How to Use the Candid (GuideStar) MCP in Claude

Q: Can Candid (GuideStar) help me vet nonprofits inside Claude Desktop?

Yes, it handles eligibility checks immediately. Use getnonprofiteligibility to see if an organization meets your specific donation platform requirements.

Q: How do I get real-time news for a nonprofit?

Call the getnonprofitnews tool during your session. It fetches the latest social sector updates for any EIN you provide.

Q: What core details can I pull by EIN?

Use getnonprofitessentials to grab names, locations, and mission summaries. It is the fastest way to verify basic identity data.

Pull nonprofit financials and grant data directly into Claude Desktop using this MCP Server.

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Connect Candid (GuideStar) MCP to Claude Desktop

Create your Vinkius account to connect Candid (GuideStar) to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Candid (GuideStar) with Claude Desktop

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Check charity status in Claude Desktop

Verify tax-deductible status instantly without leaving your chat window. You just ask, and the tool runs `verify_charity_status` to confirm an organization's current standing. Keep your compliance records clean by generating official reports. Claude Desktop uses `get_charity_check_pdf` to output the exact documentation you need for your files.

Analyze nonprofit demographics via MCP Server

Get deep insight into organizational structure by fetching DEI data. Your agent executes `get_demographics` to parse specific diversity metrics for any nonprofit in the database. Compare these findings against mission statements to build a clear picture. The data arrives formatted and ready for your review right inside the chat.

Research grants with Claude Desktop

Find specific funding opportunities by running `search_grants` against the latest foundation records. You get the details you need to evaluate potential partnerships without manual searching. Dig into the specifics of any opportunity by calling `get_grant_details`. It pulls the requirements and award info so you can decide if a project fits your goals.

Setup guide

Set up Candid (GuideStar) MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Candid (GuideStar) MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Candid (GuideStar) MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under candid-guidestar-mcp.

json

{
  "mcpServers": {
    "candid-guidestar-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Candid (GuideStar). All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

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Common questions about Candid (GuideStar) MCP in Claude Desktop

Paste your endpoint URL into the Claude Desktop integrations menu. Once active, just ask Claude to fetch details using `get_nonprofit_premier` to see full financial breakdowns.

Yes, it handles eligibility checks immediately. Use `get_nonprofit_eligibility` to see if an organization meets your specific donation platform requirements.

Your queries stay within the encrypted tunnel established by the Vinkius session. We handle your EIN lookups and report requests through a secure, isolated sandbox environment that clears after your chat ends.

Call the `get_nonprofit_news` tool during your session. It fetches the latest social sector updates for any EIN you provide.

Use `get_nonprofit_essentials` to grab names, locations, and mission summaries. It is the fastest way to verify basic identity data.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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