Search FDA Auxiliary Datasets (NSDE, UNII, Substance, Historical).
AI agents call search_other_data to retrieve information from OpenFDA FastMCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries publicly available FDA auxiliary datasets (NSDE, UNII, Substance, Historical). It performs read-only operations on open government health data. No side effects, no data modification, no code execution, and no financial impact. The blast radius of misuse is minimal—an agent could retrieve excess data or make numerous queries, but cannot harm systems or data integrity.
From the tool's definition Tool name contains 'search' and description states 'Search FDA Auxiliary Datasets' — pure data retrieval with no modification, deletion, or execution of code.
Documented attack patterns abuse exactly the kind of access search_other_data gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OpenFDA FastMCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for search_other_data:
{
"version": "1",
"default": "deny",
"tools": {
"search_other_data": {}
}
}search_other_data is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Search FDA Auxiliary Datasets (NSDE, UNII, Substance, Historical). It is categorised as a Read tool in the OpenFDA FastMCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenFDA FastMCP Server MCP server in PolicyLayer and add a rule for search_other_data: 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 OpenFDA FastMCP Server. Nothing to install.
search_other_data 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 search_other_data 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 search_other_data. 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.
search_other_data is provided by the OpenFDA FastMCP Server MCP server (suyashekhande/openfda-semantic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OpenFDA FastMCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
12 OpenFDA FastMCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.