Use the People Enrichment endpoint to enrich data for 1 person
AI agents call people_enrichment to retrieve information from Apollo Io MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Data enrichment is fundamentally a read operation that queries and returns supplementary information about an entity without creating, modifying, or deleting any data. The blast radius if misused by an AI agent is limited to unauthorized data retrieval or privacy concerns about accessing personal information, which constitutes a low-severity read risk.
From the tool's definition The tool 'people_enrichment' is described as using an 'endpoint to enrich data for 1 person' — it retrieves and augments existing person data.
Documented attack patterns abuse exactly the kind of access people_enrichment gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apollo Io MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for people_enrichment:
{
"version": "1",
"default": "deny",
"tools": {
"people_enrichment": {}
}
}people_enrichment is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Use the People Enrichment endpoint to enrich data for 1 person. It is categorised as a Read tool in the Apollo Io MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Apollo Io MCP Server MCP server in PolicyLayer and add a rule for people_enrichment: 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 Apollo Io MCP Server. Nothing to install.
people_enrichment 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 people_enrichment 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 people_enrichment. 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.
people_enrichment is provided by the Apollo Io MCP Server MCP server (lkm1developer/apollo-io-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Apollo Io MCP 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.
7 Apollo Io MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.