Perplexity MCP Server (wysh3/perplexity-mcp-zerver) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 12 tools. No publisher has claimed this listing.

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D
Caution
56/100

Perplexity MCP Server

MCP web search using perplexity without any API KEYS

→ wysh3/perplexity-mcp-zerver· listed on mcp_so

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

wysh3

Source: mcp.so · also listed on github_topic

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Install from

mcp.sonot scored hereGitHubmcp.sonot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Known vulnerabilities in dependencies: 1 critical, 15 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
// tools this server exposes6 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

chat_perplexity

Automatically call this tool for interactive, conversational queries. This tool leverages Perplexitys web search capabilities to provide real-time information and maintains conversation history using an optional chat ID for contextual follow-ups.

extract_url_content

Uses browser automation (Puppeteer) and Mozilla's Readability library to extract the main article text content from a given URL. Handles dynamic JavaScript rendering and includes fallback logic. For GitHub repository URLs, it attempts to fetch structured content via gitingest.com. Performs a pre-che…

get_documentation

Automatically call this tool when working with unfamiliar APIs/libraries, needing usage examples, or checking version specifics as this can access web. Example: When adding a payment gateway, ask "Get Stripe API documentation for creating charges".

find_apis

Automatically call this tool when needing external services or real time current data (like API info, latest versions, etc.) from web. Compares options based on requirements. Example: When building a shopping site, ask "Find product image APIs with free tiers".

check_deprecated_code

Automatically call this tool when reviewing legacy code, planning upgrades, or encountering warnings with real time web access. Helps identify technical debt. Example: During code reviews or before upgrading dependencies.

search

Performs a web search using Perplexity AI based on the provided query and desired detail level. Useful for general knowledge questions, finding information, or getting different perspectives.

// known CVEs in dependencies1 critical15 high5 medium10 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@3.2.2GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.12.3GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.12.3GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.3GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highaxios@1.10.0GHSA-35jp-ww65-95wh

axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configMCP_MODE
configPERPLEXITY_BROWSER_DATA_DIR~/.perplexity-mcp Browser profile directory
configPERPLEXITY_PERSISTENT_PROFILEtrue Set to false for anonymous mode
configVITEST
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

12/12 tools missing one or more hints — chat_perplexity (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); extract_url_content (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_documentation (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +9 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Shell command execution

2 child_process calls — runs shell commands

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

Production dependencies are patched

0 critical, 15 high severity in production deps — @modelcontextprotocol/sdk@1.12.3 (high), @modelcontextprotocol/sdk@1.12.3 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dev dependencies

1 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

Dependency freshness

1/11 production deps stale: prune@2022-06-24 (4.1y)

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
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commit: 3e316abed14c28af2e4dbd1b0ce510c56b396e40
code hash: 9629aee16993213145af6cb02a560e484cf39b7d9e1aa8622d11ffe3b00e1b7f
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