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AI-powered WhatsApp agent bridging the financial documentation gap for street food vendors across Latin America

🏆 KevinXu Innovation Prize Finalist

What is CreceAI?

CreceAI is a WhatsApp AI agent built specifically for street food vendors — the vendedores ambulantes who feed millions of people every day across Latin America yet remain completely invisible to the formal financial system.

The core problem we're solving is not just poverty — it's the absence of financial data. Street vendors have no income records, no expense logs, no financial history. Without data, there are no loans. Without loans, there is no growth. Without growth, survival mode never ends.

CreceAI sits inside WhatsApp — the app already on every vendor's phone — and helps them build their financial story, one conversation at a time. Every sale logged, every expense tracked, every pattern identified becomes a piece of data that didn't exist before.

CA

CreceAI

en línea

Hoy vendí 45 soles en desayunos ☀️
¡Excelente! Ya llevas S/. 312 esta semana. Tus mejores días son lunes y martes 📈
Gasté 20 en ingredientes
Anotado. Tu margen de hoy fue del 55% — mejor que ayer 💪

Our Belief: Data is Everything

“You can't improve what you can't measure.”

— the principle behind every decision we made

Our unique selling point is simple but radical: financial data, built from scratch, through conversation. No spreadsheets. No formal accounting. Just a WhatsApp chat that quietly turns daily transactions into a structured financial record.

This data is not just useful for the vendor — it is the foundation of everything else. Access to credit, business planning, growth tracking, and eventually formalization all require one thing first: proof that a business exists and operates. CreceAI creates that proof.

The Problem

$1.65 trillion in Latin American economic activity operates informally¹ — that's 33% of the region's GDP completely invisible to governments and banks. Street vendors face daily barriers: no financial records means no business loans, bureaucracy blocks formalization, and this massive informal economy remains trapped in survival mode instead of generating regional growth.

Post-COVID digital acceleration created a $2.6B fintech boom⁵ in Latin America, but 3,069 startups⁶ focus on formal banking. Meanwhile, 92% WhatsApp adoption⁷ gives us direct access to informal workers — yet no one has built for them.

Street food vendor — the people CreceAI is built for

The street food vendors CreceAI is built for — invisible to the formal financial system

$1.65T

Informal economic activity in LatAm

200M+

Informal workers in the region

92%

WhatsApp penetration in LatAm

80

Peru vendors using CreceAI (Dec 2025)

Ideation

How we went from a broad vision to a focused, validated product

Phase 1 — The Original Vision

We started with an ambitious, two-part product: a financial tracker combined with a RAG-powered memory system that gave vendors on-demand access to legal documentation for formalizing their businesses.

The logic seemed airtight. Informality is a problem. Formalization is the solution. Give vendors the tools to manage their money and the knowledge to go legal. Kill two birds with one stone.

Initial product concept:

  • WhatsApp AI agent for daily income/expense tracking
  • RAG system with indexed legal documents (tax registration, licensing)
  • Step-by-step guidance toward business formalization

Phase 2 — 40+ User Interviews

Before building, we went to the streets — literally. We conducted 40+ in-depth interviewswith street food vendors in Peru, asking about their daily realities, their fears, their goals, and what would actually make their lives better.

Peru — where CreceAI was first tested

Peru — where we conducted our field research and first deployments

What we heard was not what we expected.

“Formalizarme? Eso es lo último en mi mente. Primero necesito saber si puedo pagar el almuerzo de mis hijos hoy.”

— Vendor, Lima

“Si me registro, me vienen a cobrar impuestos. Y yo no tengo ni para terminar el mes.”

— Vendor, Lima

Phase 3 — The Real Picture

The interviews shattered our assumptions. Business formalization was not on vendors' minds at all. Two things dominated every conversation:

💸

Daily Survival

The overwhelming priority was making enough money to close the day with something left. Not growth. Not loans. Not registrations. Just surviving today.

⚠️

Fear of Formalization

Many vendors actively feared going formal. Taxes, inspections, fees — registering their business felt like a threat, not an opportunity.

The RAG system for legal documentation? Solving a problem nobody had asked us to solve. We had been designing for our assumptions, not for their reality.

Phase 4 — The Pivot

We stripped the product back to its core: financial management only. No legal docs, no formalization guidance — just a frictionless way to track income, expenses, and build the financial awareness that vendors never had access to.

Before

  • Financial tracker
  • RAG legal document library
  • Formalization guidance
  • Built on assumptions

After

  • Financial tracker
  • Income & expense logging via chat
  • Insights & progress reports
  • Built on 40+ interviews

Phase 5 — Why This Focus Opens Every Door

Focusing on financial management was not a retreat from our original ambition — it was the smarter path to it. Here is the thinking:

A vendor who is worried about surviving today cannot think about tomorrow. A vendor who knows their numbers, tracks their progress, and feels financially stable for the first time — that vendor can start asking “what's next?”

📊

Financial tracking

📈

Financial stability

🏦

Credit access

📋

Business formalization

Financial management is not just one feature — it is the prerequisite for everything else we originally wanted to build. Formalization, credit, growth — all of it becomes possible once a vendor has data, awareness, and breathing room. We decided to nail that foundation first.

The Solution

CreceAI leverages the ubiquity of WhatsApp in Latin America to deliver an AI agent that helps informal workers log income, track expenses, and understand their financial patterns — all through natural conversation, in Spanish, with zero onboarding required.

Architecture

Tech Stack

FastAPI

Python web framework — exposes a single endpoint POST /whatsapp-endpoint

Uvicorn

ASGI server that runs FastAPI inside Docker

Docker

Containerizes the entire application for consistent deployment

Redis

Stores and retrieves per-user conversation history

OpenAI GPT-4o

Generates responses using system prompt + conversation history

Twilio

WhatsApp Business API — receives and sends messages

Message Flow

1

User sends a WhatsApp message

2

Twilio receives it and forwards it to your /whatsapp-endpoint via HTTP POST

3

FastAPI processes the request — extracts the phone number and message

4

Redis fetches the conversation history for that user

5

OpenAI GPT-4o generates a response using the system prompt + history

6

Redis saves the updated conversation history

7

Twilio sends the GPT response back to the user's WhatsApp

Impact & Recognition

  • 🏆KevinXu Innovation Prize Finalist — Selected from hundreds of global submissions for innovative approach to economic empowerment
  • 🌎Designed to serve the 200+ million informal workers across Latin America
  • 🛒As of December 2025, 80 vendors in Peru have used CreceAI
  • 📱Leverages WhatsApp's 92% penetration rate in Latin American markets to eliminate user acquisition friction
  • 💡Addresses a critical gap in financial inclusion and economic mobility for underserved populations
📰 Read the News Article

Featured in Equitech Futures — Rhodes Forum on Technology & Society