How to connect TinyPNG to Hermes Agent
Connect TinyPNG to Hermes with ClawLink: paste your TinyPNG key once and 5 tools work from chat. No MCP server to run, nothing stored on your machine.
TinyPNGAPI KEYMCPCompress and optimize images via the TinyPNG API. Once connected, Hermes Agent can read and act on TinyPNG from chat — pairing, token refresh, and tool wiring handled for you.
Most guides for giving Hermes Agent TinyPNG 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 TinyPNG setup: pair once in the browser and your always-on Hermes agent can act on TinyPNG for you, reading and doing real work on your behalf with no auth, token refresh, or tool wiring to build yourself.
Copy this prompt into Hermes to install the plugin and pair your account.
Set up ClawLink for Hermes and tell me when it's ready.
1. Install the plugin:
hermes plugins install ClawLink-HQ/hermes-plugin --enable
2. Start pairing. It prints an approval link, so show me the link and stop, don't wait:
hermes clawlink begin
3. I'll approve it in my browser, then reply "approved".
4. When I say approved, finish setup:
hermes clawlink finish
5. Then run `hermes clawlink test` and tell me whether ClawLink is ready.Setup
It takes three steps to connect Hermes to TinyPNG.
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 TinyPNG
Paste your API key in the dashboard.
- 3
Use it from chat
Ask Hermes Agent: "What can you do with TinyPNG?"
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 TinyPNG in the ClawLink dashboard — paste your TinyPNG API key once.
Verify the connection by asking Hermes:
Pull the relevant data from TinyPNG, 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 TinyPNG is connected in the dashboard, that agent calls the same 5 TinyPNG tools over MCP. Full setup for MCP clients and shell agents: connect apps to any AI agent.
TinyPNG MCP for Hermes
Looking for a TinyPNG MCP server for Hermes Agent? ClawLink connects TinyPNG to Hermes Agent and exposes 5 TinyPNG tools your agent can call over MCP, with hosted auth and nothing to run or maintain yourself. Using OpenClaw instead? The OpenClaw TinyPNG integration works the same way.
What the Hermes Agent TinyPNG integration can do
5 TinyPNG tools are ready for Hermes Agent once the account is connected.
All 5 TinyPNG tools for Hermes
| Tool | What it does |
|---|---|
Get compression count tinypng_get_compression_count | Tool to retrieve the number of compressions made this month. Use when you need to monitor your TinyPNG API usage. |
Shrink and get image ID tinypng_shrink_and_get_image_id | Tool to shrink an image and return its TinyPNG image ID. Use when you need only the compressed image identifier from the API response Location header. |
Tinify compress and store in azure tinypng_tinify_compress_and_store_in_azure | Compress an image using the Tinify API and upload the optimized result directly to Azure Blob Storage in a single operation. |
Tinify output tinypng_tinify_output | Tool to retrieve a compressed image by its image ID. Use after compressing an image to download the result. |
Transform image tinypng_transform_image | Tool to transform a compressed image by resizing, converting format, preserving metadata, or storing to cloud storage. |
Try it: find the TinyPNG tool you need
Browse the 5 TinyPNG 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 TinyPNG, summarize it in plain English, and point out anything that needs attention.
Use TinyPNG to shrink and get image id and walk me through the result in plain English.
Use TinyPNG to tinify compress and store in azure and walk me through the result in plain English.
Use TinyPNG to tinify output and walk me through the result in plain English.
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 TinyPNG working from chat.
| Manual | ClawLink | |
|---|---|---|
| Credential handling | Collect, validate, store, and rotate the TinyPNG API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected TinyPNG 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 TinyPNG. | 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 TinyPNG actions to the runtime in a format your agent can reliably use. | 5 tools for TinyPNG are already exposed through ClawLink, so the agent can read and act from chat immediately. |
ClawLink vs. Composio
Composio also exposes TinyPNG 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 TinyPNG in the browser, and the 5 tools above work from chat. There is no SDK and no config file, and the TinyPNG 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 TinyPNG
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 TinyPNG 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 TinyPNG tools
TinyPNG 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 TinyPNG 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.
TinyPNG 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 TinyPNG 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 TinyPNG integration?
Yes. ClawLink is the fastest way to connect Hermes to TinyPNG: link your TinyPNG account once in the browser and Hermes Agent can call the TinyPNG API through 5 ready-made tools — no custom code or token handling.
How do I connect TinyPNG 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 TinyPNG in the dashboard and Hermes can use it from the next message — no config files, and the TinyPNG key you paste is stored server-side instead of in your environment.
How long does it take to connect TinyPNG to Hermes Agent?
About two minutes. Sign in, click Connect next to TinyPNG in the dashboard, authenticate, and Hermes Agent can use it from the next chat message.
Why use ClawLink instead of wiring TinyPNG 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 TinyPNG working from chat.
Hermes paired but still can't use TinyPNG
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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