MCP Server

Local

web-researcher

Runs locally to provide web search, data retrieval, and scraping capabilities via multiple providers (Brave, Exa, Serper, Tavily, SearchAPI, Google Custom Search, SearXNG). Supports patent, academic, and government data sources. Requires API keys for most providers.

data-engineering

Add to Your Project

Copy this JSON into your .mcp.json to enable this server

Add to your .mcp.json:

{
  "mcpServers": {
    "web-researcher": {
      "command": "web-researcher-mcp",
      "env": {
        "CACHE_DIR": "${CACHE_DIR:-}",
        "LOG_LEVEL": "${LOG_LEVEL:-info}",
        "LOG_FORMAT": "${LOG_FORMAT:-}",
        "CHROME_PATH": "${CHROME_PATH:-}",
        "EXA_API_KEY": "${EXA_API_KEY:-}",
        "SEARXNG_URL": "${SEARXNG_URL:-}",
        "FRED_API_KEY": "${FRED_API_KEY:-}",
        "PUBMED_EMAIL": "${PUBMED_EMAIL:-}",
        "AUDIT_ENABLED": "${AUDIT_ENABLED:-true}",
        "BRAVE_API_KEY": "${BRAVE_API_KEY:-}",
        "IA_ACCESS_KEY": "${IA_ACCESS_KEY:-}",
        "IA_SECRET_KEY": "${IA_SECRET_KEY:-}",
        "STDIO_USER_ID": "${WEB_RESEARCHER_MCP_STDIO_USER_ID:-}",
        "USPTO_API_KEY": "${USPTO_API_KEY:-}",
        "CROSSREF_EMAIL": "${CROSSREF_EMAIL:-}",
        "LENS_API_TOKEN": "${LENS_API_TOKEN:-}",
        "MEMORY_ENABLED": "${WEB_RESEARCHER_MCP_MEMORY_ENABLED:-false}",
        "OPENALEX_EMAIL": "${OPENALEX_EMAIL:-}",
        "PUBMED_API_KEY": "${PUBMED_API_KEY:-}",
        "SEARCH_ROUTING": "${SEARCH_ROUTING:-}",
        "SERPER_API_KEY": "${SERPER_API_KEY:-}",
        "TAVILY_API_KEY": "${TAVILY_API_KEY:-}",
        "ALLOWED_DOMAINS": "${ALLOWED_DOMAINS:-}",
        "SEARCH_PROVIDER": "${SEARCH_PROVIDER:-google}",
        "SEARXNG_HEADERS": "${SEARXNG_HEADERS:-}",
        "UNPAYWALL_EMAIL": "${UNPAYWALL_EMAIL:-}",
        "SESSION_DATA_DIR": "${SESSION_DATA_DIR:-}",
        "ALLOW_PRIVATE_IPS": "${ALLOW_PRIVATE_IPS:-false}",
        "AUDIT_OUTPUT_PATH": "${AUDIT_OUTPUT_PATH:-}",
        "SEARCHAPI_API_KEY": "${SEARCHAPI_API_KEY:-}",
        "SESSION_MAX_STEPS": "${SESSION_MAX_STEPS:-}",
        "CUSTOM_LENSES_PATH": "${CUSTOM_LENSES_PATH:-}",
        "SEARXNG_BASIC_AUTH": "${SEARXNG_BASIC_AUTH:-}",
        "WORKSPACES_ENABLED": "${WEB_RESEARCHER_MCP_WORKSPACES_ENABLED:-false}",
        "CACHE_MAX_MEMORY_MB": "${CACHE_MAX_MEMORY_MB:-}",
        "EDGAR_CONTACT_EMAIL": "${EDGAR_CONTACT_EMAIL:-}",
        "CACHE_ENCRYPTION_KEY": "${CACHE_ENCRYPTION_KEY:-}",
        "EPO_OPS_CONSUMER_KEY": "${EPO_OPS_CONSUMER_KEY:-}",
        "GENERATIVE_UI_ENABLED": "${WEB_RESEARCHER_MCP_GENERATIVE_UI_ENABLED:-false}",
        "MAX_SCRAPE_CONCURRENCY": "${MAX_SCRAPE_CONCURRENCY:-5}",
        "SOURCE_RECOMMENDATIONS": "${WEB_RESEARCHER_MCP_SOURCE_RECOMMENDATIONS:-false}",
        "USER_ANALYTICS_ENABLED": "${WEB_RESEARCHER_MCP_USER_ANALYTICS_ENABLED:-false}",
        "COURTLISTENER_API_TOKEN": "${COURTLISTENER_API_TOKEN:-}",
        "EPO_OPS_CONSUMER_SECRET": "${EPO_OPS_CONSUMER_SECRET:-}",
        "GOOGLE_CUSTOM_SEARCH_ID": "${GOOGLE_CUSTOM_SEARCH_ID:-}",
        "SEMANTIC_SCHOLAR_API_KEY": "${SEMANTIC_SCHOLAR_API_KEY:-}",
        "GOOGLE_CUSTOM_SEARCH_API_KEY": "${GOOGLE_CUSTOM_SEARCH_API_KEY:-}"
      }
    }
  }
}

Replace placeholder values for: GOOGLE_CUSTOM_SEARCH_API_KEY, BRAVE_API_KEY, SERPER_API_KEY

Security Considerations

Review these signals before enabling this server

Requires secrets

This MCP server needs API keys or credentials. Configure them in your environment before use.

