AI Agents & Voice AI · Claude, OpenAI, Vapi, Retell
Never miss a call or a task again: AI agent and voice receptionist development
Voice AI receptionists that answer and book on the phone, multi-agent systems that do real work, and private AI that knows your documents.
Our AI agent and voice receptionist development goes beyond a chat box. We build phone agents with Vapi, Retell AI, ElevenLabs and Twilio, multi-agent systems on Claude and OpenAI, and RAG assistants that answer from your own files. For a website or WhatsApp bot only, see AI chatbots.
Based in Houston, Texas, working with businesses across the US.
The problem, and how we fix it
Missed calls and manual work cost you every day
These are the problems AI agents are built to remove.
01
Calls go to voicemail
After hours, at lunch or when the team is busy, callers hang up and phone the next business.
02
Staff repeat the same work
Reading documents, writing summaries and moving data between tools eats whole days.
03
Your knowledge is locked in files
Answers sit in PDFs, policies and old emails that nobody has time to search.
AI agents built, tested and kept under your control
We pick the right model for each job, give every agent clear rules and limits, connect it to your calendar, CRM and phone line, and log every conversation so you can review it. Sensitive data can stay on your own servers. Repetitive hand-offs between tools are handled with n8n and Make automation.
We work with businesses anywhere in the US, from a single location to many. Our office is in Houston, Texas, and every project runs online with calls, shared updates and monthly reports.
Results & reviews
AI platforms our engineers have shipped
From the public Upwork profile and portfolio of our engineering lead.
24/7AI phone receptionist that answers and books during the callEngineering · Upwork portfolio
Voice + textmulti-agent AI wellness platform with speech-to-text and Stripe subscriptionsDare Your Destiny · AI agents
Self-hostedlegal AI that drafts discovery responses without sending data to outside APIsWebEsq · Private AI
“Nauman has been a God-sent for me. My project involved complex interactions with AI agents and needed high levels of coordination and communication between agents and Nauman did everything magnificently. I am extremely satisfied and consider him and long term part of our organization's valuable resources. HIGHLY recommended.”
Saeed A.Multi-Agent AI System with Firebase & Stripe (n8n + Claude API)View on Upwork ↗
Verified Upwork review★★★★★
“Nauman was an outstanding development partner from start to finish. He built a complex AI-powered platform from the ground up, including multiple AI engines, user authentication, payment integration, and a full training module system, and delivered on time with high quality work throughout.”
“Nauman is an exceptional ML infrastructure developer who masterfully combines Python and Node.js expertise. His work resulted in 40% faster model inference times and 60% reduced memory usage through skilled optimization. Highly recommended for any ML infrastructure or API development project.”
A 30-minute Google Meet call about your goals, customers and current setup. You leave with clear next steps.
02
Custom plan
A written plan with scope, timeline and a fixed price in US dollars. No long-term contract.
03
We build, create & market
We do the work and share progress in weekly updates you can review online.
04
You grow
Weekly updates and a monthly report on leads, calls and sales, with more effort behind what works.
A typical AI agent project
Week 1Scope, milestones and success measures agreed before any code.
Weeks 2–3First agent built and tested on real examples.
Weeks 3–6Phone, calendar and CRM connected, with weekly builds you can try.
Launch +Live monitoring, call reviews and improvements.
Packages
Ways to start with AI agents
Every business is different, so we confirm a fixed price after your free call. Prices are in US dollars, and we can quote in other currencies on request.
Full-stack and AI systems architect with a 100% Job Success Score on Upwork. He has shipped 50+ platforms, from AI analytics dashboards and voice agents to telehealth SaaS and live video apps, and hands over full source code.
We work on US Central Time and schedule calls around your time zone, with a reply to every message within one business day.
FAQ
AI agent and voice AI questions, answered
What is the difference between an AI chatbot and an AI agent?
A chatbot answers messages. An AI agent can also take actions: book an appointment, update your CRM, read a document or pass work to another agent.
Can an AI receptionist answer my business phone?
Yes. We connect a voice agent to your number with Twilio, Vapi or Retell AI. It answers, asks your questions, books into your calendar and sends a summary.
Will callers know they are talking to AI?
We recommend the agent says so at the start. Modern voices sound natural, and the agent can transfer to a person at any time.
Is my data safe with AI agents?
We set strict rules on what each agent can see and do, log every action, and can run models on your own servers so client data never leaves your control.
Which AI models and tools do you use?
Claude, OpenAI and Gemini models, LangChain and MCP for agents, Vapi, Retell AI, ElevenLabs and Twilio for voice, and vector databases for document search.
How much does a custom AI agent cost?
It depends on the number of agents, channels and integrations. After a discovery call we send a fixed-scope quote in US dollars, paid in milestones.
Who owns the AI agent when it is finished?
You do. You get the source code, prompts, documentation and access to the cloud accounts it runs on.
Free, no obligation
Get your free AI agent plan
Tell us which calls or tasks you want off your plate. We will reply with a technical breakdown and a first milestone, whether or not you hire us.
