getInstitutionalHoldings

Returns an institutional manager's full 13F portfolio for a quarter. Requires cik or manager_name. For every holder of a single stock use /institutionalownership.

SERVERAPI Ninjas SOURCEhttps://mcp.api-ninjas.com/mcp

Low RISK CLASS

Category Read

Parameters 120 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/com-api-ninjas-mcp/getinstitutionalholdings.md

WHAT IT DOES

What getInstitutionalHoldings does on API Ninjas

AI agents call getInstitutionalHoldings 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
`cik`	string	—	Manager SEC Central Index Key (e.g. 1067983). Either cik or manager_name is required.
`sort`	string	—	Sort order: value (default), shares, percent_of_portfolio, or issuer_name.
`cusip`	string	—	Filter the portfolio to a single holding by CUSIP.
`limit`	integer	—	Maximum results to return. Default 50, max 1000.
`offset`	integer	—	Number of results to skip for pagination.
`period`	string	—	Quarter-end date (YYYY-MM-DD). Defaults to the latest quarter; free tier is limited to the most recent quarter.
`ticker`	string	—	Filter the portfolio to a single holding by ticker.
`group_by`	string	—	sector for a sector-allocation rollup. Business/Professional/annual plans only. Premium only.
`put_call`	string	—	put or call to filter option positions.
`max_value`	integer	—	Maximum reported market value (USD).
`min_value`	integer	—	Minimum reported market value (USD).
`change_type`	string	—	Comma-separated quarter-over-quarter filter: new, sold_out, increased, decreased, unchanged. Business/Professional/annual plans only. Premium only.

Parameters from the server's own tool schema.

RISK

Why getInstitutionalHoldings is rated Low

Even though getInstitutionalHoldings 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 signalsHigh parameter count (13 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs getInstitutionalHoldings 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 getInstitutionalHoldings, this is the rule to start with:

getInstitutionalHoldings Allowed

getInstitutionalHoldings 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": {
    "getInstitutionalHoldings": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect API Ninjas, apply this rule, and every getInstitutionalHoldings call is checked against it from then on.

FAQ

Questions about getInstitutionalHoldings

What does the getInstitutionalHoldings tool do? +

Returns an institutional manager's full 13F portfolio for a quarter. Requires cik or manager_name. For every holder of a single stock use /institutionalownership. It is categorised as a Read tool in the API Ninjas MCP Server, which means it retrieves data without modifying state.

What parameters does getInstitutionalHoldings accept? +

getInstitutionalHoldings accepts 12 parameters: cik, sort, cusip, limit, offset, period, ticker, group_by, put_call, max_value, min_value, change_type. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on getInstitutionalHoldings? +

Register the API Ninjas MCP server in PolicyLayer and add a rule for getInstitutionalHoldings: 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.

What risk level is getInstitutionalHoldings? +

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

Can I rate-limit getInstitutionalHoldings? +

Yes. Add a rate_limit block to the getInstitutionalHoldings 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 getInstitutionalHoldings completely? +

Set action: deny in the PolicyLayer policy for getInstitutionalHoldings. 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 getInstitutionalHoldings? +

getInstitutionalHoldings 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.

KEEP EXPLORING

More on API Ninjas, and thousands of servers like it.

This server

All 244 API Ninjas tools →

Across the catalogue

The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →