You will get develop AI voice assistant using Retell AI Vapi Bland voice automation n8n
Project details
Need an AI voice assistant that answers calls, qualifies leads, books appointments, and automates customer conversations? I develop custom AI voice agents using Retell AI, Vapi, Bland AI, OpenAI, n8n, Twilio, ElevenLabs, Deepgram, and Whisper to help businesses automate inbound and outbound phone calls with natural, human-like conversations.
Services I offer:
• AI Voice Assistant Development
• Retell AI, Vapi & Bland AI Integration
• n8n Voice Automation Workflows
• Twilio SIP & Phone Number Setup
• OpenAI GPT Integration
• AI Receptionist & Appointment Booking
• AI Customer Support & Sales Agents
• Lead Qualification Automation
• CRM Integration (HubSpot, Salesforce, Zoho)
• Google Calendar, Airtable & API Integration
• Webhooks, Function Calling & Knowledge Base Setup
• Prompt Engineering, Voice Workflow Optimization & Troubleshooting
Ideal for healthcare, real estate, eCommerce, SaaS, law firms, agencies, restaurants, and local businesses. Every solution is tailored to your workflow, ensuring scalable automation, low-latency voice interactions, seamless integrations, and a better customer experience.
Services I offer:
• AI Voice Assistant Development
• Retell AI, Vapi & Bland AI Integration
• n8n Voice Automation Workflows
• Twilio SIP & Phone Number Setup
• OpenAI GPT Integration
• AI Receptionist & Appointment Booking
• AI Customer Support & Sales Agents
• Lead Qualification Automation
• CRM Integration (HubSpot, Salesforce, Zoho)
• Google Calendar, Airtable & API Integration
• Webhooks, Function Calling & Knowledge Base Setup
• Prompt Engineering, Voice Workflow Optimization & Troubleshooting
Ideal for healthcare, real estate, eCommerce, SaaS, law firms, agencies, restaurants, and local businesses. Every solution is tailored to your workflow, ensuring scalable automation, low-latency voice interactions, seamless integrations, and a better customer experience.
AI Development Type
Deep Learning, Knowledge Representation, Model Tuning, Recommendation System, Software MaintenanceAI Tools
BigDL, Google AutoML, Keras, MLflow, NVIDIA AI Platform, OpenCV, PyTorch, Sonnet, TensorFlowAI Development Language
JavaWhat's included
| Service Tiers |
Starter
$120
|
Standard
$250
|
Advanced
$450
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
AI Model Integration | - | ||
Detailed Code Comments | - | - | - |
Knowledge Graph | - | ||
Model Documentation | - | - | - |
Ontology | - | - | - |
Source Code | - | - | |
Taxonomy | - | - | - |
Frequently asked questions
2 reviews
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DS
Daniel S.
Jul 27, 2026
AI Agent Developer Needed, OpenClaw Claude Code and MCP server
Working with this developer was indeed an excellent experience. He delivered a fully functional OpenClaw and Claude Code AI agent setup with great attention to detail.
Highly skilled, reliable, and easy to work with. I highly recommend Benjamin to anyone looking for AI agent development or automation solutions.
Thank you Benjamin, i'll hire you again
Highly skilled, reliable, and easy to work with. I highly recommend Benjamin to anyone looking for AI agent development or automation solutions.
Thank you Benjamin, i'll hire you again
OF
Oluwaseun F.
Jul 17, 2026
Amadeus API Bug Fix
Excellent API troubleshooting work. They quickly identified the root cause of the authentication issue, explained the problem clearly, and resolved the persistent 401 Unauthorized error despite valid token generation. Communication was professional, turnaround was fast, and the solution was clean and reliable. If you need someone for API debugging, authentication flows, REST integrations, or backend troubleshooting, I highly recommend working with them.
About Benjamin
Travel Tech | Amadeus GDS | Sabre | Airline APIs | OTA Integration Pro
100%
Job Success
Ondo, Nigeria - 1:53 am local time
That's what I fix.
I help travel agencies, travel consultants, OTAs, and travel tech companies build scalable booking platforms using Amadeus GDS, Amadeus CRS, Sabre, REST APIs, AI automation, and modern web technologies — without the usual trial and error.
If you're dealing with any of this:
Amadeus GDS integration that keeps failing
Sabre ticketing or reservation issues
Flight booking workflows breaking under load
OTA booking engine performance problems
PNR, itinerary, or reservation management issues
Payment gateway or checkout failures
API integrations that keep disconnecting
Hotel, flight, or car rental sync problems across suppliers
CRM and travel automation that don't talk to each other
Customer service eating up too much manual time
...you're losing bookings and revenue every day it stays broken.
What I do:
Amadeus, Sabre & GDS Integration
Amadeus GDS integration, Amadeus CRS configuration, Sabre integration, flight booking automation, airline reservation systems, PNR creation & management, ticketing and re-ticketing, refunds and cancellations, IRROPS (schedule change) handling, lowest fare search, complex multi-city itineraries, corporate travel booking.
OTA & Booking Platform Development
OTA development, booking engines, hotel booking systems, flight reservation platforms, car rental platforms, vacation and corporate travel solutions, availability and pricing engines, calendar sync, search and filtering.
API Integration & Automation
REST and SOAP API integration, GraphQL, payment gateway integration, CRM integration, n8n workflow automation, booking confirmation systems, automated email/SMS/WhatsApp notifications, customer support automation.
AI Automation for Travel Businesses
AI-powered customer support, itinerary generation, lead automation, CRM automation, and workflow automation using tools like n8n and OpenAI so your booking system doesn't just work, it runs itself with less manual overhead.
What you get:
Reliable GDS integrations, scalable booking platforms, faster ticketing and reservation workflows, secure payment systems, automated customer support and CRM workflows, less manual work, and a travel system built to handle growth instead of breaking under it.
Send me a message with what's breaking or what you're trying to build, I'll be straight with you about whether I'm the right fit and what it'll take.
Steps for completing your project
After purchasing the project, send requirements so Benjamin can start the project.
Delivery time starts when Benjamin receives requirements from you.
Benjamin works on your project following the steps below.
Revisions may occur after the delivery date.
Project Review & Planning
Review your requirements, business workflow, preferred AI platform, integrations, and define the voice assistant architecture.
AI Voice Agent Development
Build your AI voice assistant using Retell AI, Vapi, or Bland AI, including prompts, call flows, speech processing, and business logic.