get_substance_by_sid_pcp

THE RISK

Low Risk

Why get_substance_by_sid_pcp needs a policy

This tool retrieves chemical substance data from PubChem by substance identifier (SID). It has no side effects, does not modify data, execute code, delete records, or involve financial transactions. It is a straightforward read operation against a public biomedical database, consistent with other query tools on this server (clinvar_query_*, depmap_get_*).

From the tool's definition The tool description states 'Get a Substance object by SID' which is a retrieval operation. The verb 'Get' and the context of querying PubChemPy (a chemistry database) for substance information indicates pure data retrieval with no modification, creation,…

Documented attack patterns abuse exactly the kind of access get_substance_by_sid_pcp gives an agent:

POLICY

How to control get_substance_by_sid_pcp

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_substance_by_sid_pcp:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_substance_by_sid_pcp": {}
  }
}

get_substance_by_sid_pcp is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register OrigeneMCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

Roll out MCP under one policy → Per-person scoped tokens, one central policy, and full audit across every server your team connects.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about get_substance_by_sid_pcp

What does the get_substance_by_sid_pcp tool do? +

Get a Substance object by SID using PubChemPy. It is categorised as a Read tool in the OrigeneMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_substance_by_sid_pcp? +

Register the Origene MCP server in PolicyLayer and add a rule for get_substance_by_sid_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.

What risk level is get_substance_by_sid_pcp? +

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

Can I rate-limit get_substance_by_sid_pcp? +

Yes. Add a rate_limit block to the get_substance_by_sid_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.

How do I block get_substance_by_sid_pcp completely? +

Set action: deny in the PolicyLayer policy for get_substance_by_sid_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.

What MCP server provides get_substance_by_sid_pcp? +

get_substance_by_sid_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.

Enforce policy on every OrigeneMCP tool call.

Start from OrigeneMCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →