Get a list of Substance objects by name using PubChemPy.
AI agents call get_substances_by_name_pcp to retrieve information from OrigeneMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a straightforward lookup query against PubChem's substance database. It retrieves and returns data without any side effects, modification of data, code execution, or destructive operations. The blast radius of misuse is minimal—at worst, an agent could make many queries, but this represents a read-only information retrieval function consistent with the Read category.
From the tool's definition Tool description states 'Get a list of Substance objects by name' which is a pure retrieval operation with no modification, deletion, or execution capability. Uses PubChemPy to query public chemical substance data.
Documented attack patterns abuse exactly the kind of access get_substances_by_name_pcp gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OrigeneMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_substances_by_name_pcp:
{
"version": "1",
"default": "deny",
"tools": {
"get_substances_by_name_pcp": {}
}
}get_substances_by_name_pcp is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get a list of Substance objects by name using PubChemPy. It is categorised as a Read tool in the OrigeneMCP MCP Server, which means it retrieves data without modifying state.
Register the Origene MCP server in PolicyLayer and add a rule for get_substances_by_name_pcp: 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 OrigeneMCP. Nothing to install.
get_substances_by_name_pcp 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 get_substances_by_name_pcp 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 get_substances_by_name_pcp. 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.
get_substances_by_name_pcp is provided by the Origene MCP server (gentel-lab/origenemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OrigeneMCP, 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.
439 OrigeneMCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.