Integration
Connect Handwrytten and Mailosaur
When something happens in Handwrytten or Mailosaur, your agent does the next thing in the other. Describe it 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 Handwrytten and Mailosaur to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiAny 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 Handwrytten and Mailosaur can do together
From Handwrytten to Mailosaur
When Address List in Handwrytten
then Add server in Mailosaur
When Address List in Handwrytten
then Send email in Mailosaur
From Mailosaur to Handwrytten
When New message in Mailosaur
then Add Order to Basket in Handwrytten
When New message in Mailosaur
then Create Contact in Handwrytten
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 Handwrytten and Mailosaur
Triggers and actions 2 triggers · 17 actions
Trigger
Address ListTriggers when Recipient Addresses are needed.
Action
Add Order to BasketAdds an order to a basket. If sending multiple cards at once, use this for each order, then check-out with Send Basket
Action
Create ContactCreates a new address book entry for the Handwrytten address book. (Note: other zaps don't really use the address book, but the rest of Handwrytten does.).
Action
Create Custom CardCreates a new custom 5x7 card with full bleed cover, using specified images, fonts, and logos.
Action
Empty BasketClears your basket.
Action
Find ContactFinds a contact in your address book.
Action
Update ContactUpdates an entry in the Handwrytten address book.
Action
Upload Custom ImageAdds an image to Handwrytten for use in custom card designs.
Trigger
New messageFires when a new email/SMS arrives in a server.
Action
Add serverCreate a server (inbox).
Action
Delete messageDelete a message.
Action
Delete serverDelete a server.
Action
Find messages by criteriaSearch messages by sentFrom/sentTo/subject/body.
Action
Get messageRetrieve one email/SMS message.
Action
Get serverRetrieve a server.
Action
List messagesList messages in a server.
Action
List serversList servers (inboxes).
Action
Send emailSend an email.
Action
Update serverUpdate a server.
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
What our customers say
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Questions
Handwrytten and Mailosaur, answered
What can start an automation from Handwrytten?
Any of Handwrytten's 1 trigger in the catalog, including Address List. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Mailosaur when something happens in Handwrytten?
Any of Mailosaur's 10 actions, including Send email, Update server, Add server and Find messages by criteria. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Mailosaur to Handwrytten?
Yes. When something happens in Mailosaur, your agent can act in Handwrytten too. This page covers both directions: Mailosaur's triggers and Handwrytten's actions are listed here as well.
Do I have to build a connector for Handwrytten or Mailosaur?
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.