MCP Perplexity Server
A MCP Perplexity API server written in Typescript with stdio and SSE transport support.
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Source: mcp.so
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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.
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.
ask_perplexityDisclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
MCP_PERPLEXITY_API_KEYENTER_YOUR_PERPLEXITY_API_KEYMCP_PERPLEXITY_DEFAULT_MODELThe perplexity default model to use. Default is sonar-pro.MCP_PERPLEXITY_MODELSComma separated list of models to use. Default is sonar,sonar-pro.MCP_PERPLEXITY_TOOL_DESCRIPTION_SUFFIXThe suffix to use for the tool description. Empty by default.MCP_SSE_AUTH_HEADER_KEYThe auth header key to use for SSE. Default is Authorization.MCP_SSE_AUTH_HEADER_VALUE- =Bearer some_token_which_is_required # enables optional bearer authentication against the MCP server with hard coded valueMCP_SSE_ENDPOINTThe endpoint to use for SSE. Default is /sse.MCP_SSE_PORTThe port to use for SSE. Default is 8080.MCP_TRANSPORTexport =stdio # optional, stdio is defaultTool 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
1/1 tools missing one or more hints — ask_perplexity (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). 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.
Tool inputs are validated
Only 0/1 tool handlers declare input schemas (0%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 0/1 tool handlers wrap calls in try/catch (0%)
Wrap each tool handler body in try/catch and return a structured error response.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.7.0 (high), @modelcontextprotocol/sdk@1.7.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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