Secure OpenAI connection
A small server on your account holds the API key, checks each request, and applies usage caps.
The Problem
Your Team Copies Text Into ChatGPT and Back Out All Day
It shows up once ChatGPT becomes part of daily work. People paste customer questions, emails, and notes into a browser tab, then paste the answers back into WhatsApp, Slack, or your CRM.
Copy-paste
Staff paste every question into a browser tab by hand.
Copy-paste
Questions flow from WhatsApp, Slack, or your site straight to the assistant.
Mixed answers
Each person writes prompts, so policies come out differently.
Mixed answers
One set of approved instructions and facts gives every customer the same answer.
Shared logins
A personal account login circulates around the office.
Shared logins
Calls run on your company's OpenAI account, with usage caps for each channel.
Exposed key
Someone wants the API key inside the website code.
Exposed key
A small server holds the key and checks every request before it reaches OpenAI.
Your front desk copies every WhatsApp question into ChatGPT, then pastes the answer back. Sales does the same with emails in Outlook, and support with Slack threads. Each person writes their own prompts, so customers hear different versions of your refund policy. Someone shared a personal account login so more people could use it. Nobody knows what it costs or what customer data went in, and a developer suggested putting the API key in the website code to save time.
We start by mapping where your team already uses ChatGPT by hand, and which of those moments should be automated. Then we connect the OpenAI API to those channels through a small server you own, so the key stays off every browser and phone. The assistant answers from your approved facts, books through your calendar, and logs every exchange with its cost. Your team stops copying and pasting, and customers get one consistent answer.
Inside the channels you use
Website chat, WhatsApp, Slack, and email get answers without anyone copying text between tabs.
One server holds the key
Every request goes through a small server you own, so no API key reaches a browser.
Answers from approved facts
The assistant uses your policies, prices, and hours, and hands off when it doesn't know.
Our ChatGPT Integration Services Process
From Copy and Paste to Connected Assistant in Five Clear Steps
You approve the channels, the instructions, and the facts the assistant may use before launch. Every channel is tested with your own real questions before customers or staff see it.
We look at where your team uses ChatGPT by hand today and which channels matter most: website, WhatsApp, Slack, email, or calendar. You get an honest view of what to connect first and a fixed price.
What's Included
What You Get With ChatGPT API Integration
Everything needed to put ChatGPT where work happens: the server that holds your key, the channel connections, the instructions and facts, and logs that show cost and quality.
Compare Options
DeveloperLook vs Chatbot plugin vs Freelancer
A chatbot plugin suits a simple website FAQ, and a freelancer suits one small connection. Here is how a custom ChatGPT integration for businesses compares once several channels and real data are involved.
| Feature | DeveloperLookBest fit | Chatbot plugin | Freelancer |
|---|---|---|---|
| Channels | Website, WhatsApp, Slack, email, calendar | Usually website chat only | Often one channel |
| Answers from your facts | Approved instructions and facts | Uploaded FAQ pages | Depends on the build |
| Key security | Key held on your server | Held by the plugin vendor | Varies by developer |
| Usage control | Caps and logs per channel | Plan limits set by vendor | Often left for later |
| Calendar and CRM | Confirmed before anything is written | Limited, or an extra cost | Possible with more time |
| Starting cost | From $700, fixed scope | Lowest, a monthly fee | Lower hourly rate |
| Setup speed | First channel in 1 to 2 weeks | Live within a day | Days for one connection |
| Ownership | Code and accounts are yours | Tied to the plugin | Yours if the contract says so |
DeveloperLook
Chatbot plugin
- Channels
- DeveloperLook: Website, WhatsApp, Slack, email, calendarChatbot plugin: Usually website chat only
- Answers from your facts
- DeveloperLook: Approved instructions and factsChatbot plugin: Uploaded FAQ pages
- Key security
- DeveloperLook: Key held on your serverChatbot plugin: Held by the plugin vendor
- Usage control
- DeveloperLook: Caps and logs per channelChatbot plugin: Plan limits set by vendor
- Calendar and CRM
- DeveloperLook: Confirmed before anything is writtenChatbot plugin: Limited, or an extra cost
- Starting cost
- DeveloperLook: From $700, fixed scopeChatbot plugin: Lowest, a monthly fee
- Setup speed
- DeveloperLook: First channel in 1 to 2 weeksChatbot plugin: Live within a day
- Ownership
- DeveloperLook: Code and accounts are yoursChatbot plugin: Tied to the plugin
Projects We've Built
Booking Apps and Business Sites We Have Built
Booking apps and business websites we designed and built, where customers ask questions before they book. They show the channels an assistant plugs into, not ChatGPT builds.
