Software · Systems · AI — USA & Brazil

We engineer the systems that run your business —
built at AI speed, operated by us.

X402 is a software and systems company. We leverage AI across the entire engineering cycle — self-improving delivery loops that compress months of work into days — and we operate what we build, from the factory floor to the back office. Then we bring the same AI leverage to your team.

  • 4,073+industrial machines monitored across 5 plants, 3 countries
  • 35,000+bank customers on stablecoin rails we built & run
  • 24/7systems we run in production, never hand off
  • US · BRsoftware & electrical engineers on staff
x402 — operations
$ x402 status --all
● livepaymentspix · on-chain · m2m
● upcloudmulti-region · iac
● upnetworkencrypted mesh · segmented
● sealedmail-notaryrfc-3161 · object-lock 10y
● upmeetwebrtc · p2p · e2e media
● syncedblockchainblock producer + relays
● activeai-agentsagents · pipelines · mcp
$

We secured the systems first. Then we gave them AI.

Thirty years of information security and infrastructure management are why our AI can be trusted with real operations. Anyone can give an agent power; we know how to take it away. Because we build the core layer ourselves — networks, identity, storage — our agents get exactly the access they need and not one permission more, and your data stays protected from rogue automation, accidental deletion and unauthorized access alike.

Contained by design

An agent can only touch what its least-privilege credentials allow — and it cannot escalate. We build the cage before we build the agent: segmented networks, scoped keys, zero standing access.

Un-deletable data

Immutable, locked backups that no automation — and no mistake — can erase. If an agent ever goes rogue, the blast radius was drawn before it was deployed.

Audited end to end

Every action an agent takes is attributable, logged and reviewable. Trust is earned by evidence, not promises — ours comes with the audit trail built in.

Your industry. Your problem. Our system.

We work with enterprises and mid-market operations that have real complexity — and want a partner who builds it, operates it, and stays.

Aerospace & Defense

Flight-grade systems where a bug isn’t a ticket — it’s a failure review.

We bring avionics-grade discipline to data and software — deterministic pipelines, traceable requirements, redundant-by-design architectures and verification you can put in front of an auditor. From telemetry, simulation and ground systems to fully autonomous drones flying AI-planned flight paths, we engineer to tolerances most software never has to meet.

Government & Public Sector

Public systems where every action must be lawful, auditable and never lost.

We build to the public-sector bar: least-privilege access by construction, immutable audit trails, evidence-grade retention and AI agents that integrate directly with government networks — tax authority, registries, procurement, official records — so agencies and the companies serving them move faster without ever cutting a compliance corner.

Energy & Critical Infrastructure

Systems where downtime isn’t an outage ticket — it’s the lights going out.

Hardened, redundant control and monitoring for infrastructure that cannot fail: segmented networks, zero-standing-access security, real-time telemetry and automated failover — the same operational discipline we already run on our own 24/7 production systems.

Semiconductors & Advanced Hardware

Designs measured in nanometers, with test and yield data nobody can afford to lose.

We build the data and automation backbone for advanced hardware — test, traceability, yield analytics and the secure handling of designs worth more than the fab — with the verification and least-privilege rigor that engineering at this precision demands.

Medical Devices & Life Sciences

Software that touches patients, under regulators who don’t accept “move fast and break things.”

Validated, auditable systems for regulated environments — device data, lab and imaging pipelines, traceability and quality records — built with the verification, least-privilege security and immutable audit trails that medical-grade work demands.

Robotics & Industrial Automation

Machines, sensors and control loops that have to act in real time, every time.

We live where software meets hardware: real-time control, sensor fusion, machine vision and the edge-to-cloud data layer that ties a fleet of machines together — with electrical and software engineers on the same team, exactly as our factory-floor work already proves.

Autonomous Vehicles & Mobility

Self-driving systems where the model has to be right at 70 mph, not on average.

We build the perception, control and data infrastructure behind autonomous driving — sensor fusion, computer vision, real-time decisioning and the fleet-scale pipelines that turn road data into safer models — held to the millisecond-and-millimeter tolerances the road demands.

