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Connect Candid (GuideStar) to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Run deep due diligence and research through your AI agent.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 10 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through Candid (GuideStar).

  1. 01

    Get demographics

    Retrieves DEI data for a specific nonprofit to help you assess organizational diversity.

  2. 02

    Get nonprofit news

    Fetches real-time social sector news related to a nonprofit so your agent stays updated on their recent activity.

  3. 03

    Get grant details

    Provides specific information regarding a particular grant.

  4. 04

    Search grants

    Searches for grants that have been awarded by various foundations.

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through Candid (GuideStar).

  1. 05

    Search nonprofits

    Finds nonprofits using specific filters like name or location.

  2. 06

    Verify charity status

    Checks if an organization is eligible to receive tax-deductible contributions.

  3. 07

    Get charity check PDF

    Generates a PDF report of a charity check for your compliance records.

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through Candid (GuideStar).

  1. 08

    Get nonprofit eligibility

    Verifies if a nonprofit meets the requirements for specific donation platforms.

  2. 09

    Get nonprofit essentials

    Fetches core metadata for a nonprofit using its EIN.

  3. 10

    Get nonprofit premier

    Accesses deep-dive, comprehensive data for a nonprofit via its EIN.

Real work

What teams actually run

01

Grantee Due Diligence

A foundation officer asks their agent to check the financial stability and leadership of a potential grantee.

02

Compliance Auditing

A researcher uses the capability to generate PDF reports for verifying tax-deductible eligibility.

03

Market Research

An analyst searches for all nonprofits in a specific region using NTEE codes.

04

Impact Assessment

A user pulls DEI data to see if an organization aligns with their philanthropic strategy.

Automate a task

Put Candid (GuideStar) to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Candid (GuideStar) works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Candid (GuideStar) to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

854ms average. Fast in production.

Candid (GuideStar) is checked daily against the live service.

Daily averagePeak 1030ms
Oct 3Today
Fastest day
753ms
Slowest day
1030ms
14-day trend
Improving-6%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Candid (GuideStar), so you can see the experience inside your AI.

It does not authenticate your account with Candid (GuideStar). Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Candid (GuideStar) Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_tRlEQph1dWDZkYHSz6AodhMhc2v3dwB5BryIZcZu/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Candid (GuideStar) capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "candid-guidestar-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_tRlEQph1dWDZkYHSz6AodhMhc2v3dwB5BryIZcZu/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Candid (GuideStar) in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Candid (GuideStar) owners hand off.

This MCP is built for professionals who need to vet organizations without manually navigating complex databases.

  • 01

    Philanthropists

    They ask the AI to verify charity status and financial health before making donations.

  • 02

    Researchers

    They use the agent to gather metadata and financial data for formal reports.

  • 03

    Developers

    They use natural language to pull reliable non-profit data into their own applications.

FAQ

Questions Candid (GuideStar) owners ask.

  • 01

    What do I need to use this MCP?

    You will need a valid Candid API Subscription Key to authenticate your connection.

  • 02

    Which AI clients can I use?

    You can use any MCP-compatible client, including Claude, Cursor, and Windsurf.

  • 03

    Can I verify if a charity is tax-exempt?

    Yes, you can use the verify_charity_status capability to check an organization's IRS standing and eligibility for tax-deductible contributions.

  • 04

    How do I find a specific nonprofit?

    You can search by name, location, or NTEE code, or use an EIN to pull specific data fields.

  • 05

    Does this provide financial data?

    Yes, it allows you to retrieve detailed financial records and IRS Form 990 data.

  • 06

    Can I verify if a non-profit is eligible for tax-deductible donations?

    Yes! Use the verify_charity_status capability with the organization's EIN. Your agent will fetch the real-time compliance status from Candid's Charity Check API.

  • 07

    How do I find the EIN for an organization if I only have its name?

    Simply ask the agent to search_nonprofits and provide the name. The search results will include the EIN for each matching organization, which you can then use for deeper lookups.

  • 08

    Does the integration allow accessing diversity and inclusion data?

    Yes. Use the get_demographics capability. It will retrieve the DEI metadata provided by the organization to Candid, helping you understand their leadership and staff representation.

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