Petopia Pet Care App Design & Development
- Pets
- Booking System
- Mobile App
MiCar Automotive App Design
- Automotive
- Booking System
- Dashboard
Doorin Vacation Rental Mobile App Design
- Vacation Rental
- Booking System
- Dashboard
StriveGym Membership Website Design & Development
- Fitness & Gym
- Membership Platform
- Website
What Our Clients Say
What Clients Say After Launch
Feedback from teams we have built apps, platforms, and websites for.
We had a pretty specific idea of what we wanted our website to become, but I wasn’t sure how easily we could explain all of it to a development team. There were quite a few moving parts, and we were working toward a deadline, so I expected a few things to get lost along the way. That never really happened. They understood what we were trying to achieve, kept us updated throughout the process, and got everything ready within the agreed timeline. The final site feels much easier to navigate, works beautifully on mobile, and is noticeably smoother for our customers. It was a huge relief seeing the original idea actually turn into the website we had in mind.
The mobile experience is probably my favourite part of the new site. We had spent a lot of time making sure the desktop version looked right, and the team kept pushing us to think about how everything would actually feel on a phone too. They were right. The navigation is clean, the interactions feel natural, and everything we’ve tested so far works exactly as it should. They also went through the links, forms, integrations, and other details more than once before launch, which I really appreciated. And even after going live, we could still reach out when something came up. The whole process felt friendly, organised, and surprisingly straightforward.
What I appreciate most is that the website is actually easy for us to manage now. We can update content ourselves instead of sending a developer a message every time we need to change something small. They also paid attention to the technical SEO side, which mattered to us because we didn’t want a new website to create problems for the traffic we already had. I’ve probably asked more questions than I should have since launch, but every question has been handled patiently and without any fuss. The team is easy to work with, they explain things clearly, and when we need something changed, they focus on getting it done rather than making the process complicated.
1,250+
Projects shipped
10+
Years of experience
Top 3%
Upwork Top Rated Plus
5 stars
Average review score
1,250+
Projects shipped
10+
Years of experience
Top 3%
Upwork Top Rated Plus
5 stars
Average review score
Want results like these?
Tell us what you are building. You get a reply within 24 hours on business days, then a written estimate.
Work Culture
Why Teams Trust Us With Their ChatGPT Setup
Teams usually come to us after a quick ChatGPT experiment worked. They stay because we make it safe to scale: keys protected, costs visible, answers consistent, and platform rules followed.
Keys kept off every device
We put your OpenAI key on a small server you own, not in website code or a mobile app. A copied page or app bundle can't run up your bill.
Honest about built-in features
If ChatGPT's own apps already connect to your calendar or files for staff use, we'll tell you before we quote. Custom work pays off once customers or workflows are involved.
Platform rules followed
Meta's WhatsApp Business Platform terms bar general-purpose AI assistants, so we build assistants that answer about your own business. Each channel's rules shape the design from the start.
Costs you can see
Every request is logged with its channel and token cost. You see what the front desk, sales, and support assistants each cost before the OpenAI invoice arrives.
Customer data kept lean
We keep personal data out of prompts unless the task needs it. Before launch, we walk you through OpenAI's API data terms and what they mean for your customers.
Your account, your code
The OpenAI account, the server, and the code are in your name from day one. You can change providers or bring the work in-house without asking us.
