Integration
Connect Pennylane and PostStack
When New Billing Subscription V2 fires in Pennylane, your agent runs Add a contact in PostStack, or Contact Updated (instant) in PostStack to Create Company Customer V2 in Pennylane. 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 Pennylane and PostStack 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 Pennylane and PostStack can do together
From Pennylane to PostStack
When New Billing Subscription V2 in Pennylane
then Add a contact in PostStack
When New Customer Invoice V2 in Pennylane
then Add contacts to segment in PostStack
From PostStack to Pennylane
When Contact Updated (instant) in PostStack
then Create Company Customer V2 in Pennylane
When New Contact (instant) in PostStack
then Create Customer Invoice V2 in Pennylane
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 Pennylane and PostStack
Triggers and actions 12 triggers · 65 actions
Trigger
New Billing Subscription V2Triggers when a new billing subscription is created in Pennylane.
Trigger
New Customer Invoice V2Triggers when a new customer invoice or credit note is created in Pennylane.
Trigger
New Customer V2Triggers when a new customer (company or individual) is created in Pennylane.
Trigger
New Product V2Triggers when a new product is created in Pennylane.
Trigger
New Quote V2Triggers when a new quote is created in Pennylane.
Action
Add supplierCreates a supplier in Pennylane and returns the new supplier record.
Action
Create Company Customer V2Creates a company customer in Pennylane with its billing address, contact and invoicing details, and returns the new customer.
Action
Create Customer Invoice V2Creates a draft or finalized customer invoice (or credit note) in Pennylane for an existing customer.
Action
Create Individual Customer V2Creates an individual (person) customer in Pennylane with their name, billing address and invoicing preferences.
Action
Create Product V2Creates a product in Pennylane with its label, price before tax and VAT rate, and returns the created product.
Action
Create Quote V2Creates a quote for a customer in Pennylane, with its line items, dates and optional discount.
Action
Finalize customer invoiceFinalizes a draft customer invoice or credit note in Pennylane, assigning its number and locking it from further edits.
Action
Get Billing Subscription V2Returns one billing subscription, including its schedule, status, customer and invoice settings.
Action
Get supplierReturns a single supplier from Pennylane by its id, including contact, address, payment terms and ledger account.
Action
Get supplier invoiceReturns a single supplier invoice from Pennylane by its ID, including amounts, dates, supplier, and payment status.
Action
Get transactionReturns a single bank transaction by its id, including amount, currency, date, bank account, categories and linked customer or supplier.
Action
List bank accountsReturns the company's bank accounts with their currency, balance, journal and ledger account.
Action
List billing subscriptionsReturns the billing subscriptions in the Pennylane company, optionally filtered by status, customer or start date.
Action
List categoriesReturns the analytical categories defined in the Pennylane company, optionally filtered by group, label or code.
Action
List customer invoicesReturns customer invoices and credit notes, optionally filtered and sorted.
Action
List customersReturns a list of company and individual customers in Pennylane, optionally filtered and sorted.
Action
List ledger accountsReturns the company's ledger accounts (chart of accounts), up to 1000 per call, optionally filtered by number, id or enabled status.
Action
List ledger entriesReturns the ledger entries of your Pennylane company, optionally filtered by id, date or journal and sorted by id or date.
Action
List productsReturns the products in the Pennylane company, optionally filtered by label, reference or id.
Action
List quotesReturns the quotes in your Pennylane company, optionally filtered by customer or status.
Action
List supplier invoicesReturns the supplier invoices in your Pennylane company, optionally filtered and sorted.
Action
List suppliersReturns the suppliers in your Pennylane company, optionally filtered and sorted.
Action
List transactionsReturns the bank transactions in your Pennylane company, optionally filtered by bank account, journal, date or id.
Action
Retrieve Customer V2Returns one customer (company or individual) by its Pennylane id, including contact details, addresses and billing settings.
Action
Retrieve Invoice V2Returns one customer invoice or credit note, including its amounts, status, customer and links to its lines and payments.
Action
Retrieve Product V2Returns one Pennylane product by its id, including price, VAT rate, unit, ledger account and custom field values.
