Integration
Connect Buttondown to Factur-X by InvoiceXML
When something happens in Buttondown, your agent does the next thing in Factur-X by InvoiceXML. 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 Buttondown and Factur-X by InvoiceXML 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 Buttondown can start in Factur-X by InvoiceXML
When New Draft in Buttondown
then Create Factur-X Invoice in Factur-X by InvoiceXML
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 Buttondown and Factur-X by InvoiceXML
Triggers and actions 4 triggers · 39 actions
- New Draft
Triggers when a new draft is created.
- New Scheduled Email
Triggers when a new email is scheduled.
- Newsletters
Triggers when a new newsletter is created.
- New Tag
Triggers when a new tag is created.
- Add Segment
Create a new subscriber segment.
- Add Survey
Create a new survey.
- Create Draft
Creates a draft.
- Create Email
Creates an email.
- Create Subscriber
Creates a subscriber.
- Delete Automation
Delete an automation by id.
- Delete Email
Delete an email by id.
- Delete Newsletter
Delete a newsletter by id.
- Delete Segment
Delete a subscriber segment by id.
- Delete Subscriber
Remove a subscriber by id or email address.
- Delete Survey
Delete a survey by id.
- Delete Tag
Delete a tag by id.
- Find Tag
Finds a tag given its name.
- Get Automation
Retrieve a single automation by id.
- Get Email
Retrieve a single email by id.
- Get Newsletter
Retrieve a single newsletter by id.
- Get Segment
Retrieve a single subscriber segment by id.
- Get Survey
Retrieve a single survey by id.
- Get Tag
Retrieve a single tag by id.
- List Automations
List all automations configured on the account.
- List Segments
List all subscriber segments.
- List Surveys
List all surveys on the account.
- Publish Email
Publish a drafted email so it is sent and made public.
- Update Automation
Update an automation's configuration.
- Update Email
Update an existing email's content or metadata.
- Update Newsletter
Update a newsletter's settings.
- Update Segment
Update a subscriber segment's definition.
- Update Survey
Update a survey's configuration.
- Update Tag
Update a tag's name or metadata.
- Convert CII XML to Factur-X
Converts a CII XML invoice into a Factur-X compliant PDF/A-3 with the XML embedded. The API generates a visual PDF rendering of the invoice and packages it with the source CII XML.
- Convert Factur-X PDF to CII
Extracts the embedded CII (UN/CEFACT Cross Industry Invoice) XML from a Factur-X PDF and returns it as a standalone XML file.
- Convert Factur-X PDF to UBL
Extracts the embedded CII XML from a Factur-X PDF and converts it to UBL (Universal Business Language) XML.
- Convert UBL XML to Factur-X
Converts a UBL XML invoice into a Factur-X compliant PDF/A-3. The API maps UBL to CII, generates a visual PDF rendering, and embeds the CII XML in the PDF/A-3 container.
- Create Factur-X Invoice
Builds a Factur-X invoice from structured header, party, payment, and line-item data, then returns a ready-to-deliver PDF/A-3b file.
- Embed XML Into PDF (Factur-X)
Takes a PDF and a CII XML and produces a Factur-X compliant PDF/A-3 with the XML attached as factur-x.xml. Use this when you already have both the visual PDF and the structured XML of an invoice and just need the hybrid wrapper.
- Extract Invoice JSON
Pulls invoice fields from a PDF into structured JSON, preferring embedded Factur-X XML when present and falling back to intelligent extraction when not.
- Extract Invoice XML
Retrieves machine-readable invoice XML from a PDF, returning embedded Factur-X XML directly or generating compliant XML when none is embedded.
- Render CII as PDF
Renders a CII (UN/CEFACT Cross Industry Invoice) XML document into a human-readable PDF. The output is a visual PDF, not a Factur-X hybrid file.
- Validate Factur-X Invoice
Checks whether a Factur-X invoice is structurally and semantically valid, including schema status, conformance level, and rule-level issues.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
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Questions
Buttondown and Factur-X by InvoiceXML, answered
What can start an automation from Buttondown?
Any of Buttondown's 4 triggers in the catalog, including New Draft, New Scheduled Email, New Tag and Newsletters. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Factur-X by InvoiceXML when something happens in Buttondown?
Any of Factur-X by InvoiceXML's 10 actions, including Create Factur-X Invoice, Convert CII XML to Factur-X, Convert Factur-X PDF to CII and Convert Factur-X PDF to UBL. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Factur-X by InvoiceXML to Buttondown?
Factur-X by InvoiceXML has no triggers in the catalog today, so automations start in Buttondown. If you need the other direction, ask: your agent reads Factur-X by InvoiceXML's API documentation and adds it.
Do I have to build a connector for Buttondown or Factur-X by InvoiceXML?
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.