MCP Tool Reference Low Risk

perplexity_deep_research

Conduct an exhaustive multi-source investigation for complex topics

Part of the Perplexity MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

perplexity-mcp-server Other

WHEN AI AGENTS USE THIS TOOL

AI agents call perplexity_deep_research to perform operations in Perplexity. While the risk category is not fully classified, applying a rate limit gives you visibility into how often the tool is called and prevents unexpected bursts of activity from autonomous agents.

WHY ENFORCE A POLICY ON PERPLEXITY_DEEP_RESEARCH

Applying a policy to perplexity_deep_research gives you an audit trail of every call an AI agent makes. Even for low-risk tools, visibility into agent behaviour helps you debug issues, optimise workflows, and maintain compliance with your organisation's security requirements.

RECOMMENDED POLICY

Apply a rate limit to control usage and monitor for unexpected behaviour.

perplexity.yaml 
tools:
  perplexity_deep_research:
    rules:
      - action: allow
        rate_limit:
          max: 60
          window: 60

See the full Perplexity policy for all 2 tools.

DETAILS

Tool Name

perplexity_deep_research

Category

Other

MCP Server

Perplexity MCP Server

Risk Level

Low

MORE PERPLEXITY TOOLS

perplexity_search Other
Perform a fast search-augmented query using the Perplexity API

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collections Algolia
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usage Algolia
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RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the perplexity_deep_research tool do?

Conduct an exhaustive multi-source investigation for complex topics. It is categorised as a Other tool in the Perplexity MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on perplexity_deep_research?

Add a rule in your Intercept YAML policy under the tools section for perplexity_deep_research. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Perplexity MCP server.

What risk level is perplexity_deep_research?

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

Can I rate-limit perplexity_deep_research?

Yes. Add a rate_limit block to the perplexity_deep_research rule in your Intercept 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 perplexity_deep_research completely?

Set action: deny in the Intercept policy for perplexity_deep_research. 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 perplexity_deep_research?

perplexity_deep_research is provided by the Perplexity MCP server (perplexity-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

ENFORCE POLICIES ON PERPLEXITY

Open source. One binary. Zero dependencies.

VIEW ON GITHUB Full Perplexity policy →