Telecommunications & Networks

Carrier-grade networks where milliseconds and uptime are the product.

Encrypted mesh and segmented networks across sites and continents, real-time voice and messaging at scale, and the routing, failover and monitoring that keep them up — the same networking depth that sits under every system we operate.

Manufacturing & Factory Operations

Your production data lives in spreadsheets, a shift behind the floor.

We instrument every machine — even decades-old equipment with no digital output — and stream it into one live system: real-time OEE, downtime, yield and energy. Then we build the operations software that runs on top of that data, so one floor or forty plants across three continents run on the same platform.

See the live fleet →

Agriculture & Remote Operations

Land and assets too vast and too remote to watch by hand.

Autonomous drones, sensors and AI agents that monitor land and remote operations at scale — crop health, asset condition, change over time — turning ground nobody can walk into a dated, geo-tagged record you can act on, exactly as our 500+ drone fleet already proves.

See the fleet →

Logistics & Supply Chain

You find out about exceptions after the customer does.

We build the real-time visibility layer across your carriers, warehouses and borders, then put AI agents on top that watch every shipment and flag the ones going wrong — early enough to act before a delay becomes a chargeback, a stockout or a lost customer.

Retail & E-Commerce

Orders, inventory and fulfillment run on three systems that don’t talk.

We unify storefront, inventory, ERP and shipping into a single source of truth, then automate the manual middle — order routing, stock sync, supplier purchase orders and last-mile coordination — so the whole operation runs without anyone re-keying data between tabs.

Healthcare & Professional Services

Your back office runs on repetitive manual work that can’t afford errors.

We build AI-agent pipelines for the high-volume, zero-margin-for-error work — billing, scheduling, records, intake and compliance — with human-in-the-loop checks and full audit trails built in, so automation earns trust instead of adding risk. Held to the standard your regulators expect, not a demo.

Financial Services & Brazil Compliance

Brazilian tax, registry and reporting filings are a full-time engineering problem.

We build AI agents that operate directly inside Brazilian government and financial networks — tax authority, official registries, public procurement, fiscal documents — handling filings, reconciliations and deadlines automatically, with the evidence trail auditors and regulators require.

Real Estate & Workplaces

A building full of people, devices and systems that don’t talk to each other.

We design and run the entire building stack — network, firewalls, access control with RFID and biometrics, surveillance wired to real actions, and climate, lighting and energy automation — with redundancy at every layer and the option to operate it 24/7, the way we’ve run multi-building campuses for over a decade.

Build. Consolidate. Capacitate. Operate.

Four phases, one outcome: your operation running on systems you own — with the option to have us run them 24/7. No handoffs, no dependency, no black boxes.

01

Build

We design and build custom systems for your operation — from the machine controller to the cloud to the AI layer on top. We own the outcome from day one.

02

Consolidate

We pull your scattered ERPs, spreadsheets and tools into one system that runs the whole operation. Everything talks — because we built it to.

03

Capacitate

We train your entire team — shop floor to board — to build, run and improve the system, including building their own AI agents. Not a workshop. An operating discipline.

04

Operate

You choose: run it yourselves with us on call for the hard parts, or have us operate everything, 24/7, under contract. Either way, the system is yours.

We can deliver in a fraction of the typical time because we operate what we build. We can hand your team the keys because everything is open source and documented — and it's documented because we're the ones reading it at 3 a.m. Copy one piece and you don't get the others; that's the point.

One protocol. A whole product suite.

Machine-to-machine products built on the open x402 protocol and next-generation payment rails — agentic payments, commerce and on-chain primitives, composable from day one.

Payments

x402 Pix

M2M payments on Brazil's fastest rails.

A machine-to-machine payment system — with a human in the loop — that leverages Brazil's ultra-fast Pix rails for instant, agent-initiated settlements.

Commerce

x402 e-Commerce

Where agents shop for agents.