Overview
What do ChatGPT integration services connect inside a business?
DeveloperLook provides ChatGPT integration services that connect the OpenAI API to your website, WhatsApp, Slack, email, n8n, or calendar. We set up a server that holds your key, write instructions from your approved facts, add usage caps and logs, and test real questions. Projects start at $700, and a first channel goes live in 1 to 2 weeks.
DEVELOPERLOOK
Project facts · ChatGPT Integration Services
- Service
- ChatGPT Integration Services (OpenAI API, website and WhatsApp chat, Slack, calendar actions)
- Typical timeline
- 1 to 2 weeks for one channel, 3 to 6 weeks for several channels
- Platforms
- Websites, WhatsApp Business, Slack, Microsoft Teams, Google Calendar, Outlook, and n8n
- Built with
- OpenAI API, Node.js, Python, n8n, WhatsApp Cloud API, Microsoft Graph
- Experience
- 10+ years of development experience and 1,250+ shipped projects
- Post-launch support
- 30 days of fixes and questions after launch
- Communication
- Calls in US, UK, and AU business hours
- Starting price
- From $700 USD, fixed scope after a discovery call
Reviewed 28 Oct 2026 by Saimul Islam
Good fit
Local businesses answering repeat questions
You run a clinic, salon, or shop and want an AI chatbot and ChatGPT integration for local businesses that answers hours, prices, and bookings on WhatsApp.
Teams that live in Slack
Your support and ops teams ask the same internal questions all day, and a ChatGPT Slack integration could answer them from your own handbook.
Ops teams already on n8n
Your workflows run on n8n, and you want an n8n ChatGPT integration that summarizes, sorts, or drafts inside flows you already maintain.
Product teams adding OpenAI features
Your app needs OpenAI integration services for one feature, such as drafting replies or summarizing notes, without hiring a whole AI team first.
Agencies fielding ChatGPT requests
Your clients keep asking for ChatGPT on their sites and WhatsApp, and you need a partner who builds it under your brand.
Not a fit
Moving off custom GPTs
You already run custom GPTs inside ChatGPT and need them moved before OpenAI retires them. Custom GPT Development covers that migration work.
Full support chatbot build
You need a full website support bot with a knowledge base, lead capture, and live handoff. AI Chatbot Development Services covers that larger build.
Claude or Gemini only
Your company has standardized on Claude or Gemini rather than OpenAI. We build those too, but under a separate scope with each provider's own API and terms.
Budget under $700
Your budget is under $700, or staff only need ChatGPT to read their own calendar or files. ChatGPT's built-in apps may already cover that on a paid seat.
Not sure we're the right fit?
Book a free call or message us. We'll tell you honestly whether we're the right team.
Pricing
Transparent Starting Prices for ChatGPT Integration Services
These are starting points in USD. Your final price depends on how many channels you connect and any calendar or CRM actions, and you get a fixed proposal after a free discovery call.
For Agencies
White-Label OpenAI Integration Services for Agencies and Studios
You own the client relationship. We build the OpenAI connections behind it: the server, channel links, instructions, tests, and logs. Assistants launch under your client's brand, and your team stays the point of contact.
How the partnership works
White label: your client only ever sees your brand
Your clientSees only your brand
You, the agencyOwn the relationship
DeveloperLookBehind your brand
Share the brief
Send the client's channels, common questions, and booking or CRM tools.
- Client needs
- You share the details
- Details received
We map and price
You get the channel plan, a draft of the instructions, and a fixed price.
- Scope and plan
- Proposal to resell
- Your quoteYOUR LOGO
Build and hand off
We launch under your client's brand and hand over code and accounts.
- Done by our team
- Your brand on it
- Handed to your clientDone
- Your client
- You, the agency
- DeveloperLook
Share the brief
Send the client's channels, common questions, and booking or CRM tools.
- Client needs
- You share the details
- Details received
We map and price
You get the channel plan, a draft of the instructions, and a fixed price.