Action
Retrieve Quote V2Returns a single quote by its ID, including amounts, status, customer and dates.
Action
Update Billing Subscription V2Updates a billing subscription in Pennylane: stop or resume it, change its invoicing mode, payment terms, schedule, customer or invoice content.
Action
Update Company Customer V2Updates an existing company customer in Pennylane and returns the updated customer.
Action
Update customer invoiceUpdates a customer invoice in Pennylane. Draft invoices accept all fields; finalized invoices accept only label, external reference, transaction reference, invoice line imputation/performance dates and installments.
Action
Update Individual Customer V2Updates an individual (person) customer in Pennylane and returns the updated customer.
Action
Update Product V2Updates an existing product in Pennylane, such as its label, price, VAT rate or custom fields.
Action
Update Quote V2Updates an existing quote in Pennylane — its dates, customer, texts, discount, language and invoice lines — and returns the updated quote.
Action
Update supplierUpdates an existing supplier in Pennylane and returns the updated supplier.
Trigger
Contact Deleted (instant)Fires when a contact is deleted (event: contact.deleted).
Trigger
Contact Updated (instant)Fires when a contact is updated (event: contact.updated).
Trigger
Email Bounced (instant)Fires when an email bounces (event: email.bounced).
Trigger
Email Delivered (instant)Fires when an email is delivered (event: email.delivered).
Trigger
New Contact (instant)Fires when a contact is created (event: contact.created).
Trigger
New Inbound EmailPolls for newly received inbound emails.
Trigger
New Sent Email (instant)Fires when an email is sent (event: email.sent).
Action
Add a broadcastCreate a new marketing broadcast.
Action
Add a contactCreate a new contact.
Action
Add a segmentCreate a new manual contact segment.
Action
Add a templateCreate a new email template.
Action
Add contacts to segmentAdd contacts to an existing segment.
Action
Add suppressionAdd an address to the suppression list.
Action
Cancel broadcastCancel an in-flight broadcast.
Action
Cancel emailCancel a scheduled or queued email before it sends.
Action
Delete a contactDelete a contact.
Action
Delete a templateDelete an email template.
Action
Get a contactFetch one contact by ID.
Action
Get a templateFetch one email template by ID.
Action
Get broadcastRetrieve one broadcast by its public id, including the HTML and text bodies that the list endpoint omits.
Action
Get emailFetch one sent or queued email by ID.
Action
Get email eventsGet the delivery event timeline for one email.
Action
Get inbound emailFetch one received inbound email by ID.
Action
Import contactsBulk-import a CSV list of contacts.
Action
List broadcastsList marketing broadcasts.
Action
List contactsList contacts in the account.
Action
List emailsList sent, queued, and scheduled emails.
Action
List inbound emailsList emails received via inbound parsing.
Action
List segmentsList contact segments.
Action
List suppressed addressesList addresses on the suppression list.
Action
List templatesList email templates.
Action
Send an emailSend a transactional email through PostStack.
Action
Send broadcastStart sending a broadcast to its recipients.
Action
Send emails in batchSend up to 100 emails in a single request.
Action
Update a contactUpdate an existing contact's fields.
Action
Update a templateUpdate an email template, creating a new version.
Action
Update emailReschedule a queued email's send time.
Action
Validate email addressCheck whether an email address is valid and deliverable.
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
Pennylane and PostStack, answered
What can start an automation from Pennylane?
Any of Pennylane's 5 triggers in the catalog, including New Billing Subscription V2, New Customer Invoice V2, New Customer V2 and New Product V2. Describe the moment in plain language and your agent picks the right one.
What can your agent do in PostStack when something happens in Pennylane?
Any of PostStack's 31 actions, including Send an email, Send broadcast, Send emails in batch and Update a contact. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from PostStack to Pennylane?
Yes. When something happens in PostStack, your agent can act in Pennylane too. This page covers both directions: PostStack's triggers and Pennylane's actions are listed here as well.
Do I have to build a connector for Pennylane or PostStack?
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 Pennylane and PostStack 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.