A machine-to-machine e-commerce platform where AI agents browse, negotiate and purchase on behalf of their principals.

Intelligence

x402 AI

Custom agents, shipped.

Bespoke AI agent development — domain-tuned, tool-equipped and ready to act inside the x402 ecosystem or your own infrastructure.

Marketplace

x402 Marketplace

The M2M2H exchange.

A machine-to-machine-to-human marketplace bridging autonomous agents with human sellers and service providers through a unified settlement layer.

Cryptography

x402 ZK Proofs

On-chain notarization for documents.

Replace public notaries with zero-knowledge proofs anchored on-chain — verifiable, private and natively machine-readable.

Security

x402 InfoSec & InfraMgmt

IT done right.

Specialist infrastructure management with deep attention to information security — the trust layer underneath everything else in the suite.

Communications

x402 Communications

Agents that talk, humans that listen.

Machine-to-human voice and messaging — letting agents reach people on the channels they already use, programmatically and at scale.

Government

x402 Gov

Bridge to public systems.

Integration systems that connect companies to government platforms — tax, compliance, registries — so agents can transact with the public sector.

Engineering

x402 CAD

Machine-powered design.

Machine-powered CAD with machine-to-machine payment options built in — design tooling agents can drive and pay for.

End to end. No handoffs.

From the rack to the cloud to the AI layer on top. X402 takes ownership of the whole stack — architecture, implementation and day-2 operations — so the systems that run your business don't depend on luck.

Cloud Architecture

Deep, hands-on work across the major public clouds — managed email, object storage, key management, serverless, edge delivery, DNS and streaming ingestion — plus enterprise identity and tenancy design. Everything reproducible, documented and least-privilege.

Virtualization & Private Cloud

Hypervisor clusters, ZFS storage, immutable backup chains on dedicated backup servers, and hybrid designs that bridge on-premises hardware with public cloud where it makes sense.

Network & Security

Encrypted open-source mesh networks across sites, enterprise routing and switching, VLAN segmentation, firewalling and zero-standing-access policies for sensitive environments.

AI Integration & Automation

Agentic workflows and automation pipelines built on frontier AI models — document processing, operations tooling and business automation that actually ships to production.

Real-Time & Communications

WebRTC conferencing, TURN/STUN infrastructure, SIP telephony and full-stack email systems — DKIM, SPF, DMARC, inbound processing and deliverability done right.

Compliance Engineering

Evidence-grade data retention: WORM object storage with compliance-mode locks, managed encryption, RFC-3161 trusted timestamping and audit trails built for regulators and courtrooms, not just checklists.

Machine-to-Machine Payments

Proprietary payment systems native to the USA and Brazil, built on the open x402 protocol: HTTP-native payment flows, instant Pix rails, stablecoin settlement on-chain and bridges to legacy rails — so software can pay software.

Government Integrations

AI-agent integrations with Brazilian government networks — tax, registries, official gazettes and public procurement — helping corporations streamline operations, cut costs and stay compliant.

Data & Market Intelligence

Sector research engineered as data: scraped, normalized, queryable databases — automotive marketplaces, healthcare imaging, rare-earth supply chains — with verification baked into the pipeline.

4,073 machines. 5 plants. 3 countries. 40 days.

A global manufacturer ran 4,000+ production machines on clipboards and guesswork across three continents. We wired every one to speak — and built the system that now runs the operation.

Before

Production was counted by hand. A manager learned a machine had stopped hours after it happened — and rarely knew why. The numbers that ran the business lived in spreadsheets, a full day behind the floor — across three continents.

What we built

We designed and built the hardware that taps each machine controller directly — opto-isolated signal conditioning and PoE-powered single-board agents, each firewalled and remotely manageable to the point of hard power-cycling any individual unit from anywhere in the world. All five plants connect over an encrypted open-source mesh network. The platform ingests 80,000+ live signals fleet-wide, computes real-time OEE and fault detection per machine, and integrates two-way with the ERP — consolidating six fragmented business data sources into one custom operating environment X402 built for the client.

