getETFInfo
Returns holdings, expense ratio, assets under management and trailing total-return performance for one ETF. Look it up by ticker, or by isin to get the fund's most-traded listing. listings lists every exchange the same fund trades on. To find or enumerate ETFs use /etfsearch or /etflist.
This record as markdown: /tools/com-api-ninjas-mcp/getetfinfo.md
What getETFInfo does on API Ninjas
AI agents call getETFInfo to retrieve information from API Ninjas 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 |
|---|---|---|---|
isin | string | — | International Securities Identification Number of the ETF (e.g., IE00B5BMR087). An ISIN identifies the fund, which may trade on several exchanges: the most-trad |
ticker | string | — | ETF ticker symbol (e.g., QQQ, SPY, VTI), including any exchange suffix (e.g. EUNL.DE). Either ticker or isin is required, not both. |
Parameters from the server's own tool schema.
Why getETFInfo is rated Low
Even though getETFInfo 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.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs getETFInfo safely
PolicyLayer is an MCP gateway: it sits between your AI agents and API Ninjas, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For getETFInfo, this is the rule to start with:
getETFInfo 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 API Ninjas, apply this rule, and every getETFInfo call is checked against it from then on.
Questions about getETFInfo
Returns holdings, expense ratio, assets under management and trailing total-return performance for one ETF. Look it up by ticker, or by isin to get the fund's most-traded listing. listings lists every exchange the same fund trades on. To find or enumerate ETFs use /etfsearch or /etflist. It is categorised as a Read tool in the API Ninjas MCP Server, which means it retrieves data without modifying state.
getETFInfo accepts 2 parameters: isin, ticker. The full parameter table on this page comes from the server's own tool schema.
Register the API Ninjas MCP server in PolicyLayer and add a rule for getETFInfo: 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 API Ninjas. Nothing to install.
getETFInfo 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 getETFInfo 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 getETFInfo. 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.
getETFInfo is provided by the API Ninjas MCP server (https://mcp.api-ninjas.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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