Integration
Connect Circle and Quaderno
When New Access Group fires in Circle, your agent runs Add invoice payment in Quaderno, or New Contact in Quaderno to Create Contact in Circle. 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 Circle and Quaderno 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 Circle and Quaderno can do together
From Circle to Quaderno
When New Access Group in Circle
then Add invoice payment in Quaderno
When New Comment Posted in Circle
then Create Contact in Quaderno
From Quaderno to Circle
When New Contact in Quaderno
then Create Contact in Circle
When New Invoice in Quaderno
then Send Direct Message in Circle
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 Circle and Quaderno
Triggers and actions 19 triggers · 45 actions
Trigger
Content ApprovedTriggers when a moderator approves reported (flagged) content in your Circle community.
Trigger
Content FlaggedTriggers when a piece of community content (a post, comment or message) is reported for moderation.
Trigger
Content RejectedTriggers when a moderator rejects reported content (a post or comment) in your Circle community.
Trigger
New Access GroupTriggers when a new access group is created in your Circle community.
Trigger
New Comment PostedTriggers when a new comment is posted in your Circle community, optionally limited to one space or post.
Trigger
New Event CreatedTriggers when a new event is published in your Circle community, optionally limited to one event space.
Trigger
New Event RSVPTriggers when a member RSVPs yes to the selected Circle event.
Trigger
New Member Active SubscriptionTriggers when a community member's paid subscription becomes active in Circle.
Trigger
New Member AddedTriggers when a new member joins the Circle community. Optionally includes invited members who have not finished setting up their profile, or only members with chosen tags.
Trigger
New Member Canceled SubscriptionTriggers when a community member's paid subscription is canceled in Circle, returning the canceled subscription with its member and paywall details.
Trigger
New Member Paid ChargeTriggers when a community member is charged successfully (a new paid charge appears in Circle).
Trigger
New Member Past Due SubscriptionTriggers when a community member's paid subscription becomes past due.
Trigger
New Member Refunded ChargeTriggers when a member's charge is refunded, fully or partially, in your Circle community.
Trigger
New PostTriggers when a new basic post is published in your Circle community, optionally limited to one space or space group.
Trigger
New Space CreatedTriggers when a new space is created in your Circle community.
Trigger
New Tagged MemberTriggers when a member tag is applied to a community member or contact in your Circle community.
Action
Add Member to Space GroupAdds an existing community member, by email, to a space group and to every space in that group. Does nothing if they are already in the group.
Action
Create CommentCreates a comment on a Circle post, or a reply to an existing comment, optionally authored as another community member.
Action
Create ContactCreates a non-member contact (lead) in your Circle community from an email address. The contact appears in your audience for email marketing but has no login or community access.
Action
Create Course SectionCreates a new section at the end of a course space. The section starts with no lessons.
Action
Find MemberFinds a community member by their exact email address, including invited members who have not finished setting up their profile.
Action
Has Member TagChecks whether the community member with a given email address has a given member tag, and returns true or false along with the member's id and tags.
Action
Invite MemberInvites a person to your Circle community by email, creating their Circle account if needed, and optionally adds them to spaces, space groups and member tags. Returns the new community member.
Action
Is Member of SpaceChecks whether a community member, identified by email, belongs to a chosen space and returns their space membership details.
Action
Is Member of Space GroupChecks whether a community member, identified by email, belongs to a space group, and returns their membership details when they do.
Action
Mark Course Lesson as CompletedMarks a course lesson as completed for a member of the course space, identified by their email address.
Action
Remove MemberRemoves a member from your Circle community by deactivating their membership and canceling their running paid subscriptions. Their posts and comments are kept, and inviting the same email again restores the membership.
Action
Remove Member From Access GroupRemoves a community member, identified by member ID or email, from an access group.
Action
Remove Member From EventRemoves a member's RSVP from a Circle event, identified by the member's email. The attendee record is kept with its RSVP set to no.
Action
Remove Member From SpaceRemoves a community member, identified by email, from a space. The person stays a member of the community.
Action
Remove Member From Space GroupRemoves a member from a space group and from every space in that group. They stay a member of the community.
