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Perplexity MCP Server

Perplexity MCP Server

Python MCP server that exposes Perplexity Sonar Chat Completions to any MCP client (Cursor, Claude Desktop, custom agents).

Tools

Tool

Default model

Purpose

perplexity_search

sonar-pro

General web search

perplexity_deep_research

sonar-deep-research

Comprehensive synthesis

Both tools accept optional Sonar parameters and return JSON:

{
  "answer": "...",
  "citations": ["https://..."],
  "search_results": [],
  "model": "sonar-pro",
  "usage": {}
}

Optional parameters

Parameter

Values / format

When to use

temperature

02 (default 0.2)

Lower = more focused; raise only for more varied phrasing

max_tokens

1128000

Cap answer length; omit for API default

search_recency_filter

hour | day | week | month | year

News / “latest” questions; omit for evergreen topics

search_after_date_filter

MM/DD/YYYY

Absolute start of publication window

search_before_date_filter

MM/DD/YYYY

Absolute end of publication window

search_domain_filter

up to 20 domains; allowlist or -domain denylist (not mixed)

Trusted sources only, or exclude noisy sites

search_mode

web | academic | sec

Papers (academic), SEC filings (sec); omit for general web

model

sonar | sonar-pro | sonar-deep-research | sonar-reasoning-pro

Override tool default only when you need a different speed/depth tradeoff

Prefer date filters over search_recency_filter when the window is known exactly. Queries are capped at 4,000 characters. The API key is never logged or returned in tool output.

Related MCP server: Perplexity Web-Search MCP

Setup

  1. Copy env template and add your Perplexity API key:

cp .env.example .env
  1. Install with uv:

uv sync

Run locally (stdio)

uv run mcp-perplexity

Cursor / Claude Desktop

Add to your MCP config (adjust the project path):

{
  "mcpServers": {
    "perplexity": {
      "command": "uv",
      "args": ["--directory", "C:/Users/KozakJ/git/mcp_perplexity", "run", "mcp-perplexity"],
      "env": {
        "PERPLEXITY_API_KEY": "pplx-your-api-key-here"
      }
    }
  }
}

Or rely on a .env file in the project directory (PERPLEXITY_API_KEY=...).

Run with Podman (streamable HTTP)

podman compose needs a compose provider (podman-compose or Docker Compose). On a plain Podman install, use build + run:

podman build -t mcp-perplexity .
podman run --rm -p 8000:8000 --env-file .env ^
  -e MCP_TRANSPORT=streamable-http ^
  -e MCP_HOST=0.0.0.0 ^
  -e MCP_PORT=8000 ^
  --name mcp-perplexity mcp-perplexity

(On bash/zsh, replace ^ with \.)

If you have a compose provider installed (pip install podman-compose, or Docker Compose):

podman compose up --build

Endpoint: http://localhost:8000/mcp (Streamable HTTP). Bind to trusted networks only — this image does not add HTTP auth.

Configuration

Variable

Default

Description

PERPLEXITY_API_KEY

(required)

Perplexity API key

MCP_TRANSPORT

stdio

stdio or streamable-http

MCP_HOST

127.0.0.1

HTTP bind host

MCP_PORT

8000

HTTP bind port

PERPLEXITY_RPM

30

Soft client-side requests/minute limit

PERPLEXITY_MAX_CONCURRENCY

2

Max concurrent API calls

PERPLEXITY_SEARCH_TIMEOUT

60

Search timeout (seconds)

PERPLEXITY_DEEP_RESEARCH_TIMEOUT

180

Deep research timeout (seconds)

PERPLEXITY_MAX_RETRIES

3

Retries on 429/5xx and transport errors

Retries use exponential backoff (honors Retry-After when present). Logging goes to stderr only so stdio JSON-RPC stays clean.

A
license - permissive license
-
quality - not tested
C
maintenance

Maintenance

Maintainers
Response time
Release cycle
Releases (12mo)
Commit activity

Resources

Unclaimed servers have limited discoverability.

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