How to build a remote MCP server in Laravel
A Laravel MCP server that Claude and ChatGPT reach over OAuth, act as the signed-in user, dry-run bulk writes, log every change and can be revoked at once.
9 min read
I build the platformsthat money and datamove through.
Tech Lead and full-stack engineer in Montevideo. Ten years across fintech, crypto and telemetry — mostly on systems that are not allowed to fall over.
- Currently
- ContamosFounder · personal project
- CriptalaDevelopment Lead
- rabbit | iotCo-Founder & CTO
Work
Four systems worth explaining
Each of these solved a problem that could not be bought off the shelf.
Contamos
2026 — present
from first commit to production
My own product, built alone: a shared ledger for money kept in several currencies, fiat and crypto, where every movement keeps the rate of its day. Claude or ChatGPT can connect to it, answer from the real figures and write movements down.
- Laravel
- React
- Inertia
- MCP
- Paddle
Criptala
2021 — present
active users
A crypto trading and payments platform taken from an empty repository to production, with fiat and crypto gateways behind a single API. I own the architecture, the schema and the roadmap.
- Laravel
- React
- Inertia
- REST API
- Docker
rabbit | iot
2025 — present
and built the platform
LoRaWAN telemetry ingestion, payload decoding and alerting for farms and industrial sites. Multi-tenant from the first commit, with real-time dashboards on top.
- LoRaWAN
- Laravel
- React
- Multi-tenant
- Telemetry
RFID inventory system
2016 — 2020
person-hours per count
An annual inventory count that occupied five people for twenty hours each. Rebuilt around RFID tags and a reconciliation pass, it now takes one person an afternoon.
- RFID
- GeneXus
- Operations
How I work
AI belongs inside the process, not beside it
Most teams bolt AI onto the end of their workflow: a chat window in another tab, used for whatever felt tedious that afternoon. I have spent the last two years pushing it the other way — into specification, implementation and review, where the constraints actually live and where a wrong answer is still cheap to catch.
What changes is the shape of the work rather than its volume. Writing code stops being the bottleneck, and the bottleneck becomes deciding what is worth building and judging whether what came back is correct. Neither of those is automatable, and both are the parts I would want to be doing anyway. The acceleration comes from collapsing the distance between them.
The practical lesson has been that context beats tooling. Clear specifications, typed interfaces and documented decisions matter far more than which model is answering, because a codebase legible to a new engineer is legible to a model for the same reasons. Most of the work is making the system explain itself — which is worth doing whether or not anything is reading it.
- In the loop
- Claude Code, MCP, Cursor, Codex
- Applied to
- Specification, implementation, code review
- Beyond the editor
- n8n, Slack integrations, internal workflows
Before
The rest of it
2020 — 2024
BlueBoot
Software Developer
Enterprise business software on SAP BTP, with JavaScript on the front.
2020
Dvelop Software
Software Developer
Backend and frontend for Midinero, including the prepaid card recharge system and the Empresas platform.
2016 — 2020
heXa Sistemas
Software Developer
Internal systems for fintech and healthcare clients in GeneXus and Laravel. Home of the RFID rebuild.
BSc in Computer Science, Universidad de la Empresa, Montevideo (2017 — 2022).
Writing
Notes from the work
How to store money in a database: never as a float
DECIMAL or integer minor units, how many decimal places each currency needs, where to round, and how to keep amounts exact in PHP and Laravel.
9 min read
How I built a SaaS alone in four weeks
The solo founder tech stack behind Contamos: Laravel, managed auth, billing and hosting, plan limits in one place, and tests as the contract.
7 min read