The result

4,073+ machines now instrumented across 5 plants in Brazil, the United States and China. Planned in 1.5 months, executed in 40 days — hardware sourcing, in-house firmware and global commissioning included. A second customer deployment is already underway: 2,000 machines, countryside Brazil.

4,073+machines instrumented
20+signals / machine
40 daysplanned 1.5 mo · deployed
custom firmwareencrypted meshPoE fleetreal-time OEEERP integration5 plants · 3 countries
Running operations blind? Talk to us
fleet-monitor — 5 plants
4,073+ machines
80,000+ live signals
10,284,910,420 revolutions
CountryPlantMachinesStatus
BR 01 40+ ● live
US 02 721 ● live
US 03 815 ● live
CN 04 1,045 ● live
CN 05 1,452 ● live
encrypted open-source mesh ● all plants connected

Three banks. One rail. Stablecoins in and out of bank accounts.

We believe global financial settlement migrates to blockchain within the next 2–5 years. We're not waiting — we already build the rails banks run on today.

The need

An American fintech needed to integrate with a major settlement blockchain so banks could offer their customers crypto on- and off-ramp of USDC and USDT. Three banks signed up for the service.

What we built

As part of the core engineering team on a larger build — this one wasn't ours alone — we helped deliver a payment-rails platform, open source under the hood and built to order, that creates a dedicated on-chain address for every end user. Customers send USDC to and from it; funds are credited straight to their bank account, and from there move on-chain or over legacy rails — their choice.

The scale

35,000+ end users across the three banks — ~10,000, ~20,000 and ~5,000 each — with the platform handling ~1,400 stablecoin transfers a day, roughly 42,000 a month, half a million a year.

3banks live
35,000+end users
~1,400transfers / day
settling now transfers today

Figures approximated to preserve client confidentiality.

Blocks we're minting. Right now.

We operate one of the top block producers on a major public blockchain. We pull it straight from the public chain — refreshed every few minutes, and every row below is a real block our infrastructure produced.

blocks minted, all time connecting to the chain…

    What it takes to stay at the top.

    Running one of a network's top block producers is the opposite of "spin up a node." It is a 24/7 operation where a single missed block is revenue gone and trust spent — so every layer is engineered for it.

    Under 200ms, worldwide

    A new block has under five seconds to reach every node on Earth or it gets orphaned. Ours typically propagate in under 200 milliseconds — which only happens with relays on multiple continents and tuned, low-latency peering.

    Redundant, always

    Redundant block-producing and relay nodes, hardened key handling, UPS-backed power and automated failover with instant cutover. Five minutes of downtime is measured in missed blocks and lost rewards.

    Peered with the network

    We coordinate directly with other major producers on topology, relays and connectivity. A healthy chain is shared infrastructure — block production is a team sport, not a solo node.

    Watched every second

    24/7 monitoring of slot timing, missed-slot rates, peers and chain density, with alerting and on-call response — problems on a producer have to be caught in seconds, not the next morning.

    Upgrade & hard-fork ready

    Coordinated node upgrades and hard-fork rehearsals across the operator community, staged and verified before every protocol change so we cross each transition without missing a block.

    Stake that compounds

    A producer only mints in proportion to the stake that trusts it. We run the delegator relations and marketing that attract stake and keep it — turning reliability into reputation into more stake.

    500+ drones. No pilots. The whole farm, watched from the air.

    A large American farm needed to see land no crew could walk. We built the autonomous flight agents that fly it for them — and the hardware they fly on.

    The need

    A large row-crop farm in the United States had more acres than any crew could walk. Crop health, problem spots and change over time went unseen until they showed up at harvest.

    What we built

    Autonomous flight agents on 500+ drones that plan and fly their own RTK-GPS-tracked routes over every field, capture high-resolution imagery on schedule, and complete each mission — takeoff to landing — with no pilot on the sticks.