Details

Server configuration and connection parameters

Commandweb-researcher-mcp

Access Levelwrite

Environment Variables

Environment variables set when the server starts

CACHE_DIR=${CACHE_DIR:-}

LOG_LEVEL=${LOG_LEVEL:-info}

LOG_FORMAT=${LOG_FORMAT:-}

CHROME_PATH=${CHROME_PATH:-}

EXA_API_KEY=${EXA_API_KEY:-}

SEARXNG_URL=${SEARXNG_URL:-}

FRED_API_KEY=${FRED_API_KEY:-}

PUBMED_EMAIL=${PUBMED_EMAIL:-}

AUDIT_ENABLED=${AUDIT_ENABLED:-true}

BRAVE_API_KEY=${BRAVE_API_KEY:-}

IA_ACCESS_KEY=${IA_ACCESS_KEY:-}

IA_SECRET_KEY=${IA_SECRET_KEY:-}

STDIO_USER_ID=${WEB_RESEARCHER_MCP_STDIO_USER_ID:-}

USPTO_API_KEY=${USPTO_API_KEY:-}

CROSSREF_EMAIL=${CROSSREF_EMAIL:-}

LENS_API_TOKEN=${LENS_API_TOKEN:-}

MEMORY_ENABLED=${WEB_RESEARCHER_MCP_MEMORY_ENABLED:-false}

OPENALEX_EMAIL=${OPENALEX_EMAIL:-}

PUBMED_API_KEY=${PUBMED_API_KEY:-}

SEARCH_ROUTING=${SEARCH_ROUTING:-}

SERPER_API_KEY=${SERPER_API_KEY:-}

TAVILY_API_KEY=${TAVILY_API_KEY:-}

ALLOWED_DOMAINS=${ALLOWED_DOMAINS:-}

SEARCH_PROVIDER=${SEARCH_PROVIDER:-google}

SEARXNG_HEADERS=${SEARXNG_HEADERS:-}

UNPAYWALL_EMAIL=${UNPAYWALL_EMAIL:-}

SESSION_DATA_DIR=${SESSION_DATA_DIR:-}

ALLOW_PRIVATE_IPS=${ALLOW_PRIVATE_IPS:-false}

AUDIT_OUTPUT_PATH=${AUDIT_OUTPUT_PATH:-}

SEARCHAPI_API_KEY=${SEARCHAPI_API_KEY:-}

SESSION_MAX_STEPS=${SESSION_MAX_STEPS:-}

CUSTOM_LENSES_PATH=${CUSTOM_LENSES_PATH:-}

SEARXNG_BASIC_AUTH=${SEARXNG_BASIC_AUTH:-}

WORKSPACES_ENABLED=${WEB_RESEARCHER_MCP_WORKSPACES_ENABLED:-false}

CACHE_MAX_MEMORY_MB=${CACHE_MAX_MEMORY_MB:-}

EDGAR_CONTACT_EMAIL=${EDGAR_CONTACT_EMAIL:-}

CACHE_ENCRYPTION_KEY=${CACHE_ENCRYPTION_KEY:-}

EPO_OPS_CONSUMER_KEY=${EPO_OPS_CONSUMER_KEY:-}

GENERATIVE_UI_ENABLED=${WEB_RESEARCHER_MCP_GENERATIVE_UI_ENABLED:-false}

MAX_SCRAPE_CONCURRENCY=${MAX_SCRAPE_CONCURRENCY:-5}

SOURCE_RECOMMENDATIONS=${WEB_RESEARCHER_MCP_SOURCE_RECOMMENDATIONS:-false}

USER_ANALYTICS_ENABLED=${WEB_RESEARCHER_MCP_USER_ANALYTICS_ENABLED:-false}

COURTLISTENER_API_TOKEN=${COURTLISTENER_API_TOKEN:-}

EPO_OPS_CONSUMER_SECRET=${EPO_OPS_CONSUMER_SECRET:-}

GOOGLE_CUSTOM_SEARCH_ID=${GOOGLE_CUSTOM_SEARCH_ID:-}

SEMANTIC_SCHOLAR_API_KEY=${SEMANTIC_SCHOLAR_API_KEY:-}

GOOGLE_CUSTOM_SEARCH_API_KEY=${GOOGLE_CUSTOM_SEARCH_API_KEY:-}

Required Secrets

Sensitive values you must provide — never committed to source control

GOOGLE_CUSTOM_SEARCH_API_KEYBRAVE_API_KEYSERPER_API_KEY

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LanguageGo

Stars29

Forks4

MaintenanceExcellent

