Integration
Connect HelloSign and Mailjet
When New Signature Request fires in HelloSign, your agent runs Remove Contact from List in Mailjet, or New Contact in Mailjet to Get Signature Request Files in HelloSign. 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 HelloSign and Mailjet 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)Mailjet holds your contact lists and sends the mail; Dropbox Sign (HelloSign) handles the paperwork. Joining them means a signature request can create or update the right Mailjet contact and move them between lists, and a contact landing in a Mailjet list can trigger the agreement they need to sign.
Example flows
What HelloSign and Mailjet can do together
From HelloSign to Mailjet
When New Signature Request in HelloSign
then Remove Contact from List in Mailjet
When New Signature Request in HelloSign
then Add Contact to List in Mailjet
From Mailjet to HelloSign
When New Contact in Mailjet
then Get Signature Request Files in HelloSign
When New Contact in List in Mailjet
then Get Signature Request in HelloSign
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 HelloSign and Mailjet
Triggers and actions 4 triggers · 24 actions
Trigger
New Signature RequestTriggers when a new signature request appears in the account.
Action
Cancel Signature RequestCancels an incomplete signature request.
Action
Get AccountReturns information about the current Dropbox Sign account.
Action
Get Signature RequestRetrieves a single signature request by its ID.
Action
Get Signature Request FilesReturns a download URL for the documents of a signature request as a PDF.
Action
List Signature RequestsLists signature requests for the account, paginated and ordered newest first.
Action
List TemplatesLists the reusable templates available to the account.
Action
Send ReminderSends an email reminder to a signer to sign a pending signature request.
Action
Send Signature RequestCreates and sends a new signature request using document file URLs and a list of signers.
Trigger
New ContactPolls for newly created contacts across the account.
Trigger
New Contact in ListPolls for contacts newly added to a specific contact list.
Trigger
New Contact ListPolls for newly created contact lists.
Action
Add Contact to ListAdd (subscribe) a contact to a contact list via managecontact.
Action
Create ContactCreate a new contact.
Action
Create Contact ListCreate a new contact list.
Action
Create Contact PropertyCreate a custom contact property (contactmetadata).
Action
Delete Contact ListDelete a contact list by ID.
Action
Get ContactRetrieve a contact by ID or email address.
Action
Get Contact DataReturns all the contact property values stored on a Mailjet contact. An error occurs if the contact is not found.
Action
Get Contact ListRetrieve a contact list by ID.
Action
Get Contacts in ListList contacts belonging to a specific contact list.
Action
Get MessageRetrieve a message by its ID.
Action
Get StatisticsRetrieve aggregated message/campaign statistics counters.
Action
List Contact ListsList all contact lists.
Action
List ContactsList contacts with optional pagination.
Action
Remove Contact from ListUnsubscribe/remove a contact from a contact list via managecontact.
Action
Send EmailSend a transactional or marketing email via the Send API v3.1.
Action
Update ContactUpdate a contact's name or campaign-exclusion status.
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
HelloSign and Mailjet, answered
Can a signer become a Mailjet contact automatically?
Yes. A new signature request in HelloSign can trigger Create Contact in Mailjet, then Add Contact to List and Manage Contact Data to store details like the agreement date. The agent tests every scenario before it goes live, including contacts that already exist.
What can start an automation from HelloSign?
Any of HelloSign's 1 trigger in the catalog, including New Signature Request. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Mailjet when something happens in HelloSign?
Any of Mailjet's 16 actions, including Remove Contact from List, Create Contact, Create Contact List and Create Contact Property. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Mailjet to HelloSign?
Yes. When something happens in Mailjet, your agent can act in HelloSign too. This page covers both directions: Mailjet's triggers and HelloSign's actions are listed here as well.
Do I have to build a connector for HelloSign or Mailjet?
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 HelloSign and Mailjet 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.