--- title: "Connect OpenAI and PostStack - APIANT.ai" description: "When \"New batch\" fires in OpenAI, your agent runs \"Add a contact\" in PostStack, or \"Contact Updated (instant)\" in PostStack to \"Create message\" in OpenAI." canonical: "https://apiant.ai/connect/openai-to-poststack" --- # Connect OpenAI and PostStack When **New batch** fires in [OpenAI](https://apiant.ai/connections/openai), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **Create message** in OpenAI. Describe the whole flow and it is built, tested on every scenario and kept running. OpenAI **5** triggers OpenAI **69** actions PostStack **7** triggers PostStack **31** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want OpenAI and PostStack to do together? Give your AI client this address. `https://mcp.apiant.ai` One 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.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) Example flows ## What OpenAI and PostStack can do together ### From OpenAI to PostStack - When **New batch** in OpenAI then **Add a contact** in PostStack - When **New file** in OpenAI then **Add contacts to segment** in PostStack ### From PostStack to OpenAI - When **Contact Updated (instant)** in PostStack then **Create message** in OpenAI - When **New Contact (instant)** in PostStack then **Create assistant** in OpenAI 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 OpenAI and PostStack ## Triggers and actions 12 triggers · 100 actions - Trigger **New batch** List your organization's batches. - Trigger **New file** Returns a list of files. - Trigger **New model** Lists the currently available models. - Trigger **New vector store** Returns a list of vector stores. - Trigger **New video** List recently generated videos for the current project. - Action **Cancel batch** Cancels an in-progress batch. - Action **Cancel run** Cancels a run that is in_progress. - Action **Cancel vector store file batch** Cancel a vector store file batch. - Action **Content moderation** Classifies text for hate, harassment, self-harm, sexual, and violence categories using the Moderations API. - Action **Count input tokens** Returns input token counts of the request. - Action **Create assistant** Create an assistant with a model and instructions. - Action **Create chat completion** Sends a list of chat messages to a model via the Chat Completions API and returns the assistant's reply. - Action **Create completion** Creates a completion for the provided prompt and parameters. - Action **Create embedding** Generates a vector embedding for input text using an embeddings model (e.g. text-embedding-3-small). - Action **Create message** Create a message. - Action **Create run** Create a run. - Action **Creates and executes a batch from an uploaded file of requests** Creates and executes a batch from an uploaded file of requests - Action **Create thread** Create a thread. - Action **Create thread and run** Create a thread and run it in one request. - Action **Create vector store** Create a vector store. - Action **Create vector store file** Create a vector store file by attaching a File to a vector store. - Action **Create vector store file batch** Create a vector store file batch. - Action **Create video edit job** Create a new video generation job by editing a source or existing generated video. - Action **Create video extension** Create an extension of a completed video. - Action **Create video generation job** Create a new video generation job from a prompt and optional reference assets. - Action **Create video remix** Create a remix of a completed video using a refreshed prompt. - Action **Delete assistant** Delete an assistant. - Action **Delete eval run** Delete an eval run. - Action **Delete file** Delete a file and remove it from all vector stores. - Action **Delete message** Deletes a message. - Action **Delete thread** Delete a thread. - Action **Delete vector store** Delete a vector store. - Action **Delete vector store file** Delete a vector store file (removes from store, file itself not deleted). - Action **Delete video** Permanently delete a completed or failed video and its stored assets. - Action **Download video content** Download the generated video bytes or a derived preview asset. - Action **Edit image** Creates an edited or extended image given one or more source images and a prompt. - Action **Generate image** Generates an image from a text prompt using gpt-image-1 / DALL-E and returns the image URL or base64 data. - Action **Generate speech** Converts text into spoken audio using a TTS model and the selected voice. Returns audio bytes. - Action **Get assistant** Retrieves an assistant. - Action **Get batch** Retrieves a batch. - Action **Get file** Returns information about a specific file. - Action **Get file content** Returns the contents of the specified file. - Action **Get message** Retrieve a message. - Action **Get model** Retrieves a model instance. - Action **Get run** Retrieves a run. - Action **Get run step** Retrieves a run step. - Action **Get thread** Retrieves a thread. - Action **Get vector store** Retrieves a vector store. - Action **Get vector store file** Retrieves a vector store file. - Action **Get vector store file batch** Retrieves a vector store file batch. - Action **Get vector store file content** Retrieve the parsed contents of a vector store file. - Action **Get video** Fetch the latest metadata for a generated video. - Action **List conversation items** List all items for a conversation with the given ID. - Action **List files** Lists files that have been uploaded to your OpenAI account. - Action **List messages** Returns a list of messages for a given thread. - Action **List models** Lists the models currently available to your account. - Action **List runs** Returns a list of runs belonging to a thread. - Action **List run steps** Returns a list of run steps belonging to a run. - Action **List vector store file batch files** Returns a list of vector store files in a batch. - Action **List vector store files** Returns a list of vector store files. - Action **OpenAI agent message** Runs one AI agent turn on OpenAI and returns the model's reply. The turn is billed to the OpenAI account connected on this step, and the agent can call the account's AI tool automations. - Action **Retrieve response** Retrieves a previously created model response by its Response ID. - Action **Search vector store** Search a vector store for relevant chunks based on a query and filter. - Action **Send model a message** Sends a message to an OpenAI model via the Responses API and emits its response. Returns a Response ID usable as previous_response_id for multi-turn conversations. - Action **Submit tool outputs to run** Submit tool outputs when a run requires action. - Action **Transcribe audio** Transcribes audio into the input language. - Action **Translate audio** Translates audio into English. - Action **Update assistant** Modifies an assistant. - Action **Update message** Modifies a message. - Action **Update run** Modifies a run. - Action **Update thread** Modifies a thread. - Action **Update vector store** Modifies a vector store. - Action **Update vector store file attributes** Update attributes on a vector store file. - Action **Upload file** Upload a file that can be used across various endpoints. - 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 Email** Polls for newly received inbound emails. - Trigger **New Sent Email (instant)** Fires when an email is sent (event: email.sent). - Action **Add a broadcast** Create a new marketing broadcast. - Action **Add a contact** Create a new contact. - Action **Add a segment** Create a new manual contact segment. - Action **Add a template** Create a new email template. - Action **Add contacts to segment** Add contacts to an existing segment. - Action **Add suppression** Add an address to the suppression list. - Action **Cancel broadcast** Cancel an in-flight broadcast. - Action **Cancel email** Cancel a scheduled or queued email before it sends. - Action **Delete a contact** Delete a contact. - Action **Delete a template** Delete an email template. - Action **Get a contact** Fetch one contact by ID. - Action **Get a template** Fetch one email template by ID. - Action **Get broadcast** Retrieve one broadcast by its public id, including the HTML and text bodies that the list endpoint omits. - Action **Get email** Fetch one sent or queued email by ID. - Action **Get email events** Get the delivery event timeline for one email. - Action **Get inbound email** Fetch one received inbound email by ID. - Action **Import contacts** Bulk-import a CSV list of contacts. - Action **List broadcasts** List marketing broadcasts. - Action **List contacts** List contacts in the account. - Action **List emails** List sent, queued, and scheduled emails. - Action **List inbound emails** List emails received via inbound parsing. - Action **List segments** List contact segments. - Action **List suppressed addresses** List addresses on the suppression list. - Action **List templates** List email templates. - Action **Send an email** Send a transactional email through PostStack. - Action **Send broadcast** Start sending a broadcast to its recipients. - Action **Send emails in batch** Send up to 100 emails in a single request. - Action **Update a contact** Update an existing contact's fields. - Action **Update a template** Update an email template, creating a new version. - Action **Update email** Reschedule a queued email's send time. - Action **Validate email address** Check whether an email address is valid and deliverable. ## Each app on its own - [ **OpenAI** OpenAI's platform for text generation (Responses + Chat Completions), image generation (gpt-image-1 /...](https://apiant.ai/connections/openai) - [ **PostStack** EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics](https://apiant.ai/connections/poststack) Reviews ## What our customers say ## More from OpenAI - [ **OpenAI to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/openai-to-hubspot) - [ **OpenAI to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/openai-to-salesforce) - [ **OpenAI to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/openai-to-slack) - [ **OpenAI to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/openai-to-stripe) - [ **OpenAI to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/openai-to-quickbooks-online) - [ **OpenAI to Pipedrive** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/openai-to-pipedrive) ## More into PostStack - [ **HubSpot to PostStack** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-poststack) - [ **Google Sheets to PostStack** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-poststack) - [ **Gmail to PostStack** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-poststack) - [ **Google Calendar to PostStack** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-poststack) - [ **Google Drive to PostStack** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-poststack) - [ **Mailchimp to PostStack** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-poststack) Questions ## OpenAI and PostStack, answered ### ### What can start an automation from OpenAI? Any of OpenAI's 5 triggers in the catalog, including New batch, New file, New model and New vector store. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in PostStack when something happens in OpenAI? 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 OpenAI? Yes. When something happens in PostStack, your agent can act in OpenAI too. This page covers both directions: PostStack's triggers and OpenAI's actions are listed here as well. ### ### Do I have to build a connector for OpenAI 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 OpenAI 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.