How to connect Daffy to Hermes Agent
Connect Daffy to Hermes with ClawLink: paste your Daffy key once and 12 tools work from chat. No MCP server to run, nothing stored on your machine.
DaffyAPI KEYMCPDaffy is a modern platform for charitable giving, offering a donor-advised fund that allows users to set money aside, watch it grow tax-free, and donate to over 1.7 million charities in the U.S.. Once connected, Hermes Agent can read and act on Daffy from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent Daffy access start with registering your own OAuth app or pasting API keys into env files, then leave the token refresh and tool wiring to you. ClawLink gives Hermes a more practical Daffy setup: pair once in the browser and your always-on Hermes agent can act on Daffy for you, reading and doing real work on your behalf with no auth, token refresh, or tool wiring to build yourself.
Setup
It takes three steps to connect Hermes to Daffy.
1Install and pair
Install the ClawLink plugin, then pair Hermes with a one-time browser approval:
hermes plugins install ClawLink-HQ/hermes-plugin --enable- 2
Connect Daffy
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with Daffy?"
Install by command
The prompt above walks Hermes through this. By hand, it is four commands and a browser approval:
hermes plugins install ClawLink-HQ/hermes-plugin --enable
hermes clawlink begin # prints an approval link — open it and approve
hermes clawlink finish # after approving in the browser
hermes clawlink testThen connect Daffy in the ClawLink dashboard — paste your Daffy API key once.
Verify the connection by asking Hermes:
Pull the relevant data from Daffy, summarize it in plain English, and point out anything that needs attention.
Using a different agent?
The Hermes plugin is one client of ClawLink's MCP server. Claude Code, Cursor, Codex, or any agent that can run a shell command pairs with the same ClawLink account through the CLI:
npx -y @useclawlink/cli loginlogin opens the same browser approval and stores a credential locally. Once Daffy is connected in the dashboard, that agent calls the same 12 Daffy tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
Daffy MCP for Hermes
Looking for a Daffy MCP server for Hermes Agent? ClawLink connects Daffy to Hermes Agent and exposes 12 Daffy tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw Daffy integration works the same way.
What the Hermes Agent Daffy integration can do
12 Daffy tools are ready for Hermes Agent once the account is connected.
All 12 Daffy tools for Hermes
| Tool | What it does |
|---|---|
Get balance daffy_get_balance | Retrieve the authenticated user's Daffy fund balance information |
Get contributions daffy_get_contributions | Retrieves paginated list of contributions made to the authenticated user's Daffy donor-advised |
Get donations daffy_get_donations | Retrieves the authenticated user's donation history from their Daffy account |
Get gift by code daffy_get_gift_by_code | Retrieve details of a specific gift by its unique code |
Get gifts daffy_get_gifts | Retrieve a paginated list of gifts associated with the user's Daffy account |
Get non profit by ein2 daffy_get_non_profit_by_ein2 | Retrieve detailed information about a non-profit organization by its EIN |
Get user by username daffy_get_user_by_username | Retrieve a user's public profile information by username |
Get user causes daffy_get_user_causes | Retrieves the list of charitable causes associated with a user's Daffy fund |
Get user donations daffy_get_user_donations | Retrieve public donations for a specific user by user ID |
Get user profile daffy_get_user_profile | Retrieve the authenticated user's profile |
Search non profits daffy_search_non_profits | Search non-profit organizations by cause ID and query text |
Create gift daffy_create_gift | Create a new charitable gift |
Try it: find the Daffy tool you need
Browse the 12 Daffy tools
Click any tool to see exactly what Hermes can do and copy a ready-to-use prompt.
Example prompts
Pull the relevant data from Daffy, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from Daffy, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from Daffy, summarize it in plain English, and point out anything that needs attention.
Pull the relevant data from Daffy, summarize it in plain English, and point out anything that needs attention.
ClawLink vs. building it yourself
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want Daffy working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the Daffy API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected Daffy account becomes available to the agent without you building credential management. |
| Ongoing maintenance | You own refresh logic, permission debugging, environment config, and every provider-specific edge case for Daffy. | ClawLink handles the repetitive integration plumbing so your team can focus on the workflow instead of the infrastructure. |
| Agent usability | You still need to expose the right Daffy actions to the runtime in a format your agent can reliably use. | 12 tools for Daffy are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes Daffy to AI agents. It is developer infrastructure: Python and TypeScript SDKs, an MCP server, and a catalog past 1,000 apps, aimed at teams shipping agent products. ClawLink is built for Hermes Agent users instead. You install the plugin once, connect Daffy in the browser, and the 12 tools above work from chat. There is no SDK and no config file, and the Daffy key you paste at setup is stored server-side rather than kept in your environment. Choosing between them? Read the full Composio alternatives comparison.
Troubleshooting
Hermes paired but still can't use Daffy
Pairing is a two-step handshake: run hermes clawlink begin, approve the link in your browser, then run hermes clawlink finish. If you ran finish before approving, or the approval link expired, run hermes clawlink begin again to get a fresh link. Confirm the plugin was installed with --enable, then verify with hermes clawlink test.
Connection succeeds but no tools appear
Reconnect Daffy from the dashboard, then start a fresh chat if the runtime still has the old tool catalog loaded.
"Tool schema not loaded yet" error when calling Daffy tools
Daffy tool schemas load on demand the first time a tool runs and are cached after that, so this error usually clears on its own: wait a few seconds and retry the same request. If every Daffy call keeps failing with it in a fresh chat, reconnect from the dashboard, and contact support if it still persists — that pattern points to a configuration problem on our side, not something you can fix by reconnecting again.
Daffy returns 403 or "permission denied" on one action while others work
Two usual causes. The connected account may not have access to the specific workspace, inbox, store, or project in the request — check that first. If access looks right, the agent may have sent a placeholder value (like "YOUR_ID" or an example id from documentation) instead of a real one: ask it to run a list or search tool first, then retry the action with a real id from those results. Most failures at this stage are one of these two, not ClawLink bugs.
API key setup works but results look incomplete
Double-check that the API key for Daffy has the right scopes or account access. A valid key can still be too limited for some reads or writes.
FAQ
Is there a Hermes Agent Daffy integration?
Yes. ClawLink is the fastest way to connect Hermes to Daffy: link your Daffy account once in the browser and Hermes Agent can call the Daffy API through 12 ready-made tools — no custom code or token handling.
How do I connect Daffy to Hermes with ClawLink?
Install the plugin with hermes plugins install ClawLink-HQ/hermes-plugin --enable, then pair once: run hermes clawlink begin, approve the link in your browser, and run hermes clawlink finish. Connect Daffy in the dashboard and Hermes can use it from the next message — no config files, and the Daffy key you paste is stored server-side instead of in your environment.
How long does it take to connect Daffy to Hermes Agent?
About two minutes. Sign in, click Connect next to Daffy in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring Daffy up myself?
The alternative to ClawLink is usually manual API key setup plus your own token handling, permission troubleshooting, and tool plumbing for Hermes Agent. That is fine if you want to build and maintain the integration yourself. Most teams just want Daffy working from chat.
Hermes paired but still can't use Daffy
Pairing is a two-step handshake: run hermes clawlink begin, approve the link in your browser, then run hermes clawlink finish. If you ran finish before approving, or the approval link expired, run hermes clawlink begin again to get a fresh link. Confirm the plugin was installed with --enable, then verify with hermes clawlink test.
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