# How to connect Simplero to Hermes Agent (paste one key, 19 tools) > Connect Simplero to Hermes with ClawLink: paste your Simplero key once and 19 tools work from chat. No MCP server to run, nothing stored on your machine. Web version: https://claw-link.dev/hermes/simplero Most guides for giving Hermes Agent Simplero 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 Simplero setup: pair once in the browser and your always-on Hermes agent can act on Simplero 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 Simplero. 1. **Install ClawLink** — add the plugin to Hermes Agent once. 2. **Connect Simplero** — one-click OAuth in the ClawLink dashboard. 3. **Use it from chat** — ask Hermes Agent in plain English. **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. **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 simplero # connect Simplero (browser OAuth) npx -y @useclawlink/cli actions simplero # list available actions npx -y @useclawlink/cli run simplero --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 Simplero in the [ClawLink dashboard](https://claw-link.dev/dashboard) — paste your Simplero API key once. Verify the connection by asking Hermes: > Use Simplero to find contact by email 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: ```bash npx -y @useclawlink/cli login ``` `login` opens the same browser approval and stores a credential locally. Once Simplero is connected in the dashboard, that agent calls the same 19 Simplero 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). ## Simplero MCP for Hermes Looking for a Simplero MCP server for Hermes Agent? ClawLink connects Simplero to Hermes Agent and exposes 19 Simplero 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 Simplero integration](https://claw-link.dev/openclaw/simplero) works the same way. ## What the Hermes Agent Simplero integration can do 19 Simplero tools are ready for Hermes Agent once the account is connected. ### All 19 Simplero tools for Hermes | Tool | What it does | |---|---| | **Find contact by email** `simplero_find_contact_by_email` | Find and retrieve a contact by email address | | **Find subscription by email** `simplero_find_subscription_by_email` | Find subscriptions for a specific list by email address | | **Get admin roles** `simplero_get_admin_roles` | Retrieve all available admin roles for the account including custom roles | | **Get administrator by ID** `simplero_get_administrator_by_id` | Retrieve a single administratorship by internal ID | | **Get administrators** `simplero_get_administrators` | Retrieve all administratorships for the account | | **Get async request status** `simplero_get_async_request_status` | Check the status of an asynchronous API request | | **Get contact by ID** `simplero_get_contact_by_id` | Retrieve a JSON representation of a contact by internal ID | | **Get invoices** `simplero_get_invoices` | Get invoice information with optional filtering by date and invoice number | | **Get lists** `simplero_get_lists` | Retrieve all mailing lists configured in the account | | **Get products** `simplero_get_products` | List all products in the account | | **Add tag to contact** `simplero_add_tag_to_contact` | Add a tag to a contact identified by email address | | **Bulk subscribe to list** `simplero_bulk_subscribe_to_list` | Add multiple subscribers to a list in a single asynchronous request (max 1,000 per request) | | **Create or update administrator** `simplero_create_or_update_administrator` | Create a new administratorship or update an existing one with the same email | | **Create or update contact** `simplero_create_or_update_contact` | Create a new contact or update an existing contact with the same email | | **Subscribe to list** `simplero_subscribe_to_list` | Add a new subscriber to a specific mailing list | | **Update contact credentials** `simplero_update_contact_credentials` | Update a contact's login credentials including email, first name, and last name | | **Remove administrator** `simplero_remove_administrator` | Delete an administratorship by ID | | **Remove tag from contact** `simplero_remove_tag_from_contact` | Remove a tag from a contact identified by email address | | **Unsubscribe from list** `simplero_unsubscribe_from_list` | Unsubscribe a customer from a specific mailing list | ## Example prompts **Find Contact By Email** > Use Simplero to find contact by email and walk me through the result in plain English. **Find Subscription By Email** > Use Simplero to find subscription by email and walk me through the result in plain English. **Get Admin Roles** > Pull the relevant data from Simplero, summarize it in plain English, and point out anything that needs attention. **Get Administrator By Id** > Pull the relevant data from Simplero, 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 Simplero working from chat. | | Manual | ClawLink | |---|---|---| | **Credential handling** | Collect, validate, store, and rotate the Simplero API key yourself, then make sure every tool call uses the right account. | Users complete the hosted ClawLink setup once and the connected Simplero 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 Simplero. | 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 Simplero actions to the runtime in a format your agent can reliably use. | 19 tools for Simplero are already exposed through ClawLink, so the agent can read and act from chat immediately. | ## ClawLink vs. Composio Composio also exposes Simplero 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 Simplero in the browser, and the 19 tools above work from chat. There is no SDK and no config file, and the Simplero 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 Simplero 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 Simplero 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 Simplero tools Simplero 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 Simplero 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. ### Simplero 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 Simplero 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 Simplero integration? Yes. ClawLink is the fastest way to connect Hermes to Simplero: link your Simplero account once in the browser and Hermes Agent can call the Simplero API through 19 ready-made tools — no custom code or token handling. ### How do I connect Simplero 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 Simplero in the dashboard and Hermes can use it from the next message — no config files, and the Simplero key you paste is stored server-side instead of in your environment. ### How long does it take to connect Simplero to Hermes Agent? About two minutes. Sign in, click Connect next to Simplero in the dashboard, authenticate, and Hermes Agent can use it from the next chat message. ### Why use ClawLink instead of wiring Simplero 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 Simplero working from chat. ### Hermes paired but still can't use Simplero 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 - [Hermes ActiveCampaign integration](https://claw-link.dev/hermes/activecampaign) — Marketing automation, CRM, and email marketing - [Benchmark Email](https://claw-link.dev/hermes/benchmark-email) — Benchmark Email is a comprehensive email marketing platform offering tools for creating, sending, and analyzing email campaigns. - [Hermes Mailchimp integration](https://claw-link.dev/hermes/mailchimp) — Create email campaigns and manage audiences