- Scope and plan
- Proposal to resell
- Your quoteYOUR LOGO
Build and hand off
We launch under your client's brand and hand over code and accounts.
- Done by our team
- Your brand on it
- Handed to your clientDone
Partner with DeveloperLookDelivered under your brand
The Right Technology for Your Project
Technology Stack
We connect OpenAI models through each channel's official API and keep the logic on a small server you own and control.
OpenAI API- ChatGPT
- Moderation API
- File search
Slack- Microsoft Teams
- Website chat
- Google Calendar
- Outlook
HubSpot
Salesforce
n8n
Node.js
Python
PostgreSQL
Cloudflare
01 / 04
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DeveloperLook handles custom GPT development for teams moving off custom GPTs. We migrate each GPT to a ChatGPT plugin, rebuild custom actions as MCP server tools, or rebuild it as an API assistant on your website, tested on your real prompts.This page
ChatGPT Integration Services
Pairs with the 6 services around it
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Claude and Gemini API Integration
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Frequently Asked Questions
Straight answers on what ChatGPT integration is, cost, timelines, websites, calendars, Outlook, and data use.
Saimul IslamFounder & CEO, DeveloperLookStill have questions?
Send a message or book a call with the team.
ChatGPT integration means connecting OpenAI's models to the software you already use, so answers and drafts appear inside it instead of a separate browser tab. Most integrations use the OpenAI API, not the ChatGPT app itself. A small server sends each request with your instructions and facts, applies limits, and returns the reply to your website, chat, or workflow.
ChatGPT is integrated with other systems through APIs on both sides. A ChatGPT WhatsApp integration, for example, receives each message through WhatsApp's Cloud API, sends it to the OpenAI API with your instructions, and posts the reply back. Slack, Outlook, Google Calendar, and CRMs work the same way, each through its own official API and permissions.
Integrating ChatGPT with us starts at $700 for one channel, such as a website chat or a WhatsApp number. A Business Workflow Integration with up to 3 channels and calendar booking starts at $2,100, and a company-wide setup starts at $4,600. OpenAI bills usage separately to your own account by the tokens you use.
A single channel usually goes live in 1 to 2 weeks, including tests with 25 real questions. Several channels with calendar or CRM actions take 3 to 6 weeks. WhatsApp can add a few days, because Meta reviews the business account and any message templates before you can message customers first.
Yes, you can add ChatGPT to your website as a chat window or as a helper inside a form or search box. We add a small script to your site that talks to your own server rather than straight to OpenAI, so your key stays private. It works on WordPress, Shopify, Webflow, or a custom-built site.
Yes, and a chat window is only one of the ways. It can also power site search that answers in full sentences, a form that drafts quote requests, or product descriptions written in your admin. Each one runs through the OpenAI API behind your own server, with limits on topics, length, and cost.
Yes. ChatGPT offers a Google Calendar app that lets a signed-in user look up events inside ChatGPT on supported plans. For customer bookings from a website or WhatsApp, we connect the OpenAI API to the Google Calendar API. The assistant then checks free slots, offers times, and books only after the customer confirms.
Yes, in two ways. ChatGPT's own Microsoft apps can look up Outlook email and calendar items for a signed-in user on supported plans. For business workflows, we connect the OpenAI API to Microsoft Graph. An assistant can then draft replies, sort incoming mail, or propose meeting times, and a person approves before anything is sent or booked.
No, not by default for API traffic. OpenAI's API data docs say API data isn't used to train its models unless you opt in. Abuse monitoring logs are kept for up to 30 days. We also keep personal data out of prompts wherever the task doesn't need it.
You do: the OpenAI account, the server, the code, and the instructions are all in your name. We hand over admin access and a short guide, and you get 30 days of fixes and questions after launch. After that, you can change the instructions yourself or ask us for small updates.
Saimul IslamFounder & CEO, DeveloperLookStill have questions?
Send a message or book a call with the team.
Free 30-min callGoogle Meet
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