searchISIN
Easily search and retrieve the International Securities Identification Number (ISIN) for financial securities using the FMP ISIN API. Find key details such as company name, stock symbol, and market capitalization associated with the ISIN.
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What searchISIN does on Financial Modeling Prep (FMP) Server
AI agents call searchISIN to retrieve information from Financial Modeling Prep (FMP) Server 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 | — | The ISIN number to search for |
Parameters from the server's own tool schema.
Why searchISIN is rated Low
searchISIN performs a data lookup operation to find securities information. It retrieves static reference data (ISIN, company name, symbol, market cap) with no side effects, no data modification, and no financial transactions. This is a straightforward Read category tool. Severity is low because misuse would only expose public market data, not compromise accounts or enable unauthorized financial actions.
From the tool's definition Tool description explicitly states it 'search and retrieve' ISIN data and 'Find key details such as company name, stock symbol, and market capitalization.' These are read-only query operations that retrieve existing financial data without modification or…
Attacks that exploit this kind of access
The rule that runs searchISIN safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Financial Modeling Prep (FMP) Server , and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For searchISIN, this is the rule to start with:
searchISIN 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 (FMP) Server , apply this rule, and every searchISIN call is checked against it from then on.
Questions about searchISIN
Easily search and retrieve the International Securities Identification Number (ISIN) for financial securities using the FMP ISIN API. Find key details such as company name, stock symbol, and market capitalization associated with the ISIN. It is categorised as a Read tool in the Financial Modeling Prep (FMP) Server MCP Server, which means it retrieves data without modifying state.
searchISIN accepts 1 parameter: isin. The full parameter table on this page comes from the server's own tool schema.
Register the Financial Modeling Prep (FMP) Server MCP server in PolicyLayer and add a rule for searchISIN: 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 (FMP) Server . Nothing to install.
searchISIN 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 searchISIN 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 searchISIN. 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.
searchISIN is provided by the Financial Modeling Prep (FMP) Server MCP server (imbenrabi/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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