get_ticker

Get current price, volume, bid/ask for an instrument

SERVERDerive MCP Server SOURCEaadarshvelu/derive-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/aadarshvelu-derive-mcp/get-ticker.md

WHAT IT DOES

What get_ticker does on Derive MCP Server

AI agents call get_ticker 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.

RISK

Why get_ticker is rated Low

This tool queries and retrieves current ticker information (price, volume, bid/ask spreads) from a public financial data API. It has no side effects, does not modify data, execute commands, delete information, or move funds. The severity is low because misuse would only expose publicly available market data that the user could access directly through the Derive API.

From the tool's definition Tool description states 'Get current price, volume, bid/ask for an instrument' - retrieves read-only market data with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_ticker safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Derive MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_ticker, this is the rule to start with:

get_ticker Allowed

get_ticker is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_ticker": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Derive MCP Server, apply this rule, and every get_ticker call is checked against it from then on.

FAQ

Questions about get_ticker

What does the get_ticker tool do? +

Get current price, volume, bid/ask for an instrument. It is categorised as a Read tool in the Derive MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_ticker? +

Register the Derive MCP Server MCP server in PolicyLayer and add a rule for get_ticker: 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 Derive MCP Server. Nothing to install.

What risk level is get_ticker? +

get_ticker is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_ticker? +

Yes. Add a rate_limit block to the get_ticker 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.

How do I block get_ticker completely? +

Set action: deny in the PolicyLayer policy for get_ticker. 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.

What MCP server provides get_ticker? +

get_ticker is provided by the Derive MCP Server MCP server (aadarshvelu/derive-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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