What is the key difference between Greencalculus MCP and CorpusIQ?

Greencalculus MCP belongs to the Data Platforms category with local stdio execution, while CorpusIQ belongs to the Data Platforms category with cloud HTTP/SSE execution.

How do I install Greencalculus MCP or CorpusIQ in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Greencalculus MCP and CorpusIQ free or paid?

Greencalculus MCP operates under a Free / Open Source model (No auth required). CorpusIQ operates under a Freemium model (OAuth 2.0).

Which MCP server has more tools and community activity?

Greencalculus MCP lists 12 tools with 0 views and 0 GitHub stars. CorpusIQ lists 6 tools with 3 views and 19 GitHub stars.

Can I use both Greencalculus MCP and CorpusIQ together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Greencalculus MCP vs CorpusIQ

In-depth architectural comparison of the Greencalculus MCP and CorpusIQ MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Greencalculus MCP

Data Platforms · Local stdio

Quality: 56/100 (Good) | Auth: No auth required

CorpusIQ

Data Platforms · Remote HTTP/SSE

Quality: 74/100 (Great) | Auth: OAuth 2.0

Verdict Summary: Choose Greencalculus MCP if you need specialized Data Platforms tools running via a local process. Choose CorpusIQ if your workspace requires Data Platforms integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Greencalculus MCP when:

You need dedicated capabilities in the Data Platforms domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: lookup_factor, lookup_factors, search_factors.

Explore Greencalculus MCP Details

Choose CorpusIQ when:

You need dedicated capabilities in the Data Platforms domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: OAuth 2.0 (Freemium).
Primary tools included: 65+ listed MCP tools, 40+ live-data connectors, Streamable HTTP MCP endpoint.

Explore CorpusIQ Details

Feature & Specification Comparison

Specification	Greencalculus MCP jeremiahsay Data Platforms	C CorpusIQ VerifiedData Platforms
Summary	Sourced greenhouse-gas emission factors and audit-traced carbon calculations (activity, embodied EN 15978, PCAF financed emissions) — every value returns with its exact source cell and data version, so answers are citable and reproducible. 13,000+ factors, 11 tools. Install: npx -y greencalculus-mcp, or connect remotely at https://mcp.greencalculus.com. Free tier, no card.	65+ MCP tools for business operations: ecommerce, finance, marketing, and analytics data through one streamable-HTTP endpoint. Built for operators.

Tools & Capabilities Breakdown

Greencalculus MCP Tools (12)

lookup_factor

Fetch one emission factor by key, with its source and version

lookup_factors

Fetch many factors by key in one call — a portfolio is one request, not one per factor

search_factors

Search the corpus by free text

resolve_factor

Map a messy real-world description to the best-matching factor

explain_absence

Say *why* a factor does not exist, rather than returning nothing

calculate_activity

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Greencalculus MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "jeremiahsay-greencalculus-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "greencalculus-mcp"
      ]
    }
  }
}

CorpusIQ Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "corpusiq": {
      "url": "https://mcp2.corpusiq.io/mcp"
    }
  }
}

Frequently Asked Questions

Greencalculus MCP is categorized under Data Platforms and uses a local stdio subprocess. In contrast, CorpusIQ belongs to Data Platforms using remote streaming HTTP/SSE transport. Select Greencalculus MCP when you need capabilities focused on data platforms and CorpusIQ when you require tools for data platforms.

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