Integration
Connect MailerSend and Willo
When Email Is Clicked Through fires in MailerSend, your agent runs Add department in Willo, or List Users in Willo to Send an Email in MailerSend. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want MailerSend and Willo to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne 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.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)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)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)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)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)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)Example flows
What MailerSend and Willo can do together
From MailerSend to Willo
When Email Is Clicked Through in MailerSend
then Add department in Willo
When Email Is Delivered in MailerSend
then Add interview from template in Willo
From Willo to MailerSend
When List Users in Willo
then Send an Email in MailerSend
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 MailerSend and Willo
Triggers and actions 12 triggers · 20 actions
Trigger
Email Is Clicked ThroughTriggers when the recipient clicks on a link.
Trigger
Email Is DeliveredTriggers when an email is delivered.
Trigger
Email Is Hard BouncedTriggers when an email is hard bounced.
Trigger
Email Is OpenedTriggers when an email is opened.
Trigger
Email Is Reported as SpamTriggers when an email is reported as spam.
Trigger
Email Is SentTriggers when an email is sent.
Trigger
Email Is Soft BouncedTriggers when an email is soft bounced.
Trigger
Recipient Has UnsubscribedTriggers when a recipient unsubscribes from your mailing activity.
Trigger
SMS Delivery FailedTriggers when SMS failed to deliver.
Trigger
SMS Is DeliveredTriggers when SMS is delivered.
Trigger
SMS Is SentTriggers when SMS is sent.
Action
Send an EmailSend an email via your MailerSend account.
Trigger
List UsersTriggers when a new user is added to your Willo account.
Action
Accept CandidateMarks 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 departmentCreates a new department in your Willo organisation and returns the department, including its key and branding.
Action
Add interview from templateCreates a new interview in Willo from one of your interview templates and returns the new interview.
Action
Create CompanyCreates a new company as a child organisation under your Willo organisation, with the owner you name.
Action
Create InterviewCreates a new video interview in Willo with its questions, department, message templates and settings.
Action
Delete interviewDeletes an interview from your Willo account.
Action
Delete participantDeletes a participant from Willo. Returns whether the deletion was confirmed.
Action
Get interviewReturns 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 participantReturns a Willo participant (candidate) with their contact details, status, interview, department, scores and answers.
Action
Get userReturns a Willo user's details, including email, full name, phone, role and status.
Action
Invite SomeoneInvites a person to a Willo interview as a participant and returns the new participant with their invite link.
Action
List departmentsReturns the departments in your Willo organisation, optionally filtered by name, owner email or owner.
Action
List interviewsReturns the interviews in your Willo account, optionally narrowed by department, owner or a search term, and sorted the way you choose.
Action
List message templatesReturns the message templates (email and SMS) in your Willo account, optionally filtered by title, type or trigger.
Action
List participantsReturns the participants in your Willo account, optionally narrowed to an interview, department or owner, or by a text search.
Action
List usersReturns the users in your Willo account with their key, email and full name.
Action
Reject CandidateRejects a candidate by setting the participant's status to Rejected, optionally updating their name, phone or custom ID.
Action
Update interviewUpdates an existing interview's details, questions, reviewers, message templates and settings, changing only the values you provide. Returns the updated interview.
Action
Update participantUpdates a participant's name, phone, status (Accepted or Rejected) or your own reference ID.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
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Questions
MailerSend and Willo, answered
What can start an automation from MailerSend?
Any of MailerSend's 11 triggers in the catalog, including Email Is Clicked Through, Email Is Delivered, Email Is Hard Bounced and Email Is Opened. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Willo when something happens in MailerSend?
Any of Willo's 19 actions, including Create Company, Create Interview, Update interview and Update participant. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Willo to MailerSend?
Yes. When something happens in Willo, your agent can act in MailerSend too. This page covers both directions: Willo's triggers and MailerSend's actions are listed here as well.
Do I have to build a connector for MailerSend or Willo?
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 MailerSend and Willo 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.