# ccxt_fetch_open_interest_history Call exchange.fetchOpenInterestHistory(symbol, timeframe, since, limit, params). Agent View of the PolicyLayer registry record for `ccxt_fetch_open_interest_history`. HTML page: https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-fetch-open-interest-history ## Facts - Tool: `ccxt_fetch_open_interest_history` - Server: Codex CCXT MCP (`oci:ghcr.io/lucyfox199818-collab/ccxt-mcp:0.1.0`) — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp.md - Homepage: https://github.com/lucyfox199818-collab/codex-binance-agent - Risk category: Read (Low risk) - Registry record: grade F, 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": "ccxt_fetch_open_interest_history", "arguments": {} } } ``` ## Why ccxt_fetch_open_interest_history is rated Low This tool queries and retrieves open interest history data from an exchange without modifying any state. It is a passive data retrieval operation, fitting the Read category. Severity is low because misuse would only result in excessive data queries with no financial or operational harm. From the tool's own definition: "Tool name contains 'fetch' and description shows it calls 'fetchOpenInterestHistory', which retrieves historical open interest data. No mutations, deletions, or side effects mentioned." ## Use case AI agents call ccxt_fetch_open_interest_history to retrieve information from Codex CCXT MCP 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 Codex CCXT MCP: ```json { "version": "1", "default": "deny", "tools": { "ccxt_fetch_open_interest_history": {} } } ``` ## Other tools on Codex CCXT MCP (112) - `ccxt_cancel_algo_order` — Destructive — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-cancel-algo-order.md - `ccxt_cancel_all_algo_orders` — Destructive — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-cancel-all-algo-orders.md - `ccxt_cancel_all_orders` — Destructive — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-cancel-all-orders.md - `ccxt_cancel_all_orders_after` — Destructive — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-cancel-all-orders-after.md - `ccxt_call` — Execute — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-call.md - `ccxt_cancel_order` — Execute — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-cancel-order.md - `ccxt_cancel_orders` — Execute — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-cancel-orders.md - `ccxt_cancel_orders_for_symbols` — Execute — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-cancel-orders-for-symbols.md - `ccxt_set_margin_mode` — Execute — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-set-margin-mode.md - `ccxt_set_position_mode` — Execute — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-set-position-mode.md - `ccxt_add_margin` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-add-margin.md - `ccxt_create_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-order.md - `ccxt_create_order_with_take_profit_and_stop_loss` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-order-with-take-profit-and-stop-loss.md - `ccxt_create_orders` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-orders.md - `ccxt_create_post_only_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-post-only-order.md - `ccxt_create_protected_futures_entry` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-protected-futures-entry.md - `ccxt_create_reduce_only_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-reduce-only-order.md - `ccxt_create_stop_limit_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-stop-limit-order.md - `ccxt_create_stop_loss_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-stop-loss-order.md - `ccxt_create_stop_market_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-stop-market-order.md - `ccxt_create_stop_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-stop-order.md - `ccxt_create_take_profit_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-take-profit-order.md - `ccxt_create_trailing_amount_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-trailing-amount-order.md - `ccxt_create_trailing_percent_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-trailing-percent-order.md - `ccxt_create_trigger_order` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-create-trigger-order.md - `ccxt_reduce_margin` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-reduce-margin.md - `ccxt_transfer` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-transfer.md - `ccxt_withdraw` — Financial — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/ccxt-withdraw.md - `audit_analyze_cycles` — Read — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/audit-analyze-cycles.md - `audit_analyze_trading_decisions` — Read — https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp/audit-analyze-trading-decisions.md - …and 82 more: https://policylayer.com/tools/io-github-lucyfox199818-collab-ccxt-mcp.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=io-github-lucyfox199818-collab-ccxt-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-lucyfox199818-collab-ccxt-mcp