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How to connect Granted MCP to Claude

Connect Claude Web, Desktop and Cowork to Granted MCP. Find grants matching our nonprofit mission, list upcoming grant deadlines this month, and more using natural language, with authentication handled for you.

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Granted MCP is a grant discovery service for finding funding opportunities across funders. It helps teams compare eligibility details and deadlines without digging through scattered grant portals.

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Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Granted account to Claude via Composio Connect, enabling it to find grants matching our nonprofit mission, list upcoming grant deadlines this month, check eligibility for federal research grants, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Granted MCP with

ChatGPTGrok Bot

Connecting Granted to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Granted account

Back in Claude, ask it to connect to Granted or give it any Granted-related task.

For example, ask Claude to:

  • "Find grants matching our nonprofit mission"
  • "List upcoming grant deadlines this month"
  • "Check eligibility for federal research grants"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Granted account is ready to use.

What is the Granted Claude Connector, and what's possible with it?

The Granted MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Granted account. It provides structured and secure access so your agent can perform Granted operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for Granted?

The connector can show as connected, but Claude must use it in each Granted conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Granted again.

2. Why does Claude show an MCP server error before Granted connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Granted.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Granted.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Granted authorization link not work?

The Composio connector is one server. Your Granted account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Granted connection.
  • Composio creates a fresh Granted authorization link.
  • Open that link in your browser and finish the Granted sign-in.

4. Why do Granted actions fail after they worked before?

The Granted connection can expire or lose permission.

  • Ask Claude to inspect the Granted connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Granted account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Granted.
  • If the action still fails with a permission error, check that the connected account has that permission in Granted itself.

5. How do I switch to a different Granted account?

Claude can manage the Granted connection for you.

  • Ask Claude to disconnect or delete the current Granted account.
  • Ask Claude to connect Granted again.
  • Open the new Composio authorization link for Granted.
  • Sign in with the other Granted account in the browser.
  • After the account connects, ask Claude to retry the Granted task.

6. Why is my Granted connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Granted connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Granted tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Granted.
TOOLS

Supported Tools

Every Granted MCP action and event your agent gets out of the box.

Get funder

Get a full foundation profile including mission, 5-year financials, recent grants awarded, key officers, and application info.

Get grant

Get full details for a specific grant by its slug.

Get past winners

Competitive intelligence: see who has won a specific federal grant program.

Search funders

Search 133,000+ US foundations by name, state, NTEE code, asset range, and annual income range.

Search grants

Search 140,000+ grant opportunities by keyword, state, source type, funder, and more.

FRAMEWORKS

How to build Granted MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Granted MCP with ChatGPT

Grok Bot logo

Grok Bot

Use Granted MCP with Grok Bot

FAQ

Frequently asked questions

With a standalone Granted MCP server, the agents and LLMs can only access a fixed set of Granted tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Granted and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Granted tools.

Yes, absolutely. You can configure which Granted scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Granted data and credentials are handled as safely as possible.

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