
}
```

## Why get_interest_rate_history is rated Low

This tool retrieves historical financial data from the Derive public API without modifying, deleting, executing code, or committing financial transactions. The 'get' prefix and 'history' scope confirm it is a read-only query. Even in a financial context, passive access to market data poses minimal risk—the severity is low because misuse cannot cause irreversible damage, execute arbitrary operations, or move funds.

From the tool's own definition: "Tool name is 'get_interest_rate_history' and description states 'Get historical borrowing interest rates' — a pure retrieval operation with no side effects."

## Use case

AI agents call get_interest_rate_history to retrieve information from Derive MCP Server 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 Derive MCP Server:

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

## Other tools on Derive MCP Server (14)

- `get_all_currencies` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-all-currencies.md
- `get_all_instruments` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-all-instruments.md
- `get_currency` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-currency.md
- `get_funding_rate_history` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-funding-rate-history.md
- `get_instrument` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-instrument.md
- `get_latest_signed_feeds` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-latest-signed-feeds.md
- `get_liquidation_history` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-liquidation-history.md
- `get_margin` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-margin.md
- `get_option_settlement_history` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-option-settlement-history.md
- `get_spot_feed_history` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-spot-feed-history.md
- `get_spot_feed_history_candles` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-spot-feed-history-candles.md
- `get_statistics` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-statistics.md
- `get_ticker` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-ticker.md
- `get_tickers` — Read — https://policylayer.com/tools/aadarshvelu-derive-mcp/get-tickers.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`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=aadarshvelu-derive-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/aadarshvelu-derive-mcp