Action
RSVP Member to EventAdds a community member, identified by email, to an event. The member is RSVPed directly when the event auto-RSVPs invited attendees; otherwise they are invited.
Action
Send Direct MessageSends a direct chat message to a Circle community member, identified by email, optionally as a reply in a thread.
Action
Start a Group ChatSends a message to a group of community members in a group chat, starting the group chat if it does not exist yet. The message is sent as the community member the connection authenticates as.
Action
Tag MemberApplies a member tag to the community member with the given email. If the member already has the tag, it is kept.
Action
Untag MemberRemoves a member tag from the community member with the given email. The tag itself stays in the community; only its assignment to that member is removed.
Action
Update EventUpdates an existing event in a Circle event space. Only the fields you fill in are changed; everything else on the event stays as it is.
Trigger
New ContactTriggers when a new contact is created in Quaderno.
Trigger
New InvoiceTriggers when a new invoice is created in Quaderno.
Trigger
New SaleTriggers when a new sale is recorded in Quaderno, i.e. a new invoice or receipt is created.
Action
Add invoice paymentRecords a payment against a Quaderno invoice. When total payments reach the invoice amount, the invoice is marked as paid.
Action
Add productCreates a new product in Quaderno that can be used as a line item on invoices, credit notes and expenses.
Action
Add receiptCreates a paid receipt in Quaderno for a completed sale, with its customer, line items and payment method.
Action
Calculate tax rateCalculates the tax rate and tax amount that applies to a sale for a given customer location and product type.
Action
Create ContactCreates a new contact (customer or vendor) in Quaderno and returns the created contact.
Action
Create EstimateCreates an estimate (proforma) in Quaderno for a customer, with line items, dates and notes.
Action
Create ExpenseCreates an expense in Quaderno for a vendor, with its line items, and returns the new expense.
Action
Create InvoiceCreates an invoice for a customer with line items; optionally records full payment so the invoice is marked paid.
Action
Create Paid InvoiceCreates an invoice for a customer and records a full payment against it, so the invoice is marked paid.
Action
Create SaleRecords a sale in Quaderno, which calculates taxes and issues the matching invoice or receipt for the customer.
Action
Delete contactPermanently deletes a contact (customer or vendor) from your Quaderno account.
Action
Find ContactFinds contacts whose name, email or tax ID matches the search text, or whose payment-processor ID matches.
Action
Find SaleFinds sales (invoices) by invoice number, customer name or PO number, payment processor transaction id, customer, state or issue date range, and returns the matches.
Action
Get contactReturns a single Quaderno contact (customer or vendor) by its ID.
Action
Get EstimateReturns a single estimate (proforma) by its id, including its number, customer, line items, taxes and totals.
Action
Get ExpenseReturns the details of an existing expense in your Quaderno account.
Action
Get invoiceReturns a single invoice by its id, including number, contact, line items, taxes, totals and payments.
Action
Get productReturns a single product (item) from your Quaderno account by its id, including its name, code, price and tax settings.
Action
Get ReceiptReturns a receipt by its id, including number, totals, taxes, contact and payment details.
Action
Update contactUpdates an existing Quaderno contact. Fields left blank keep their current values.
Action
Update invoiceUpdates the editable fields of an existing invoice: PO number, tags, payment details, notes, custom metadata and billing address.
Action
Update productUpdates an existing product in Quaderno. Only the fields you fill in are changed.
Action
Validate tax IDChecks whether a customer's tax ID (EU/UK VAT, ABN, NZBN, QST, Swiss UID) is valid and belongs to a real business.
Action
Void invoiceVoids an existing invoice in Quaderno and returns the voided 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
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Questions
Circle and Quaderno, answered
What can start an automation from Circle?
Any of Circle's 16 triggers in the catalog, including New Access Group, New Comment Posted, New Event Created and New Event RSVP. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Quaderno when something happens in Circle?
Any of Quaderno's 24 actions, including Create Contact, Create Estimate, Create Expense and Create Invoice. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Quaderno to Circle?
Yes. When something happens in Quaderno, your agent can act in Circle too. This page covers both directions: Quaderno's triggers and Circle's actions are listed here as well.
Do I have to build a connector for Circle or Quaderno?
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 Circle and Quaderno 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.