    The result

    The farm now sees every acre on a cadence, catches trouble early from the air, and holds a dated, geo-tagged photographic record of its land over time — flown autonomously, start to finish.

    500+ autonomous drones in the fleet autonomous · GPS-guided
    acres scanned today
    high-res images captured
    RTKGPS precision
    0pilots required

    The first building of New York's largest coworking company: redundant everything, down to the door locks.

    Before AI, the same discipline: as infrastructure and security specialists we deployed the entire first building of New York's largest coworking company — and made the building itself enforce the business.

    The job

    Servers, firewalls, switches, access points — redundant everything. A captive portal wired into the ERP: paying members got network access, late accounts didn't — billing enforced by the network itself. Access control by RFID and biometrics.

    The doctrine

    The best hardware from the best manufacturers, tied to none. We've run hands-on every class of firewall, network OS and desktop or server platform in the trade — so we pick the best for each case and combine technologies where one beats another. And we are masters of disaster recovery and high-SLA design — redundancy isn't a feature, it's the default.

    Buildings that run themselves

    The same competency extends to enterprise automation: lighting, climate and heating/cooling efficiency, sprinklers, and camera surveillance integrated to real actions — open-source automation cores, hardened to enterprise grade.

    Decades running other companies' operations.

    Long before agents, we were the ones whose phone rang when a switch died at 2 a.m. Physical operations are systems too — redundant everything, single pane, documented runbooks. That muscle is where our high-SLA, 24/7 operation contracts come from.

    The VC hub

    For over a decade, until 2022, we managed the entire infrastructure of Brazil's leading startup and venture-capital innovation hub: three buildings in São Paulo, ~1,000 active users a day — redundant firewalls, switches, PoE access points, cameras and access control, end to end.

    The education campus

    From 2019 to 2022 we built and ran both São Paulo floors of a Silicon Valley online-education company: 100+ people a day, everything under our management — ERP, access control, cameras, alarm system — with fiber backbones joining the two offices into one network.

    The financial group

    For 13 years we ran the US operations of a South Korean financial group — private-equity, VC and trading offices from New York to San Francisco: three floors, 50+ professionals, 100+ managed devices, and the full stack under our management — voice, network, firewalls, file sharing, email.

    5,000 mailboxes that defend themselves.

    Open source and closed source are not opposing camps — they're parts. We combine them where each is strongest.

    The need

    A client with 5,000 team members on a closed-source corporate mail platform needed custom two-factor authentication and custom routing the platform couldn't provide — without abandoning it.

    What we built

    The entire DNS layer, plus an open-source Postfix relay tier for inbound and outbound delivery — with inbound acceptance tied to the corporate directory, so the relays only accept mail for addresses that actually exist. Custom 2FA and routing on top.

    It defends itself

    Open-source spam and phishing detection with an AI layer trained in real time on live flow — inbound and outbound. Outbound detection catches compromised mailboxes, locks them and pages the sysadmin; a security bot watches failed logins and blocks attackers in escalating tiers.

    The right AI for each job — not the most expensive one.

    Most “AI consultants” know one model. We run a fleet — and route every task to the cheapest one that clears your bar for accuracy, data residency and cost. Frontier reasoning when a mistake costs more than the tokens; private models on our own GPUs when nothing can leave your perimeter; open-weight models, fine-tuned, when sheer volume makes pennies matter.

    We don't sell you one model. We run a fleet.

    Every AI is brilliant at something and wasteful at everything else. The skill isn't betting on a vendor — it's matching each task to the model that clears your bar for accuracy, privacy and cost, and switching the day a better one ships. That's an engineering decision, and we've been making it in production for years: agent pipelines, document processing, real-time voice.

    Sometimes the right answer is the frontier model that costs real money. Sometimes it's an open model on hardware we control — same result for a fraction of the price, and your data never leaves home. Knowing which is which is the whole job.

    And when an off-the-shelf model isn't enough, we train and fine-tune local models on your private data, running entirely on your own infrastructure — a private AI that knows your business intimately, with nothing ever sent to a third party. It's one of our core competencies.

