--- title: "Connect Willo to Customer.io - APIANT.ai" description: "When \"List Users\" fires in Willo, your agent runs \"Send transactional email\" in Customer.io." canonical: "https://apiant.ai/connect/willo-to-customer-io" --- # Connect Willo to Customer.io When **List Users** fires in [Willo](https://apiant.ai/connections/willo), your agent runs **Send transactional email** in [Customer.io](https://apiant.ai/connections/customer-io). Describe the whole flow and it is built, tested on every scenario and kept running. Willo **1** trigger Willo **19** actions Customer.io **10** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Willo and Customer.io to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. 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 Willo can start in Customer.io - When **List Users** in Willo then **Send transactional email** in Customer.io - When **List Users** in Willo then **Create Anonymous Event** in Customer.io 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 Willo and Customer.io ## Triggers and actions 1 trigger · 29 actions - Trigger **List Users** Triggers when a new user is added to your Willo account. - Action **Accept Candidate** Marks a participant in a Willo interview as Accepted and returns the updated participant. Can also update the participant's name, phone number and custom ID in the same step. - Action **Add department** Creates a new department in your Willo organisation and returns the department, including its key and branding. - Action **Add interview from template** Creates a new interview in Willo from one of your interview templates and returns the new interview. - Action **Create Company** Creates a new company as a child organisation under your Willo organisation, with the owner you name. - Action **Create Interview** Creates a new video interview in Willo with its questions, department, message templates and settings. - Action **Delete interview** Deletes an interview from your Willo account. - Action **Delete participant** Deletes a participant from Willo. Returns whether the deletion was confirmed. - Action **Get interview** Returns a Willo interview by its key, including its questions, owner, department, reviewers, message templates and settings. An error occurs if the interview is not found. - Action **Get participant** Returns a Willo participant (candidate) with their contact details, status, interview, department, scores and answers. - Action **Get user** Returns a Willo user's details, including email, full name, phone, role and status. - Action **Invite Someone** Invites a person to a Willo interview as a participant and returns the new participant with their invite link. - Action **List departments** Returns the departments in your Willo organisation, optionally filtered by name, owner email or owner. - Action **List interviews** Returns the interviews in your Willo account, optionally narrowed by department, owner or a search term, and sorted the way you choose. - Action **List message templates** Returns the message templates (email and SMS) in your Willo account, optionally filtered by title, type or trigger. - Action **List participants** Returns the participants in your Willo account, optionally narrowed to an interview, department or owner, or by a text search. - Action **List users** Returns the users in your Willo account with their key, email and full name. - Action **Reject Candidate** Rejects a candidate by setting the participant's status to Rejected, optionally updating their name, phone or custom ID. - Action **Update interview** Updates an existing interview's details, questions, reviewers, message templates and settings, changing only the values you provide. Returns the updated interview. - Action **Update participant** Updates a participant's name, phone, status (Accepted or Rejected) or your own reference ID. - Action **Create Anonymous Event** Records an event that isn't tied to a known person yet, such as a page view or an action by a visitor. Include an anonymous id to link the event to a person later. - Action **Create Event** Records an event for a person in Customer.io, which can trigger campaigns or update segments. - Action **Delete person** Deletes a person from your Customer.io workspace, identified by their id, email address or Customer.io id. - Action **Get person** Look up a customer's attributes by customer_id. - Action **List segments** List all manual and data-driven segments in the workspace. - Action **Merge people** Merges a duplicate person into a primary person. The secondary person's attributes and activity move to the primary person, and the secondary person is deleted. - Action **Remove people from segment** Removes people from a manual segment in Customer.io. Data-driven segments can't be changed this way. - Action **Send API-triggered broadcast** Trigger an API-triggered broadcast campaign to send immediately. - Action **Send transactional email** Send a one-off transactional email via a transactional message template. - Action **Suppress person** Deletes a person from your Customer.io workspace and suppresses their identifiers so nobody can be added again with the same id, email or phone. Activity attributed to them is redacted. ## Each app on its own - [ **Willo** Willo helps you get answers to your questions faster with video interviewing.](https://apiant.ai/connections/willo) - [ **Customer.io** With Customer.io you can send email, SMS, and push based on what people do or don't do in your app.](https://apiant.ai/connections/customer-io) Reviews ## What our customers say ## More from Willo - [ **Willo to Zoom** Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based...](https://apiant.ai/connect/willo-to-zoom) - [ **Willo to Wix** The Wix website builder gives businesses of any size the tools to create, manage and grow a fully integrated...](https://apiant.ai/connect/willo-to-wix) - [ **Willo to LinkedIn** LinkedIn is a professional networking platform enabling job seekers, companies, and thought leaders to...](https://apiant.ai/connect/willo-to-linkedin) - [ **Willo to Facebook** Facebook is a social media and advertising platform used by individuals and businesses to connect, share...](https://apiant.ai/connect/willo-to-facebook) - [ **Willo to Anthropic** Anthropic builds Claude, a family of large language models.](https://apiant.ai/connect/willo-to-anthropic) - [ **Willo to Supabase** Supabase is an open-source backend-as-a-service providing a Postgres database, authentication, storage, and...](https://apiant.ai/connect/willo-to-supabase) ## More into Customer.io - [ **HubSpot to Customer.io** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-customer-io) - [ **Wistia to Customer.io** Wistia makes it easy to host, track, and measure video engagement online.](https://apiant.ai/connect/wistia-to-customer-io) - [ **Salesforce to Customer.io** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-customer-io) - [ **Slack to Customer.io** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-customer-io) - [ **Google Sheets to Customer.io** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-customer-io) - [ **Gmail to Customer.io** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-customer-io) Questions ## Willo and Customer.io, answered ### ### What can start an automation from Willo? Any of Willo's 1 trigger in the catalog, including List Users. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Customer.io when something happens in Willo? Any of Customer.io's 10 actions, including Create Anonymous Event, Create Event, Send API-triggered broadcast and Send transactional email. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Customer.io to Willo? Customer.io has no triggers in the catalog today, so automations start in Willo. If you need the other direction, ask: your agent reads Customer.io's API documentation and adds it. ### ### Do I have to build a connector for Willo or Customer.io? 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. ### ### Can my AI client use Willo and Customer.io without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### 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.