You will get 24/7 AI Voice Agent That Answers Calls and Books Appointments
Project details
Every missed call is a lost customer. My AI voice agent makes sure that never happens again.It answers on the first ring, 24/7. Qualifies the caller.
Books the appointment straight into your calendar. Sounds human — not robotic.
Why this works:
I come from 6+ years in B2B sales. I know what a qualifying call should sound like — the pacing, the objections, the close. Most AI agents fail because they're built by developers who've never sold anything.
Mine are built by someone who has.
Built for:
Real estate teams losing leads to slow follow-up.
Dental, medical, and law offices drowning in booking calls.
Home services that need to quote fast.
Restaurants handling reservations.
Any business where the phone = revenue.
Tech stack:
Vapi, Retell, ElevenLabs, Twilio.
English + Spanish supported.
Production-grade infrastructure — not a prototype.What happens after you order:
You'll get an onboarding form within the hour. We'll map your call flow, I'll build and test the agent, and you'll review it before it goes live. Post-launch tuning included.
Pick the tier that fits your business. If you're not sure, start with Starter — you can always scale up.
Books the appointment straight into your calendar. Sounds human — not robotic.
Why this works:
I come from 6+ years in B2B sales. I know what a qualifying call should sound like — the pacing, the objections, the close. Most AI agents fail because they're built by developers who've never sold anything.
Mine are built by someone who has.
Built for:
Real estate teams losing leads to slow follow-up.
Dental, medical, and law offices drowning in booking calls.
Home services that need to quote fast.
Restaurants handling reservations.
Any business where the phone = revenue.
Tech stack:
Vapi, Retell, ElevenLabs, Twilio.
English + Spanish supported.
Production-grade infrastructure — not a prototype.What happens after you order:
You'll get an onboarding form within the hour. We'll map your call flow, I'll build and test the agent, and you'll review it before it goes live. Post-launch tuning included.
Pick the tier that fits your business. If you're not sure, start with Starter — you can always scale up.
AI Algorithms
Large Language Model, Transformer ModelAI Applications
AI Chatbot, AI Text-to-Speech, Automatic Speech Recognition, Conversational AI, Natural Language Understanding, Speech SynthesisAI Development Language
PythonAI Tools
Azure OpenAI, Hugging FaceAI Models
ChatGPT, GPT-4, LLaMA, WhisperWhat's included
| Service Tiers |
Starter
$250
|
Standard
$800
|
Advanced
$1,300
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 18 days |
Number of Revisions | 2 | 1 | 5 |
AI Model Integration | |||
Batch Normalization | - | - | - |
Database Integration | - | ||
Detailed Code Comments | - | ||
Image Upscaling | - | - | - |
MLOps | - | - | - |
Model Deployment | |||
Model Documentation | - | ||
Model Monitoring | - | - | |
Model Testing & Optimization | |||
Model Tuning | - | - | - |
Natural Language Processing | |||
NLP Tokenization | - | - | - |
Pre-Training | - | - | - |
Prompt Engineering | |||
Setup File | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$150 - $400Frequently asked questions
About Nicolas
AI Engineer | Voice Agents, n8n Automation, RAG & AI SaaS
Medellin, Colombia - 6:06 am local time
WHAT I BUILD:
- AI Voice Agents — 24/7 call answering, booking, and lead qualification (Vapi, Retell, Twilio)
- AI Agents & Automations — custom agents on n8n, Make, and raw Claude/OpenAI APIs
- RAG Systems — chat with your company docs, internal knowledge bases, support copilots
- AI-Powered SaaS — full-stack web apps with Claude/GPT built into the core workflow
- Workflow Automation — connect your CRM, email, Slack, calendar, and tools into one system
RECENT WORK:
• 24/7 AI voice agent that answers calls and books appointments for a service business
• Two-sided marketplace with Stripe Connect, geolocation matching, and worker verification
• Cross-platform mobile app for a K-12 school district (React Native, COPPA-compliant, offline sync)
STACK: Claude, OpenAI, n8n, Make, Vapi, Retell, Twilio, React, Next.js, React Native, TypeScript, Supabase, Stripe, Vercel.
WHY CLIENTS HIRE ME:
- 6 years in B2B sales before this — I build AI that actually moves revenue, not demos
- Bilingual English/Spanish — fast timezone overlap with US, EU, and LATAM clients
- Business-first thinking — I flag issues before they get expensive and push back when something isn't the right call
- Daily updates so you're never guessing. Fast iteration, real feedback loops.
Send a message and tell me about your project. I'll be straight with you about whether I'm the right fit.
Steps for completing your project
After purchasing the project, send requirements so Nicolas can start the project.
Delivery time starts when Nicolas receives requirements from you.
Nicolas works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery Call & Agent Script
30-min call to map your call flow, FAQs, tone of voice, and qualification questions. You get a written agent script and logic flow to approve before I build anything.
Build, Train & Test
I build the agent, connect it to your calendar and CRM, and run test calls to make sure it sounds natural and handles edge cases. You listen to recordings and give feedback.