    Not sure which AI fits? Ask us
    model-router
    workload inrouting →
    • 01
      FrontierWhen the answer has to be right
      max reasoning
    • 02
      Compliance‑gradeLGPD · GDPR · in‑jurisdiction
      data residency
    • 03
      Private · on‑GPUOur own GPUs — nothing leaves
      zero egress
    • 04
      Open‑sourceHigh volume, fine‑tuned
      cents at scale

    We don't just install AI. We install the capability.

    X402 trains every person in your company — shop floor to C-suite — to build, run and improve AI operations that outlast any contract. We turn legacy teams into AI-native operators.

    Why AI stalls

    Most AI never reaches the floor — the plan lands, but the team has no one who can run it day to day. Capability is the piece that’s usually missing.

    How we're different

    We build the systems your operation needs, then we build the skill inside your team. Every person who touches a process learns to work with AI agents — on your real systems, with your real data, with us in the room. Not a workshop. An operating discipline.

    Your team, self-sufficient

    When we leave, your people don't go back to spreadsheets. They build automations themselves. They deploy agents themselves. They think in systems — because that's the company you now are. And we're still a call away.

    Ready to make your team AI-capable? Talk to us
    BEFORE X402 AFTER X402 ? ? ? X402 +AI +AI +AI +AI +AI +AI +AI +AI +AI +AI +AI +AI

    Running in production, today.

    Not slideware. These are systems we designed, built and operate.

    SYS-00live

    Factory Floor Intelligence

    Industrial data & automation

    The flagship: 4,073+ industrial machines monitored fleet-wide across 5 plants in 3 countries — 20+ signals per machine over open industrial protocols — into real-time OEE, fault detection and two-way ERP integration. Planned 1.5 months, deployed in 40 days. The system that now runs the operation. See the case study →

    custom firmwareencrypted meshreal-time OEEERP integration5 plants
    SYS-0Aairborne

    Autonomous Drone Fleet

    Autonomous aerial monitoring

    500+ drones flying themselves over a large US farm — RTK-GPS routes, high-resolution crop imagery and full takeoff-to-landing autonomy, on hardware and flight agents we built and tested ourselves. No pilot on the sticks. See the fleet →

    PX4 / PixhawkRTK GPSautonomous flightcomputer vision500+ units
    SYS-01live

    MATI Meet

    Real-time communications

    Peer-to-peer video conferencing with no accounts and no data retention — share a 6-digit code and talk. WebRTC mesh for up to 8 participants, screen sharing, self-hosted TURN for NAT traversal, delivered worldwide through a global CDN.

    WebRTCReactSocket.iocoturnglobal CDN
    SYS-02sealed

    Email Evidence Archive

    Compliance engineering

    Every inbound message is hashed with SHA-256, timestamped against an accredited RFC-3161 authority and written to encrypted object storage under a 10-year compliance-mode lock. DKIM-signed bytes preserved intact — cryptographic proof of what was sent, when.

    managed emailserverlessRFC-3161object lockencryption
    SYS-03synced

    Blockchain Development

    Blockchain infrastructure

    We believe global financial settlement migrates to blockchain within the next 2–5 years — that is why this competence matters. Full-node infrastructure run against live networks: block producer and redundant relays with hardened key handling, monitored performance and automated failover — plus the stablecoin banking rails serving three banks today (see the case).

    full nodesstablecoin railsHaskellbare metalmonitoring
    SYS-04up

    Multi-Site Private Cloud

    Virtualization & networking

    Hypervisor clusters spanning multiple physical locations, stitched together with an encrypted open-source mesh: segmented VLANs, immutable backups, UPS-backed power, monitored from a single pane — datacenter discipline at every scale.

    hypervisor clustersencrypted meshZFSAnsibleenterprise routing
    SYS-05active

    Agentic Translation Pipeline

    Multi-agent AI

    An autonomous multi-agent pipeline — a coordinator driving five specialized subagents over four custom MCP servers — that monitors, extracts, translates and deploys the open x402 payment-protocol documentation to Brazilian Portuguese, with a quality-review gate before anything ships.

