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DimensionOpenAlex MCP ServerAccess the OpenAlex academic research catalog - 270M+ publications through MCP. STDIO & Streamable HTTP.DuckDuckGo Search MCP ServerMCP server providing web search and content fetching via DuckDuckGo
FMRS63 / 100 · C74 / 100 · B
Reliability10 / 2011 / 20
Security and permissions14 / 2015 / 20
Maintenance10 / 2017 / 20
Documentation15 / 2017 / 20
Setup experience14 / 2014 / 20
Best for
  • Researchers, librarians, and academic writing assistants.
  • Developers needing up-to-date scholarly metadata.
  • Those building AI tools on top of a large academic knowledge base.
  • Developers needing quick, API-key-free web search capabilities
  • Privacy-conscious users who prefer local search execution
  • AI application development with Claude Desktop or Claude Code
Not for
  • Access to full-text PDFs—the server provides metadata only.
  • Users seeking everyday non-academic search.
  • Applications requiring extremely low latency for massive concurrent requests without rate limit handling.
  • Enterprise applications requiring high-scale, reliable search APIs
  • Users needing advanced search features like custom ranking or filters
  • Accessing sites blocked by TLS fingerprinting without installing the optional browser backend
Required permissions
  • Requires access to the OpenAlex API, either anonymous or with an API key.
  • For HTTP transport, needs to open a port locally or configure a public endpoint.
  • May read or parse input data containing names or identifiers.
  • Outbound network access to DuckDuckGo and other websites
  • Reads environment variables for SafeSearch, region, and CA certificates
  • Optionally reads a CA certificate file (for TLS-intercepting proxies)
Risks and side effects
  • API rate limits may be more restrictive with anonymous access; without a mailto identifier, requests may be throttled.
  • OpenAlex data is updated regularly but may not be real-time, and some records may be missing.
  • If exposed over the internet, the server could be a target for abuse; protect the endpoint if public.
  • Tools returning large data sets may cause high network traffic and memory usage.
  • Search endpoints may occasionally return empty results or errors, especially when blocked
  • Content fetching may be subject to SSRF protection, blocking private or loopback addresses by default
  • Misuse could lead to rate limiting or IP blocking
Supported clientsClaude Desktop, Cursor, VS CodeClaude Desktop, Claude Code
Tools52