Last CommitJun 18, 2026

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web-researcher

{ "mcpServers": { "web-researcher": { "command": "web-researcher-mcp", "env": { "CACHE_DIR": "${CACHE_DIR:-}", "LOG_LEVEL": "${LOG_LEVEL:-info}", "LOG_FORMAT": "${LOG_FORMAT:-}", "CHROME_PATH": "${CHROME_PATH:-}", "EXA_API_KEY": "${EXA_API_KEY:-}", "SEARXNG_URL": "${SEARXNG_URL:-}", "FRED_API_KEY": "${FRED_API_KEY:-}", "PUBMED_EMAIL": "${PUBMED_EMAIL:-}", "AUDIT_ENABLED": "${AUDIT_ENABLED:-true}", "BRAVE_API_KEY": "${BRAVE_API_KEY:-}", "IA_ACCESS_KEY": "${IA_ACCESS_KEY:-}", "IA_SECRET_KEY": "${IA_SECRET_KEY:-}", "STDIO_USER_ID": "${WEB_RESEARCHER_MCP_STDIO_USER_ID:-}", "USPTO_API_KEY": "${USPTO_API_KEY:-}", "CROSSREF_EMAIL": "${CROSSREF_EMAIL:-}", "LENS_API_TOKEN": "${LENS_API_TOKEN:-}", "MEMORY_ENABLED": "${WEB_RESEARCHER_MCP_MEMORY_ENABLED:-false}", "OPENALEX_EMAIL": "${OPENALEX_EMAIL:-}", "PUBMED_API_KEY": "${PUBMED_API_KEY:-}", "SEARCH_ROUTING": "${SEARCH_ROUTING:-}", "SERPER_API_KEY": "${SERPER_API_KEY:-}", "TAVILY_API_KEY": "${TAVILY_API_KEY:-}", "ALLOWED_DOMAINS": "${ALLOWED_DOMAINS:-}", "SEARCH_PROVIDER": "${SEARCH_PROVIDER:-google}", "SEARXNG_HEADERS": "${SEARXNG_HEADERS:-}", "UNPAYWALL_EMAIL": "${UNPAYWALL_EMAIL:-}", "SESSION_DATA_DIR": "${SESSION_DATA_DIR:-}", "ALLOW_PRIVATE_IPS": "${ALLOW_PRIVATE_IPS:-false}", "AUDIT_OUTPUT_PATH": "${AUDIT_OUTPUT_PATH:-}", "SEARCHAPI_API_KEY": "${SEARCHAPI_API_KEY:-}", "SESSION_MAX_STEPS": "${SESSION_MAX_STEPS:-}", "CUSTOM_LENSES_PATH": "${CUSTOM_LENSES_PATH:-}", "SEARXNG_BASIC_AUTH": "${SEARXNG_BASIC_AUTH:-}", "WORKSPACES_ENABLED": "${WEB_RESEARCHER_MCP_WORKSPACES_ENABLED:-false}", "CACHE_MAX_MEMORY_MB": "${CACHE_MAX_MEMORY_MB:-}", "EDGAR_CONTACT_EMAIL": "${EDGAR_CONTACT_EMAIL:-}", "CACHE_ENCRYPTION_KEY": "${CACHE_ENCRYPTION_KEY:-}", "EPO_OPS_CONSUMER_KEY": "${EPO_OPS_CONSUMER_KEY:-}", "GENERATIVE_UI_ENABLED": "${WEB_RESEARCHER_MCP_GENERATIVE_UI_ENABLED:-false}", "MAX_SCRAPE_CONCURRENCY": "${MAX_SCRAPE_CONCURRENCY:-5}", "SOURCE_RECOMMENDATIONS": "${WEB_RESEARCHER_MCP_SOURCE_RECOMMENDATIONS:-false}", "USER_ANALYTICS_ENABLED": "${WEB_RESEARCHER_MCP_USER_ANALYTICS_ENABLED:-false}", "COURTLISTENER_API_TOKEN": "${COURTLISTENER_API_TOKEN:-}", "EPO_OPS_CONSUMER_SECRET": "${EPO_OPS_CONSUMER_SECRET:-}", "GOOGLE_CUSTOM_SEARCH_ID": "${GOOGLE_CUSTOM_SEARCH_ID:-}", "SEMANTIC_SCHOLAR_API_KEY": "${SEMANTIC_SCHOLAR_API_KEY:-}", "GOOGLE_CUSTOM_SEARCH_API_KEY": "${GOOGLE_CUSTOM_SEARCH_API_KEY:-}" } } } }