Crypto & Web3 strategy, custom product and AI automation. 48 projects in production and one non-negotiable principle: the code is yours.
Treasury, tokenization and smart contracts with technical and business judgment: security, compliance and documented decisions. No profit promises — architecture and strategy that hold up.
Talk to an advisorReal-time monitoring of wallets and positions for a crypto fund: −70% reporting time and 12,000 operations processed per day.
See the full caseWeb and mobile built for your exact use case. Product, design and engineering in one team, releases every 1–2 weeks, and repository, docs and IP in your name from the first commit.
See app casesWhat we build for clients, packaged for you — try them today.
Bank-grade USDT gateway: QR checkout, on-chain confirmation and treasury sweeps. 0.99% + gas per transaction.
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Our AI CRM captures leads, summarizes conversations and suggests the next step. Free up to 3 leads.
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In-app chat plus an AI bot covering WhatsApp, Telegram and email from a single inbox. Plans from $0.
Explore support →AI flows and agents connected to your tools: invoices, support, reporting, back-office. On the latest project: 160 hours a month recovered and zero manual errors.
See what you could automate1–2 week sprints, a demo with every release and fixed pricing per phase. You know what we’re building, why, and what it costs — before you approve it.
See the process
01 We understand your business, your numbers and the real bottleneck.
02 Solution and roadmap prioritized by impact, with per-phase pricing.
03 Short sprints with demos you can try and validate.
04 We measure, optimize and stay with you — or hand everything over, documented.
We don’t sell hours: we design solutions that move metrics and stay until they work in production. From strategy to deploy.
Book a callAgents that process invoices, support and back-office, connected to your tools.
Automate your businessAgent engineering consulting: we set up your development harness — a step-by-step pipeline with gates, each agent in its own context window, and loops that iterate until verification passes. The same one we use every day.
Set up your harnessThey understood our business before writing a single line of code. The app they delivered scaled without us touching it.
Their crypto advisory saved us expensive mistakes. They talk business and technology with the same fluency.
They automated the processes that ate our day. We got back over 150 hours a month.
We reply within 24 hours with an action plan and an honest estimate: what we’d do, how long it takes, and what it costs.
Book a call23dn’s crypto advisory is strategic and technical: treasury, tokenization, smart contracts, security and compliance. We don’t provide speculative financial advice; we help you make informed, safe decisions.
The code we build is yours: we deliver the full repository, the documentation and the intellectual property — no hidden dependencies, no lock-in.