How to connect CaptureKit to Hermes Agent
Connect CaptureKit to Hermes with ClawLink: paste your CaptureKit key once and 5 tools work from chat. No MCP server to run, nothing stored on your machine.
CaptureKitAPI KEYMCPCaptureKit captures webpage screenshots, extracts structured web content, crawls pages, and analyzes websites with AI.. Once connected, Hermes Agent can read and act on CaptureKit from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent CaptureKit 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 CaptureKit setup: pair once in the browser and your always-on Hermes agent can act on CaptureKit 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 CaptureKit.
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 CaptureKit
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with CaptureKit?"
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 CaptureKit in the ClawLink dashboard — paste your CaptureKit API key once.
Verify the connection by asking Hermes:
Use CaptureKit to analyze webpage and walk me through the result in plain English.
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 CaptureKit is connected in the dashboard, that agent calls the same 5 CaptureKit tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
CaptureKit MCP for Hermes
Looking for a CaptureKit MCP server for Hermes Agent? ClawLink connects CaptureKit to Hermes Agent and exposes 5 CaptureKit tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw CaptureKit integration works the same way.
What the Hermes Agent CaptureKit integration can do
5 CaptureKit tools are ready for Hermes Agent once the account is connected.
All 5 CaptureKit tools for Hermes
| Tool | What it does |
|---|---|
Analyze webpage capturekit_analyze_webpage | Analyze a webpage with AI to identify its summary, value proposition, features, categories, use |
Capture webpage capturekit_capture_webpage | Capture a webpage as an image or PDF and return a downloadable file reference |
Extract webpage content capturekit_extract_webpage_content | Extract webpage metadata and links, optionally including rendered HTML, Markdown, sitemap data |
Fetch page HTML capturekit_fetch_page_html | Fetch a webpage's raw HTML without browser rendering for fast scraping, audits, or monitoring |
Get usage capturekit_get_usage | Return the connected workspace's current CaptureKit allowance, usage, API-key status, quotas |
Try it: find the CaptureKit tool you need
Browse the 5 CaptureKit tools
Click any tool to see exactly what Hermes can do and copy a ready-to-use prompt.
Example prompts
Use CaptureKit to analyze webpage and walk me through the result in plain English.
Use CaptureKit to capture webpage and walk me through the result in plain English.
Use CaptureKit to extract webpage content and walk me through the result in plain English.
Pull the relevant data from CaptureKit, 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 CaptureKit working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the CaptureKit API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected CaptureKit 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 CaptureKit. | 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 CaptureKit actions to the runtime in a format your agent can reliably use. | 5 tools for CaptureKit are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes CaptureKit 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 CaptureKit in the browser, and the 5 tools above work from chat. There is no SDK and no config file, and the CaptureKit 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 CaptureKit
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 CaptureKit 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 CaptureKit tools
CaptureKit 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 CaptureKit 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.
CaptureKit 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 CaptureKit 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 CaptureKit integration?
Yes. ClawLink is the fastest way to connect Hermes to CaptureKit: link your CaptureKit account once in the browser and Hermes Agent can call the CaptureKit API through 5 ready-made tools — no custom code or token handling.
How do I connect CaptureKit 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 CaptureKit in the dashboard and Hermes can use it from the next message — no config files, and the CaptureKit key you paste is stored server-side instead of in your environment.
How long does it take to connect CaptureKit to Hermes Agent?
About two minutes. Sign in, click Connect next to CaptureKit in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring CaptureKit 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 CaptureKit working from chat.
Hermes paired but still can't use CaptureKit
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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