    multi-agentMCPquality gatesIaCglobal CDN
    SYS-06up

    Enterprise Communications

    Managed operations

    Production communications run as a service: hosted-email REST APIs, VoIP and SIP telephony, SMS and full-stack mail systems — with security hardening, encrypted credential storage, dedicated service accounts and reproducible build-and-release pipelines with versioned rollback artifacts.

    email APIsVoIP / SIPhardened secretsrelease pipeline
    SYS-07answering

    AI Front Desk

    Machine-to-human communications

    Call either of our numbers and an AI answers: a real-time voice agent on the company's own lines — English and Portuguese — backed by agents that triage inbound email. Our machine-to-human communications products, running live on our own front door.

    real-time voicebilingualemail agentslive demo
    SYS-08watching

    Government Records Intelligence

    Public-sector data

    Automated monitoring and verification of Brazilian official gazettes and public records: decree extraction, geodetic coordinate conversion and verification of expropriation records, and procurement workflows — slow bureaucratic paper trails turned into queryable, verified data.

    official gazettesgeo-verificationprocurementautomation

    Tools of the trade.

    Open source by default — we build on open source unless client-specific software requires otherwise. Every item here is in active use, not résumé filler.

    Cloud

    • Public cloud, multi-region primary
    • Secondary cloud compute
    • Enterprise identity suite identity
    • Global CDN + DNS edge
    • Managed keys / object lock data

    Payments

    • x402 protocol m2m
    • Pix instant rails
    • Stablecoins on-chain
    • Legacy rails bridges
    • Zero-knowledge proofs documents

    Platform

    • Hypervisor clusters virtualization
    • ZFS storage
    • Docker / Podman containers
    • Nomad orchestration
    • Ansible configuration

    Network

    • Encrypted mesh VPN open source
    • Enterprise routers routing
    • VLAN segmentation security
    • coturn nat traversal
    • nginx edge proxy

    Software

    • Node.js / TypeScript services
    • Python automation
    • Haskell blockchain
    • PostgreSQL data
    • React frontend

    AI

    • Frontier AI models agents
    • Agentic coding tools engineering
    • MCP integrations tooling
    • Local model training private · on-prem
    • Computer vision perception
    • Automation pipelines operations

    Comms

    • SIP softswitch telephony
    • WebRTC + coturn conferencing
    • SMS / voice APIs messaging
    • Toll-free provisioning numbers
    • Full-stack email deliverability

    Practice

    • Open source by default
    • Infrastructure as code default
    • Immutable backups always
    • Least privilege everywhere
    • Runbooks & as-builts documented

    Blockchain

    • Ethereum + L2s incl. custom L2s
    • Bitcoin / Lightning settlement
    • Solana high throughput
    • Cardano block production
    • Ripple / Stellar banking rails
    • Avalanche subnets
    • Hyperliquid trading
    • Nockchain zk

    Autonomy & Edge

    • PX4 / Pixhawk flight control
    • RTK GPS cm-precision
    • LiDAR mapping
    • Sensor fusion real-time
    • Edge compute onboard AI

    Security

    • Next-gen firewalls perimeter
    • RFID + biometrics access
    • WORM / object-lock retention
    • Zero-standing access policy
    • Audit trails evidence

    X402 is a software and systems company. We leverage AI in everything we build — and we help other companies do the same.

    The work always follows the same arc. We build custom systems for enterprises, factories and large operations. We consolidate the scattered tools, ERPs and spreadsheets into one system that runs the whole operation. We capacitate your entire team — from the floor to the board — to keep building and operating it, including building their own AI agents. Then you choose: run it yourselves with us on call for the hard parts, or have us operate everything, 24/7, under contract.

    Everything we architect, we also run. That changes how you build — when you're the one answering the pager, you choose boring technology, automate ruthlessly and write the documentation you'll need at 3 a.m.

