Available for new projects

Hi, I'm Andressa Cabral

AUTOMATIONAI · SOFTWARE · INTEGRATIONbuilt to fit

TYPESCRIPT · NEXT.JS · NODE · LLMs · N8N · SUPABASE

Founder of AI ProtocolGitHubLinkedInWhatsAppE-mail

I build products end to end: Node and TypeScript APIs behind React and Next.js interfaces, AI agents that do real work, and automations that run 24/7.

Custom software, automation and AIAI Protocol.

8PRODUCTS BUILT
24/7AUTOMATIONS IN PRODUCTION
4SERVICE LINES
20+TECHNOLOGIES IN USE

PRODUCTS

What AI Protocol has shipped.

In-house products, live and in development — each one started as a problem in a client project and became software.

All products
WHATSAPP CRMLive

LeadIn

The CRM that doesn't let a lead die in silence.

PROBLEM

Meta's official API closes a conversation 24 hours after the customer's last message. Past that, only paid templates — and the sales team has no idea the clock is running. Leads go cold in silence, template costs climb unnoticed, and nobody can say which agent let the conversation drop.

WHAT I BUILT

A full CRM on top of the official API: real-time radar of conversations about to blow the window, per-conversation cost (Meta spend plus template spend), a live ranking that rewards fast replies and closed deals while penalizing abandoned leads, multiple agents on one number with routing, transfers and unbroken history, and 39 permission levels across agent, supervisor and owner.

RESULT

A live product with three tiers (Basic, Pro, Enterprise), contact migration with history and tags preserved, a reply copilot on Pro, and ERP integration plus custom automation on Enterprise. It runs in the phone browser so the team can work from anywhere.

Next.jsTypeScriptNode.jsPostgreSQL+3 more
B2B PROSPECTINGLive

Protocolo SDR

B2B prospecting on the official CNPJ registry, with AI-written outreach.

PROBLEM

Purchased lead lists arrive stale, with no filter for size or activity, and the outreach is identical for everyone — which guarantees a low reply rate and a burned number.

WHAT I BUILT

Queries the official public CNPJ registry with filters for activity code, company size, region and registration status, enriches contact data, and generates AI-personalized outreach per company, delivered over WhatsApp at a controlled cadence.

RESULT

A prospecting pipeline that goes from a generic list to a queue of genuinely eligible companies, with the first message already written in each business's context.

Node.jsPostgreSQLClaudeGPT+2 more
LEAD INTELLIGENCELive

Signal OS

Multi-source lead discovery, with AI ranking and intent classification.

PROBLEM

The signal that a company is ready to buy is never in one place — it is spread across sources, and nobody has time to cross-reference all of it by hand every day.

WHAT I BUILT

Collectors for multiple sources, deduplication, and an AI layer that classifies intent and ranks leads by real likelihood of a conversation, not alphabetically.

RESULT

A daily lead queue already sorted by who is worth today's call.

PythonNode.jsPostgreSQLLangGraph+2 more

WHAT I DO

Services.

I take the whole product, or slot into your team where it hurts — from database schema to shipped interface.

01

Software Development

Web apps, SaaS, dashboards, extensions and PWAs — from database schema to interface.

  • APIs and business logic in Node.js and TypeScript
  • React and Next.js front-ends wired to real data
  • Auth, permissions and payments
  • Data modelling in PostgreSQL and Supabase
  • Docker and Vercel deployment, with CI
Next.jsReactNode.jsTypeScriptPostgreSQLSupabase
02

Process Automation

Workflows running 24/7 across WhatsApp, email, spreadsheets, CRM and payment gateways.

  • Orchestration in n8n and custom workers
  • Official WhatsApp Cloud API, no workarounds
  • PIX billing and reconciliation
  • Spreadsheet, CRM and database in sync
  • Alerts, retries and logs on every run
n8nWhatsApp Cloud APIPIXWebhooksDocker
03

AI & LLMs

Agents that classify, extract, generate and decide — with RAG and multi-agent orchestration.

  • Classification and structured data extraction
  • RAG over the client's knowledge base
  • Multi-agent orchestration with LangGraph and MCP
  • Evaluation: the agent is measured, not just demoed
  • Guardrails, per-call cost and fallback
ClaudeGPTLangGraphMCPRAGPython
04

API Integrations

Connecting systems never meant to talk to each other — and keeping the conversation alive.

  • Meta APIs: WhatsApp, Instagram and Graph
  • Official public registries, including CNPJ
  • Payment gateways and PIX
  • Signed webhooks, queueing and replay
  • Documentation and a test environment included
Meta APIsRESTWebhooksOAuthCNPJ

TRAJECTORY

How I got here.

LeadIn

LeadIn — WhatsApp CRM

The most recent and the densest: a full CRM on top of Meta's official API, built around a number nobody was watching — the 24-hour window.

WHAT WAS DONE

  • Real-time radar of conversations about to close the window
  • Per-conversation cost: Meta and template spend, made visible
  • Live ranking rewarding fast replies and penalizing abandoned leads
  • Multi-agent on one number, with 39 permission levels
  • Three live tiers, contact migration and a reply copilot

STACK

Next.jsTypeScriptNode.jsPostgreSQLWhatsApp Cloud APIWebhooks

TOOLBOX

Skills.

CORE STACK

TypeScriptNext.jsNode.jsPythonPostgreSQLClaude

Product Engineering

CORE

AI & Agents

7 skills

ClaudeGPTLangGraphMCPRAGPrompt engineeringEvals

Frontend

8 skills

ReactNext.jsTypeScriptTailwind CSSMotionHTML5CSS3Flutter

Backend

6 skills

Node.jsPythonREST APIsWebhooksAuth & permissõesPHP

Automation

6 skills

n8nWhatsApp Cloud APIMeta Graph APIPIXFilas & retryCron

Data & Infra

7 skills

PostgreSQLSupabaseMySQLDockerLinuxVercelGit

Web3

5 skills

dAppsNFTsDeFiCarteirasContratos

Design & Product

4 skills

FigmaDesign systemsUX de conversãoAcessibilidade

PLAYGROUND

Live code.

The left panel is rendered by the code being typed on the right.

localhost:3000
available

AI & automation
that run themselves.

APIs in Node behind interfaces in Next.js.

Talk nowSee products

· contato@aiprotocol.com.br

hero.tsx — AI Protocol
hero.tsxstyles.cssapi.ts
1
hero.tsxtyping…

CONTACT

Let's build

Got a product to get off the ground, a manual process that should have been automated already, or an idea that needs someone to actually pressure-test it? Message me.

GET IN TOUCH

Send me a message

· Brasília time