Where business meets engineering
Complex technology, made ready for real business
We design and build AI agents, payment infrastructure, and blockchain systems—from the first critical decision through secure production operation.
What we build
Technology that completes real work
We turn technically difficult ideas into systems people can use, teams can operate, and leaders can trust.
AI Agents & LLM Systems
AI that can find company knowledge, use business tools, and complete real work—safely and under human control.
Explore production AI agents- What we build
- An agent connected to the right data and tools, designed around a specific business workflow.
Wallet & Payment Infrastructure
Wallet and payment experiences that feel familiar to users while handling complex blockchain infrastructure behind the scenes.
Explore wallet and payment systems- What we build
- Passkey wallets, gasless transactions, account abstraction, and crypto payment flows tailored to the product.
Architecture and leadership around the build
- 01
Blockchain Architecture
Architecture, protocol selection, system integration, and production risk.
- 02
Fractional CTO Services
Technical strategy, architecture review, team design, and vendor selection.
- 03
Smart Contract Engineering
Solidity contracts, testing, system integration, and security review.
- 04
Cross-Border Engineering Setup
Hiring, delivery processes, and cross-border teams between Japan and Europe.
Technical use cases
Production AI and blockchain systems
Representative systems designed for security, reliability, and production operation.
Example 01
Production AI agent platform
- Current issue
- An LLM prototype works, but quality, permissions, and cost are not ready for production.
- What we build
- A tool-using agent with RAG, evaluations, execution logs, budget limits, and human approval.
Example 02
Passkey wallet and stablecoin payments
- Current issue
- Seed phrases, gas tokens, and fragmented payment operations create user friction.
- What we build
- Passkey wallets, smart accounts, gas sponsorship, stablecoin payments, ledger, and reconciliation.
Example 03
x402 APIs and agent payments
- Current issue
- Accounts, subscriptions, and API keys prevent agents from purchasing services programmatically.
- What we build
- x402-enabled HTTP or MCP services with agent wallets, spending limits, payment records, and settlement monitoring.
From uncertainty to production
How We Work
Three clear stages keep technical decisions and implementation aligned.
01
Define the Problem
Clarify the goal, constraints, risks, and what success should look like.
02
Design the Path
Choose the architecture, priorities, milestones, and delivery plan.
03
Build for Operation
Implement, test, launch, monitor, and prepare the system for your team.
AI & Blockchain Engineering
About Us
Ineeza is a technology company focused on production AI and blockchain systems. Registered in Tokyo, we operate from two bases: Tokyo and Amsterdam. We work directly with companies across Japan and Europe, connecting technical strategy, architecture, and hands-on implementation.
Operating Bases
Amsterdam / Netherlands
European engineering base
Tokyo / Japan
Head office · Engineering base
Engagement models
Pricing Guide
We first define the support required, then estimate based on responsibility, complexity, and delivery conditions.
- 01
Consulting / Architecture
For strategy sessions, technical due diligence, and architecture reviews.
USD 250-360 / hour
- 02
Blockchain / AI Development
For implementation, integration, testing, and production hardening.
USD 220-340 / hour
- 03
Fractional CTO
For recurring CTO leadership, roadmap ownership, and team management.
USD 20,000-42,000 / month
Start with the technical problem
Get In Touch
Share the problem, current system, constraints, and desired outcome. Your inquiry goes directly to experienced technical people.
What you can bring us
Early-stage questions are welcome
- Whether an AI or blockchain idea is technically feasible
- Architecture, security, or cost concerns in an existing plan
- A prototype that needs to become a production system
- Technical leadership or an independent design review