# How to connect TinyPNG to Hermes Agent (paste one key, 5 tools) > 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. Web version: https://claw-link.dev/hermes/tinypng 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. **Start here — paste this into Hermes to set up ClawLink:** > 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 with `hermes clawlink begin`. It prints an approval link, so show me the link and stop, don't wait. > 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. 1. **Install ClawLink** — add the plugin to Hermes Agent once. 2. **Connect TinyPNG** — one-click OAuth in the ClawLink dashboard. 3. **Use it from chat** — ask Hermes Agent in plain English. **Alternative for any agent (no plugin needed):** if the Hermes Agent plugin route isn't available or doesn't work, any AI agent with shell access can use the ClawLink CLI instead: ```bash npx -y @useclawlink/cli login # sign in via browser — no API key to paste npx -y @useclawlink/cli connect tinypng # connect TinyPNG (browser OAuth) npx -y @useclawlink/cli actions tinypng # list available actions npx -y @useclawlink/cli run tinypng --input '' # execute (add --confirm for writes) ``` ### Install by command The prompt above walks Hermes through this. By hand, it is four commands and a browser approval: ```bash 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 test ``` Then connect TinyPNG in the [ClawLink dashboard](https://claw-link.dev/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: ```bash npx -y @useclawlink/cli login ``` `login` 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](https://claw-link.dev/learn/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](https://claw-link.dev/learn/what-is-an-mcp-server), with [hosted auth](https://claw-link.dev/learn/oauth-for-ai-agents) and nothing to run or maintain yourself. Using OpenClaw instead? The [OpenClaw TinyPNG integration](https://claw-link.dev/openclaw/tinypng) 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. | ## Example prompts **Get Compression Count** > Pull the relevant data from TinyPNG, summarize it in plain English, and point out anything that needs attention. **Shrink And Get Image Id** > Use TinyPNG to shrink and get image id and walk me through the result in plain English. **Tinify Compress And Store In Azure** > Use TinyPNG to tinify compress and store in azure and walk me through the result in plain English. **Tinify Output** > 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](https://claw-link.dev/hub/composio-alternatives) comparison. ### 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. ### 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`. ## Related - [GitHub tools](https://claw-link.dev/hermes/github) — Manage repositories, issues, pull requests, and workflows - [Connect PagerDuty](https://claw-link.dev/hermes/pagerduty) — Manage incidents, on-call schedules, and services - [Hermes SafetyCulture integration](https://claw-link.dev/hermes/safetyculture) — SafetyCulture (formerly iAuditor) is a workplace operations platform that enables teams to conduct digital inspections, manage audits, track issues, schedule tasks, and maintain compliance through mobile and web applications.