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How to connect Daffy to Claude

Connect Claude Web, Desktop and Cowork to Daffy MCP. Show your current daffy fund balance, list your donations from the past year, and more using natural language, with authentication handled for you.

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Daffy is a modern charitable giving platform with a donor-advised fund. Easily set aside funds, grow them tax-free, and donate to over 1.7 million U.S. charities.

12 Tools

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 Daffy account to Claude via Composio Connect, enabling it to show your current Daffy fund balance, list your donations from the past year, find nonprofits supporting animal welfare, 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 Daffy with

OpenAI Agents SDKClaude Agent SDKClaude CodeCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Daffy 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 Daffy account

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

For example, ask Claude to:

  • "Show your current Daffy fund balance"
  • "List your donations from the past year"
  • "Find nonprofits supporting animal welfare"

It will prompt you to authenticate and authorize access.

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

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

The Daffy MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Daffy account. It provides structured and secure access to your donor-advised fund, so your agent can check balances, make donations, search for nonprofits, and manage your giving history on your behalf.

  • Effortless charitable gifting and donations: Instruct your agent to create new charitable gifts, make donations, or send gifts to specific nonprofits right from your account.
  • Donation and contribution tracking: Have your agent pull detailed lists of your past donations and contributions, giving you a clear view of your giving activity and history.
  • Fund balance and account management: Let your agent check your current fund balance or retrieve your profile details, keeping you updated on your financial standing in Daffy.
  • Non-profit discovery and research: Ask your agent to search for nonprofits by name, cause, or EIN, and fetch detailed information about organizations you might want to support.
  • User causes and personalized insights: Enable your agent to list your preferred causes or explore your giving patterns to suggest new ways to maximize your charitable impact.

Troubleshooting

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

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

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

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

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

  • 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 Daffy.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Daffy authorization link not work?

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

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

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

The Daffy connection can expire or lose permission.

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

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

Claude can manage the Daffy connection for you.

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

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

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

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Daffy 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 Daffy.
TOOLS

Supported Tools

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

Create Gift

Tool to create a new charitable gift.

Get Balance

Retrieve the authenticated user's Daffy fund balance information.

Get Contributions

Retrieves paginated list of contributions made to the authenticated user's Daffy donor-advised fund (DAF).

Get Donations

Retrieves the authenticated user's donation history from their Daffy account.

Get Gift by Code

Tool to retrieve details of a specific gift by its unique code.

Get Gifts

Retrieve a paginated list of gifts associated with the user's Daffy account.

Get Non-Profit by EIN (v2)

Tool to retrieve detailed information about a non-profit organization by its EIN.

Get User by Username

Tool to retrieve a user's public profile information by username.

Get User Causes

Retrieves the list of charitable causes associated with a user's Daffy fund.

Get User Donations

Tool to retrieve public donations for a specific user by user ID.

Get User Profile

Tool to retrieve the authenticated user's profile.

Search Non-Profits

Tool to search non-profit organizations by cause ID and query text.

FRAMEWORKS

How to build Daffy MCP Agent with another framework

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Daffy MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Daffy MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Daffy MCP with Claude Code

Codex logo

Codex

Use Daffy MCP with Codex

OpenClaw logo

OpenClaw

Use Daffy MCP with OpenClaw

Hermes logo

Hermes

Use Daffy MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Daffy MCP with Atomic Agent

Google ADK logo

Google ADK

Use Daffy MCP with Google ADK

LangChain logo

LangChain

Use Daffy MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Daffy MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Daffy MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Daffy MCP with LlamaIndex

CrewAI logo

CrewAI

Use Daffy MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Daffy MCP with Pydantic AI

AutoGen logo

AutoGen

Use Daffy MCP with AutoGen

FAQ

Frequently asked questions

With a standalone Daffy MCP server, the agents and LLMs can only access a fixed set of Daffy tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Daffy 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 Daffy tools.

Yes, absolutely. You can configure which Daffy 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 Daffy data and credentials are handled as safely as possible.

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