# Connect Particle and Returnless When **New device event (instant)** fires in [Particle](https://apiant.ai/connections/particle), your agent runs **Find customers** in [Returnless](https://apiant.ai/connections/returnless), or **Request Created** in Returnless to **Publish an event** in Particle. Describe the whole flow and it is built, tested on every scenario and kept running. Particle **1** trigger Particle **5** actions Returnless **2** triggers Returnless **16** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Particle and Returnless to do together? Give your AI client this address. `https://mcp.apiant.ai` Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What Particle and Returnless can do together ### From Particle to Returnless - When **New device event (instant)** in Particle then **Find customers** in Returnless - When **New device event (instant)** in Particle then **Add note** in Returnless ### From Returnless to Particle - When **Request Created** in Returnless then **Publish an event** in Particle - When **Return Created** in Returnless then **Execute a logic function** in Particle Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Particle and Returnless ## Triggers and actions 3 triggers · 21 actions - Trigger **New device event (instant)** Fires when a matching device event is published, delivered via a Particle webhook integration. - Action **Execute a logic function** Run a configured Particle Logic function and return its result. - Action **Get ledger instance** Retrieve the current data for a ledger instance (shared cloud/device key-value state). - Action **List devices** List all devices in your account or product fleet. - Action **Publish an event** Publish a custom event to the device cloud so other devices or integrations can subscribe to it. - Action **Set ledger instance data** Update the data stored in a ledger instance. - Trigger **Request Created** Triggers when a customer creates a new return request that needs approval. - Trigger **Return Created** Triggers when a new return is created, including a request once it is approved. - Action **Add note** Adds an internal note to a return or return request. - Action **Add Request** Creates a return request in Returnless for items from an existing sales order. - Action **Approve a Request** Approves a return request in Returnless so the customer can send the items back. - Action **Approve a Request Without Shipment** Approves a pending return request without a return shipment, so the customer keeps the items. - Action **Find customers** Returns the customers in your Returnless account that match an email address. - Action **Find products** Returns the products in your Returnless account that match a SKU. - Action **Find Requests** Finds a Request in your Returnless account. - Action **Find Returns** Finds returns (return orders) in Returnless by return number. - Action **Find sales orders** Finds sales orders in Returnless by order number. - Action **Get customer** Returns a single Returnless customer by its id. - Action **Get Request (By Request ID)** Returns a single return request (return order) from Returnless by its ID. - Action **Get Return (By Return ID)** Returns a single return in Returnless, with all of its details, by its return ID. - Action **Get sales order** Returns a single sales order by its ID, including its customer, address and order details. - Action **List return reasons** Returns the return reasons configured in your Returnless account. - Action **Reject Request** Rejects a pending return request in Returnless. - Action **Update return** Changes the status of a return, such as Checked, Approved or Resolved. ## Each app on its own - [ **Particle** Particle is an Internet of Things (IoT) device platform that enables businesses to easily add the power of...](https://apiant.ai/connections/particle) - [ **Returnless** Returnless gives e-commerce businesses a way to get their returns in check.](https://apiant.ai/connections/returnless) Reviews ## What our customers say ## More from Particle - [ **Particle to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/particle-to-salesforce) - [ **Particle to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/particle-to-slack) - [ **Particle to Google Sheets** Google Sheets](https://apiant.ai/connect/particle-to-google-sheets) - [ **Particle to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/particle-to-stripe) - [ **Particle to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/particle-to-shopify) - [ **Particle to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/particle-to-quickbooks-online) ## More into Returnless - [ **HubSpot to Returnless** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-returnless) - [ **Google Sheets to Returnless** Google Sheets](https://apiant.ai/connect/google-sheets-to-returnless) - [ **Gmail to Returnless** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-returnless) - [ **Google Calendar to Returnless** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-returnless) - [ **Google Drive to Returnless** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-returnless) - [ **Mailchimp to Returnless** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-returnless) Questions ## Particle and Returnless, answered ### ### What can start an automation from Particle? Any of Particle's 1 trigger in the catalog, including New device event (instant). Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Returnless when something happens in Particle? Any of Returnless's 16 actions, including Update return, Add note, Add Request and Approve a Request. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Returnless to Particle? Yes. When something happens in Returnless, your agent can act in Particle too. This page covers both directions: Returnless's triggers and Particle's actions are listed here as well. ### ### Do I have to build a connector for Particle or Returnless? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.