Integration
Connect MailWizz to fastbill
When New Subscriber fires in MailWizz, your agent runs Add Payment for Invoice in fastbill. 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 MailWizz and fastbill 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)Grok
Open grok.com/connectors, choose New Connector, then Custom, and paste the address. Grok signs you in in your browser.
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 MailWizz can start in fastbill
When New Subscriber in MailWizz
then Add Payment for Invoice in fastbill
When New Unubscriber in MailWizz
then Create Customer in fastbill
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 MailWizz and fastbill
Triggers and actions 2 triggers · 31 actions
Trigger
New SubscriberTriggers when a new confirmed subscriber is added to a MailWizz list.
Trigger
New UnubscriberTriggers when a subscriber unsubscribes from a MailWizz list.
Action
Add campaignCreates an email campaign for a list, with its sender details, schedule and content.
Action
Add listCreates a new email list in MailWizz with its name, description, sender defaults and optional notification and company details.
Action
Create SubscriberAdds a new subscriber to a MailWizz list.
Action
Delete listDeletes a list and its subscribers from your MailWizz account.
Action
Delete subscriberPermanently deletes a subscriber from a MailWizz list. No email is sent to the subscriber.
Action
Find Subscriber by EmailFinds a subscriber in a MailWizz list by email address.
Action
Get campaignReturns one MailWizz campaign, including its name, type, sender details, subject, status, schedule and target list.
Action
Get listReturns one email list's details: general info, sender defaults, notification settings and company address.
Action
List campaignsReturns the campaigns in your MailWizz account, optionally only those for one list.
Action
Send transactional emailSends a one-off transactional email through MailWizz to a single recipient, now or at a scheduled time.
Action
Unsubscribe SubscriberUnsubscribes a subscriber from a MailWizz list silently (no email is sent).
Action
Update listUpdates an existing MailWizz list's name, description, sender defaults, notifications and company details.
Action
Update subscriberUpdates an existing subscriber's email and field values on a MailWizz list.
Action
Add Payment for InvoiceAdds full payment for invoice
Action
Add Payment for RevenueAdds full payment for revenue
Action
Create CustomerCreates a new customer in FastBill
Action
Create InvoiceCreates a new invoice
Action
Create OfferCreates a new offer in FastBill
Action
Create RevenueCreates a revenue entry
Action
Delete CustomerDelete a FastBill customer by ID.
Action
Delete InvoiceDelete a FastBill invoice by ID.
Action
Delete OfferDelete a FastBill offer/estimate by ID.
Action
Finalize InvoiceConverts an invoice draft to a final invoice
Action
Get CustomerFetch a single FastBill customer by ID.
Action
Get InvoiceFetch a single FastBill invoice by ID.
Action
Get OfferFetch a single FastBill offer/estimate by ID.
Action
Search CustomerSearch for a Customer
Action
Search InvoiceFind an invoice
Action
Send Invoice by EmailSend an invoice by email
Action
Update CustomerUpdate fields on an existing FastBill customer.
Action
Update InvoiceUpdate fields on an existing (draft) FastBill invoice.
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
MailWizz and fastbill, answered
What can start an automation from MailWizz?
Any of MailWizz's 2 triggers in the catalog, including New Subscriber and New Unubscriber. Describe the moment in plain language and your agent picks the right one.
What can your agent do in fastbill when something happens in MailWizz?
Any of fastbill's 18 actions, including Create Customer, Create Invoice, Create Offer and Create Revenue. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from fastbill to MailWizz?
fastbill has no triggers in the catalog today, so automations start in MailWizz. If you need the other direction, ask: your agent reads fastbill's API documentation and adds it.
Do I have to build a connector for MailWizz or fastbill?
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 MailWizz and fastbill 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.