How to make a Slack bot: Python vs low-code
Learn how to make a custom Slack bot with two approaches: using Python and n8n, a low-code workflow automation tool!
Save yourself the work of writing custom integrations for OpenAI and Slack and use n8n instead. Build adaptable and scalable AI, Langchain, Communication, and HITL workflows that work with your technology stack. All within a building experience you will love.
In n8n, click the "Add workflow" button in the Workflows tab to create a new workflow. Add the starting point – a trigger on when your workflow should run: an app event, a schedule, a webhook call, another workflow, an AI chat, or a manual trigger. Sometimes, the HTTP Request node might already serve as your starting point.
You can find OpenAI and Slack in the nodes panel. Drag them onto your workflow canvas, selecting their actions. Click each node, choose a credential, and authenticate to grant n8n access. Configure OpenAI and Slack nodes one by one: input data on the left, parameters in the middle, and output data on the right.
A connection establishes a link between OpenAI and Slack (or vice versa) to route data through the workflow. Data flows from the output of one node to the input of another. You can have single or multiple connections for each node.
Use n8n's core nodes such as If, Split Out, Merge, and others to transform and manipulate data. Write custom JavaScript or Python in the Code node and run it as a step in your workflow. Connect OpenAI and Slack with any of n8n’s 1000+ integrations, and incorporate advanced AI logic into your workflows.
Save and run the workflow to see if everything works as expected. Based on your configuration, data should flow from OpenAI to Slack or vice versa. Easily debug your workflow: you can check past executions to isolate and fix the mistake. Once you've tested everything, make sure to save your workflow and activate it.
This n8n workflow demonstrates how to automate oftern time-consuming form filling tasks in the early stages of the tendering process; the Request for Proposal document or "RFP".
It does this by utilising a company's knowledgebase to generating question-and-answer pairs using Large Language Models.
How it works
A buyer's RFP is submitted to the workflow as a digital document that can be parsed.
Our first AI agent scans and extracts all questions from the document into list form.
The supplier sets up an OpenAI assistant prior loaded with company brand, marketing and technical documents.
The workflow loops through each of the buyer's questions and poses these to the OpenAI assistant.
The assistant's answers are captured until all questions are satisified and are then exported into a new document for review.
A sales team member is then able to use this document to respond quickly to the RFP before their competitors.
Example Webhook Request
curl --location 'https://<n8n_webhook_url>'
--form 'id="RFP001"'
--form 'title="BlueChip Travel and StarBus Web Services"'
--form 'reply_to="[email protected]"'
--form 'data=@"k9pnbALxX/RFP Questionnaire.pdf"'
Requirements
An OpenAI account to use AI services.
Customising the workflow
OpenAI assistants is only one approach to hosting a company knowledgebase for AI to use. Exploring different solutions such as building your own RAG-powered database can sometimes yield better results in terms of control of how the data is managed and cost.
Nodes used in this workflow
Create custom OpenAI and Slack workflows by choosing triggers and actions. Nodes come with global operations and settings, as well as app-specific parameters that can be configured. You can also use the HTTP Request node to query data from any app or service with a REST API.
OpenAI, the creator of ChatGPT, offers a range of powerful models including GPT-3, DALL·E, and Whisper. Leverage these models to build AI-powered workflows.

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Yes, OpenAI can connect with Slack using n8n.io. With n8n, you can create workflows that automate tasks and transfer data between OpenAI and Slack. Configure nodes for OpenAI and Slack in the n8n interface, specifying actions and triggers to set up their connection.
Yes, with n8n, you can programmatically interact with OpenAI’s API via pre-defined supported actions or raw HTTP requests. With the HTTP Request node, you create a REST API call. You need to understand basic API terminology and concepts.
Yes, with n8n, you can programmatically interact with Slack’s API via pre-defined supported actions or raw HTTP requests. With the HTTP Request node, you create a REST API call. You need to understand basic API terminology and concepts.
Yes, it is safe to use n8n to integrate OpenAI and Slack. n8n offers various features to ensure the safe handling of your data. These include encrypted data transfers, secure credential storage, RBAC functionality, and compliance with industry-standard security practices (SOC2 compliant). For hosted plans, data is stored within the EU on servers located in Frankfurt, Germany. You can also host it on your own infrastructure for added control.
Learn more about n8n’s security practices here.
To start integrating OpenAI and Slack in n8n, you have different options depending on how you intend to use it:
Unlike other platforms that charge per operation, step, or task, n8n charges only for full workflow executions. This approach guarantees predictable costs and scalability, no matter the complexity or volume of your workflows.





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