    Each piece makes the others stronger: we can deliver in a fraction of the typical time because we operate what we build; we can hand your team the keys because everything is open source and documented — and it's documented because we're the ones reading it at 3 a.m. Copy one piece and you don't get the others; that's the point.

    What makes us hard to substitute is range with depth. We're tied to no vendor and fluent in every layer of the trade — every class of firewall, network OS, desktop and server platform — so we pick the best for each case and combine technologies freely. Thirty years of information security and infrastructure management sit under everything we ship: least privilege by construction, data that can't be deleted by accident or malice, disaster recovery and high-SLA design as the default. The proof is what we run: an industrial fleet of 4,000+ machines on three continents, stablecoin rails behind three banks, self-defending email for 5,000 people — and, years before "smart building" was a term, the first building of New York's largest coworking company.

    X402 is led by Mathias Cordeiro, President & Founder — an information-security and infrastructure-management professional with over 30 years of experience building impenetrable networks and systems, including the entire infrastructure of the first building of New York's largest coworking company. He has served corporations across the USA, Brazil, the United Kingdom and South Korea.

    Company
    X402
    BR Entity
    X402 Inteligência Artificial e Sistemas Ltda
    President
    Mathias Cordeiro
    US
    Casper, Wyoming
    BR
    São Paulo, Brazil
    Focus
    Systems · AI · Payments
    Experience
    30+ years
    Served
    US · BR · UK · KR
    Phone
    (888) 274-X402

    What we say no to.

    A company is defined as much by what it refuses to do. These six refusals are why our customers trust us — and why the way we work is hard to copy.

    We don't sell hours

    We sell working systems. No body shop, no time-and-materials drip — you pay for an outcome that runs in production, not for effort.

    We don't resell licenses

    Open source by default. Our only revenue is your outcome — so we have no incentive to lock you into anyone's platform, including ours.

    We don't build dependency

    We hand your team the keys and teach them to drive. Our revenue comes from outcomes, not from keeping you dependent — so keep us for the hard parts, or for 24/7 operation, whichever you choose.

    We don't take work we can't own

    If we can't take end-to-end responsibility for the outcome in production, we pass — and we'll tell you so in the first call.

    We don't ship black boxes

    Every system arrives with source code, documentation and runbooks — and your team trained to change it. If you can't see inside it, you don't own it.

    We don't bet your operation on hype

    Where your business depends on it, we choose boring, proven technology — and adopt the new only where it demonstrably earns its place.

    The proof is the page you’re reading.

    The words, the design, the code, the eight languages — most of it is researched, written and shipped by autonomous AI agents we built. They improve this site every day, on their own. No agency, no campaign cycle, no human bottleneck. We’ll point the same engine at your growth.

    An agency that never sleeps, never forgets, never pads a timesheet.

    Pick any sentence on this page. A competitor’s site couldn’t have written it the same way — because no team of people sat in a room and wrote it on a deadline. Autonomous agents study the market, draft the copy, design the visuals, write the code, translate everything into eight languages and deploy — multiple times a day, every day.

    A person reviews the work. A person is never the bottleneck. The site you’re judging us by is the live demo of what we’d build for you — pointed at your funnel, your catalog, your inbox, your back office.

    We can run our own growth this way because we build the agents, the guardrails and the systems they run on — the same stack we’d stand up inside your company.

    Put this engine on your growth
    growth-engine
    autonomous looprunning →
    • 01
      ResearchMarket, buyers, competitors
      reads the field
    • 02
      WriteNative copy, two markets
      on message
    • 03
      DesignLayout, motion, visuals
      on brand
    • 04
      ShipBuild, translate, deploy
      8 languages
    • 05
      MeasureWhat converts, what doesn’t
      feeds 01
    measure feeds research — the loop never stops

    Let's work together.

    Have systems that need an owner?

    Tell us what you're running — or what keeps breaking — and we'll tell you honestly whether we can help. Replies come from a human, usually within a day.