get_perp_markets
chainpeek: List Hyperliquid perpetual markets with mark, oracle, open interest and volume. For funding history use get_funding_rates. Returns the Hyperliquid perp market list: mark, oracle, premium, open interest, 24 h volume and change, max leverage, funding; filter by symbols, sort, limit. Hype...
This record as markdown: /tools/dev-tanod-tanod/get-perp-markets.md
What get_perp_markets does on Tanod
AI agents call get_perp_markets to retrieve information from Tanod without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
sort | string | — | volume (24 h, default), open_interest, funding, premium, leverage, change (24 h) or symbol. |
limit | integer | — | Rows returned, 1-250 (default 50). |
order | string | — | desc (default) or asc. |
symbols | object | — | Optional: only these perps (case-insensitive, at most 50). Unknown names are listed in symbols_not_found. |
Parameters from the server's own tool schema.
Why get_perp_markets is rated Low
Even though get_perp_markets only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs get_perp_markets safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Tanod, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_perp_markets, this is the rule to start with:
get_perp_markets is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Tanod, apply this rule, and every get_perp_markets call is checked against it from then on.
Questions about get_perp_markets
chainpeek: List Hyperliquid perpetual markets with mark, oracle, open interest and volume. For funding history use get_funding_rates. Returns the Hyperliquid perp market list: mark, oracle, premium, open interest, 24 h volume and change, max leverage, funding; filter by symbols, sort, limit. Hyperliquid perps only; cached up to 60 s; open interest USD = coins x mark. Data only, not trading advice. Bad input is a 422 (not charged). Typically 0.3-2 s. Price: USD 0.002. Free: 10 chain reads per IP per UTC day. Docs: https://tanod.dev/learn/ethereum-base-chain-data-mcp-server.html. It is categorised as a Read tool in the Tanod MCP Server, which means it retrieves data without modifying state.
get_perp_markets accepts 4 parameters: sort, limit, order, symbols. The full parameter table on this page comes from the server's own tool schema.
Register the Tanod MCP server in PolicyLayer and add a rule for get_perp_markets: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Tanod. Nothing to install.
get_perp_markets is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_perp_markets rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_perp_markets. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_perp_markets is provided by the Tanod MCP server (https://tanod.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Tanod, and thousands of servers like it.
This server
Across the catalogue