How to connect OpenUI Cloud to Hermes Agent
Connect OpenUI Cloud to Hermes with ClawLink: paste your OpenUI Cloud key once and 8 tools work from chat. No MCP server to run, nothing stored on your machine.
OpenUI CloudAPI KEYMCPOpenUI Cloud by Thesys generates interactive user interfaces and manages conversations and artifacts through OpenAI-compatible APIs.. Once connected, Hermes Agent can read and act on OpenUI Cloud from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent OpenUI Cloud 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 OpenUI Cloud setup: pair once in the browser and your always-on Hermes agent can act on OpenUI Cloud 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 OpenUI Cloud.
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 OpenUI Cloud
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with OpenUI Cloud?"
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 OpenUI Cloud in the ClawLink dashboard — paste your OpenUI Cloud API key once.
Verify the connection by asking Hermes:
Pull the relevant data from OpenUI Cloud, 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 OpenUI Cloud is connected in the dashboard, that agent calls the same 8 OpenUI Cloud tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
OpenUI Cloud MCP for Hermes
Looking for a OpenUI Cloud MCP server for Hermes Agent? ClawLink connects OpenUI Cloud to Hermes Agent and exposes 8 OpenUI Cloud tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw OpenUI Cloud integration works the same way.
What the Hermes Agent OpenUI Cloud integration can do
8 OpenUI Cloud tools are ready for Hermes Agent once the account is connected. The 7 below are the ones people reach for most; your agent can call all 8.
7 of 8 OpenUI Cloud tools for Hermes
| Tool | What it does |
|---|---|
Get artifact openui_get_artifact | Retrieve one persisted OpenUI artifact, including its complete renderable content |
List artifacts openui_list_artifacts | List persisted OpenUI artifacts, optionally filtering by name or artifact kinds, one |
List conversation items openui_list_conversation_items | Read one cursor-controlled page of persisted messages and function-call items from a managed |
List conversations openui_list_conversations | List managed OpenUI conversations visible to the connected organization, one cursor-controlled |
Create conversation openui_create_conversation | Create a managed OpenUI conversation that can receive persisted turns from Generate UI |
Generate ui openui_generate_ui | Generate an OpenUI response from text or structured Responses API input |
Rename conversation openui_rename_conversation | Change the title of an existing managed OpenUI conversation |
Try it: find the OpenUI Cloud tool you need
Browse the 7 OpenUI Cloud 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 OpenUI Cloud, summarize it in plain English, and point out anything that needs attention.
List the relevant items in OpenUI Cloud, group them by priority, and recommend what Hermes should do next.
List the relevant items in OpenUI Cloud, group them by priority, and recommend what Hermes should do next.
List the relevant items in OpenUI Cloud, group them by priority, and recommend what Hermes should do next.
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 OpenUI Cloud working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the OpenUI Cloud API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected OpenUI Cloud 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 OpenUI Cloud. | 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 OpenUI Cloud actions to the runtime in a format your agent can reliably use. | 8 tools for OpenUI Cloud are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes OpenUI Cloud 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 OpenUI Cloud in the browser, and the 8 tools above work from chat. There is no SDK and no config file, and the OpenUI Cloud 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 OpenUI Cloud
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 OpenUI Cloud 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 OpenUI Cloud tools
OpenUI Cloud 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 OpenUI Cloud 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.
OpenUI Cloud 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 OpenUI Cloud 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 OpenUI Cloud integration?
Yes. ClawLink is the fastest way to connect Hermes to OpenUI Cloud: link your OpenUI Cloud account once in the browser and Hermes Agent can call the OpenUI Cloud API through 8 ready-made tools — no custom code or token handling.
How do I connect OpenUI Cloud 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 OpenUI Cloud in the dashboard and Hermes can use it from the next message — no config files, and the OpenUI Cloud key you paste is stored server-side instead of in your environment.
How long does it take to connect OpenUI Cloud to Hermes Agent?
About two minutes. Sign in, click Connect next to OpenUI Cloud in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring OpenUI Cloud 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 OpenUI Cloud working from chat.
Hermes paired but still can't use OpenUI Cloud
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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