Opencitations vs Idea Reality MCP

A side-by-side look at the Opencitations and Idea Reality MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Opencitations logoOpencitationsResearch · Local subprocess (stdio)OpenCitations COCI — open-license citation index by DOI59GoodAuth: not declaredIdea Reality MCP logoIdea Reality MCPResearch · Local subprocess (stdio)Pre-build reality check for AI coding agents. Scans GitHub, Hacker News, npm, PyPI, and Product Hunt to detect existing competition before building, returning a reality signal score (0-100), duplicate likelihood, similar projects, and pivot hints.65GreatAuth: no auth required

Verdict: choose Opencitations for research work as a local process; choose Idea Reality MCP for research as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Opencitations logoChoose Opencitations when

  • You need dedicated capabilities in the Research domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like references, citations, citation_count.
Explore Opencitations

Idea Reality MCP logoChoose Idea Reality MCP when

  • You need dedicated capabilities in the Research domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like idea_check.
Explore Idea Reality MCP

Feature & specification comparison

Rows where the two servers differ are marked.

SpecOpencitations logoOpencitationsIdea Reality MCP logoIdea Reality MCP
CategoryResearchResearch
Quality signal59/100 · Good65/100 · Great
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars0828
Directory activity 1 views 0 installs 0 upvotes 7 views 0 installs 0 upvotes
Tools61

Tools & capabilities

Opencitations tools 6

  • references"What does paper [DOI] cite" / "references in [paper]" / "what sources does this paper use" — DOIs cited BY the given DOI (the paper's reference list / bibliography). Use for citation-graph traversal, literature review, source tracking.
  • citations"Who cites paper [DOI]" / "what papers reference [DOI]" / "incoming citations to [paper]" / "what work has cited [study]" — DOIs that CITE the given DOI (reverse-direction from references). Use for impact analysis, follow-on research discovery, "is this paper influential" questions.
  • citation_count"How many times has paper [DOI] been cited" / "citation count for [paper]" / "is [study] highly cited" — incoming citation count for a DOI. Fast version of `citations` when you only need the number, not the citing DOIs.
  • references_count"How many references does paper [DOI] have" / "how big is the bibliography of [paper]" — outgoing reference count for a DOI. Fast version of `references` when you only need the number.
  • metadata"Get paper info for [DOI]" / "bibliographic details for [paper]" / "title / authors / year of [DOI]" — bibliographic metadata for one or more DOIs (up to 50 at once). Returns title, authors, year, journal, publisher.
  • citationFetch one citation record by its Open Citation Identifier (OCI — a compound ID of the form citing-DOI__cited-DOI). Returns citing/cited DOI pair, creation date, and journal self-citation flag. Use `citations` or `references` instead when you only have a DOI.

Idea Reality MCP tools 1

  • idea_checkCheck if a product idea already exists before building it. Use when users discuss new project ideas, ask about competition, market saturation, or whether something has been built before. Trigger phrases: "has anyone built", "does this exist", "check competition", "is this idea original", "有沒有人做過", "市場上有類似的嗎", "幫我查這個點子"

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Opencitations

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "opencitations": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-opencitations"
      ]
    }
  }
}

Idea Reality MCP

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "mnemox-ai-idea-reality-mcp": {
      "command": "uvx",
      "args": [
        "idea-reality-mcp"
      ]
    }
  }
}

Frequently asked questions

Opencitations is categorized under Research and uses a local stdio subprocess. Idea Reality MCP belongs to Research and uses a local stdio subprocess. Pick Opencitations for research work and Idea Reality MCP for research.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Opencitations has no declared pricing — check the project's own site. Idea Reality MCP is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add opencitations and mnemox-ai-idea-reality-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Opencitations has a quality signal of 59/100 (Good) with 1 views, 0 installs and 0 GitHub stars. Idea Reality MCP has 65/100 (Great) with 7 views, 0 installs and 828 GitHub stars.