# How to connect Omnisend to Hermes Agent (no API keys) > Connect Omnisend to Hermes with ClawLink in one click — 43 tools your AI agent can call from chat via hosted OAuth. No API keys, no manual setup. Web version: https://claw-link.dev/hermes/omnisend Most guides for giving Hermes Agent Omnisend 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 Omnisend setup: pair once in the browser and your always-on Hermes agent can act on Omnisend 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 Omnisend. 1. **Install ClawLink** — add the plugin to Hermes Agent once. 2. **Connect Omnisend** — 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 omnisend # connect Omnisend (browser OAuth) npx -y @useclawlink/cli actions omnisend # list available actions npx -y @useclawlink/cli run omnisend --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 Omnisend in the [ClawLink dashboard](https://claw-link.dev/dashboard) — a one-click OAuth approval, no API keys. Verify the connection by asking Hermes: > Create it in Omnisend for me, then confirm the important fields before you finish. ### 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 Omnisend is connected in the dashboard, that agent calls the same 43 Omnisend 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). ## Omnisend MCP for Hermes Looking for a Omnisend MCP server for Hermes Agent? ClawLink connects Omnisend to Hermes Agent and exposes 43 Omnisend 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 Omnisend integration](https://claw-link.dev/openclaw/omnisend) works the same way. ## What the Hermes Agent Omnisend integration can do 43 Omnisend tools are ready for Hermes Agent once the account is connected. The 30 below are the ones people reach for most; your agent can call all 43. ### 30 of 43 Omnisend tools for Hermes | Tool | What it does | |---|---| | **Create batch** `omnisend_create_batch` | Create an Omnisend batch operation | | **Create cart** `omnisend_create_cart` | Create an Omnisend cart | | **Create category** `omnisend_create_category` | Create an Omnisend category | | **Create or update contact** `omnisend_create_or_update_contact` | Create or update an Omnisend contact | | **Create order** `omnisend_create_order` | Create an Omnisend order | | **Create product** `omnisend_create_product` | Create an Omnisend product | | **Get batch information** `omnisend_get_batch_information` | Get Omnisend batch information | | **Get batches** `omnisend_get_batches` | List Omnisend batches | | **Get brand** `omnisend_get_brand` | Get Omnisend brand info | | **Get cart** `omnisend_get_cart` | Get an Omnisend cart | | **Get category** `omnisend_get_category` | Get an Omnisend category | | **Get contact** `omnisend_get_contact` | Get an Omnisend contact | | **Get order** `omnisend_get_order` | Get an Omnisend order | | **Get product** `omnisend_get_product` | Get an Omnisend product | | **List campaigns** `omnisend_list_campaigns` | List Omnisend campaigns | | **Get batch item** `omnisend_get_batch_item` | Retrieve a specific item within a batch by batchID and itemID | | **Get batch items** `omnisend_get_batch_items` | Retrieve processed items of a specific batch by ID | | **Get product category** `omnisend_get_product_category` | Retrieve a specific product category by ID | | **List carts** `omnisend_list_carts` | Retrieve a paginated list of carts with optional filtering | | **List categories** `omnisend_list_categories` | Retrieve a paginated list of product categories | | **List contacts** `omnisend_list_contacts` | Retrieve a paginated list of contacts with optional filtering | | **List events** `omnisend_list_events` | Retrieve all custom events created in Omnisend app | | **List product categories** `omnisend_list_product_categories` | Retrieve a paginated list of product categories from the Omnisend catalog | | **List products** `omnisend_list_products` | Retrieve a paginated list of products | | **Add cart product** `omnisend_add_cart_product` | Add a product to a cart in Omnisend (v3 API) | | **Create product category** `omnisend_create_product_category` | Create a new product category in the Omnisend catalog | | **Replace cart** `omnisend_replace_cart` | Replace an existing cart in Omnisend using the v3 API | | **Replace cart product** `omnisend_replace_cart_product` | Replace a product in a cart using Omnisend v3 API | | **Replace category** `omnisend_replace_category` | Replace a category's title by ID | | **Replace order** `omnisend_replace_order` | Completely replace an existing order in Omnisend | ## Example prompts **Create Batch** > Create it in Omnisend for me, then confirm the important fields before you finish. **Create Cart** > Create it in Omnisend for me, then confirm the important fields before you finish. **Create Category** > Create it in Omnisend for me, then confirm the important fields before you finish. **Create Or Update Contact** > Create it in Omnisend for me, then confirm the important fields before you finish. ## ClawLink vs. building it yourself The alternative to ClawLink is usually manual OAuth app 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 Omnisend working from chat. | | Manual | ClawLink | |---|---|---| | **Connection flow** | Register a Omnisend app, configure redirect URLs, manage consent details, and reconnect users when auth settings drift. | Users connect Omnisend through the hosted browser flow and ClawLink keeps the token lifecycle out of your app code. | | **Ongoing maintenance** | You own refresh logic, permission debugging, environment config, and every provider-specific edge case for Omnisend. | 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 Omnisend actions to the runtime in a format your agent can reliably use. | 43 tools for Omnisend are already exposed through ClawLink, so the agent can read and act from chat immediately. | ## ClawLink vs. Composio Composio also exposes Omnisend 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 Omnisend in the browser, and the 43 tools above work from chat. There is no SDK, no config file, and no API key handling. Choosing between them? Read the full [Composio alternatives](https://claw-link.dev/hub/composio-alternatives) comparison. ### Hermes paired but still can't use Omnisend 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 Omnisend 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 Omnisend tools Omnisend 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 Omnisend 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. ### Omnisend 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. ### OAuth finished in the browser but the account is still missing Try reconnecting Omnisend and complete the consent flow in the same browser session. Partial OAuth approvals or switching accounts mid-flow can leave the connection incomplete. ### Is there a Hermes Agent Omnisend integration? Yes. ClawLink is the fastest way to connect Hermes to Omnisend: link your Omnisend account once in the browser and Hermes Agent can call the Omnisend API through 43 ready-made tools — no custom code or token handling. ### How do I connect Omnisend 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 Omnisend in the dashboard and Hermes can use it from the next message — no config files or API keys to manage. ### How long does it take to connect Omnisend to Hermes Agent? About two minutes. Sign in, click Connect next to Omnisend in the dashboard, authenticate, and Hermes Agent can use it from the next chat message. ### Why use ClawLink instead of wiring Omnisend up myself? The alternative to ClawLink is usually manual OAuth app 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 Omnisend working from chat. ### Hermes paired but still can't use Omnisend 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 - [Connect 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