stockScreener
Discover stocks that align with your investment strategy using the FMP Stock Screener API. Filter stocks based on market cap, price, volume, beta, sector, country, and more to identify the best opportunities.
This record as markdown: /tools/cfocoder-financial-modeling-prep-mcp-server/stockscreener.md
What stockScreener does on Financial Modeling Prep
AI agents call stockScreener to retrieve information from Financial Modeling Prep 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 |
|---|---|---|---|
isEtf | boolean | — | Filter ETFs |
limit | number | — | Limit number of results |
isFund | boolean | — | Filter funds |
sector | string | — | Filter by sector (e.g., Technology) |
country | string | — | Filter by country (e.g., US) |
exchange | string | — | Filter by exchange (e.g., NASDAQ) |
industry | string | — | Filter by industry (e.g., Consumer Electronics) |
betaMoreThan | number | — | Filter companies with beta greater than this value |
betaLowerThan | number | — | Filter companies with beta less than this value |
priceMoreThan | number | — | Filter companies with price greater than this value |
priceLowerThan | number | — | Filter companies with price less than this value |
volumeMoreThan | number | — | Filter companies with volume greater than this value |
Parameters from the server's own tool schema.
Why stockScreener is rated Low
The stockScreener tool retrieves and filters market data to support research and analysis. It returns information about stocks matching specified criteria but does not create, modify, delete, or execute any financial transactions. This is a read-only query operation with no side effects on financial positions or data state.
From the tool's definition Tool performs filtering and discovery of stocks based on criteria (market cap, price, volume, beta, sector, country).
Risk signalsHigh parameter count (19 properties)
Attacks that exploit this kind of access
The rule that runs stockScreener safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Financial Modeling Prep, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stockScreener, this is the rule to start with:
stockScreener 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 Financial Modeling Prep, apply this rule, and every stockScreener call is checked against it from then on.
Questions about stockScreener
Discover stocks that align with your investment strategy using the FMP Stock Screener API. Filter stocks based on market cap, price, volume, beta, sector, country, and more to identify the best opportunities. It is categorised as a Read tool in the Financial Modeling Prep MCP Server, which means it retrieves data without modifying state.
stockScreener accepts 12 parameters: isEtf, limit, isFund, sector, country, exchange, industry, betaMoreThan, betaLowerThan, priceMoreThan, priceLowerThan, volumeMoreThan. The full parameter table on this page comes from the server's own tool schema.
Register the Financial Modeling Prep MCP server in PolicyLayer and add a rule for stockScreener: 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 Financial Modeling Prep. Nothing to install.
stockScreener 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 stockScreener 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 stockScreener. 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.
stockScreener is provided by the Financial Modeling Prep MCP server (cfocoder/financial-modeling-prep-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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