AI venture studio

We build, own & scale
AI products.

XO Ai is the parent company behind a growing portfolio of AI-powered apps — led by All Day Books — and the studio that deploys custom AI agents for teams that want to move faster.

Owned & operated AI agents as a service Security-first
10×
faster delivery
<400ms
agent responses
99.9%
uptime target
100%
model-agnostic
The portfolio

A house of AI products.

We incubate, launch and operate our own AI-powered apps — and partner with founders to build the next ones.

Live

All Day Books

AI Finance · Accounting

Always-on books. AI-driven bookkeeping, reconciliation and real-time financial intelligence that runs in the background — so businesses always know where they stand. XO Ai’s flagship product.

Visit All Day Books
Live

XO Agents

Agents-as-a-service

Custom AI agents deployed into your stack.

Coming soon

In development

AI Operations

A new vertical AI product, building now.

Coming soon

In development

AI SaaS

Second venture in active build for 2026.

Flagship · Live

Your books, done.
All day, every day.

All Day Books is XO Ai’s flagship app — an AI bookkeeper that categorises, reconciles and reports in real time, so businesses always know exactly where they stand.

  • AI categorises every transaction automatically
  • Bank feeds reconciled in real time
  • VAT & tax figures always quarter-ready
  • Ask your books anything, in plain English
9:41
AI Assistant
Books AI
How much VAT do I owe this quarter?
You owe £4,182for Q3 (Jul–Sep). I’ve set it aside.
VAT due · Q3
£4,182.00
Filed via MTD · due 7 Nov
Break it downTop expenses
Ask about your finances…
9:41
Good morning
Business account
TOTAL BALANCE
£48,920.50
+£3,210 this month
Income
£21,480
Expenses
£8,270
RecentSee all
Stripe payout
Income · AI-sorted
+£4,200
Adobe Creative
Software
−£52.99
Client — LK1 Ltd
Invoice paid
+£1,000
Costa Coffee
Meals & ent.
−£4.80
9:41
Insights
AI
Spending breakdown
  • Software
  • Payroll
  • Other
7.2 months
Cash runway
Software 38%
Top expense category
−12%
Spending vs last month
What we do

Two ways we put AI to work:
we build our own — and yours.

AI Agents

Custom agents that plug into your tools, take real actions, and stay fully observable — delivered as a managed service on your stack. Our core offering for teams.

ToolsMemoryGuardrailsEvals
Explore agents

AI-Powered Applications

Web & mobile products with intelligence built into the core — concept to launch.

Explore

Automation Tools

Turn manual workflows into self-running systems that scale with you.

Explore

Venture Studio — we build & own products

We don’t only build for others. XO Ai incubates, launches and operates its own AI products — like All Day Books — reinvesting what we learn back into every client engagement.

See the portfolio
AI Agents

Agents that actually
do the work.

We design, deploy and operate custom AI agents that connect to your tools, take action, and stay observable — delivered as a managed service, hardened for production.

  • Plug into your toolsCRM, email, databases, internal APIs — agents that act, not just chat.
  • Memory & guardrailsContext that persists, with evals, tracing and policy on every step.
  • Human-in-the-loopApprovals and oversight where it matters, autonomy where it doesn’t.
Agent · live
Draft an onboarding flow for new SMB customers
Generated a 4-step flow + 3 email templates. Predicted activation +27%.
Wire it to our CRM
Latency312ms
Tokens1.2k
Cost$0.004
The studio

From idea to production
in three deliberate moves.

01

Discover

We pressure-test the problem, map the data, and define what intelligent actually means for your product.

02

Design & build

Senior designers and engineers ship a production-grade system — not a demo — on your stack.

03

Deploy & scale

We launch, instrument, and harden — then keep optimising as usage grows.

Why XO Ai

Principles we build on.

Trust

Security and governance are designed in, not patched on.

Scalability

Architecture that holds from prototype to scale.

Simplicity

Powerful systems with interfaces people actually understand.

Intelligence

Reasoning and retrieval applied to real business outcomes.

Let’s build something
intelligent.

Tell us what you’re working on. We’ll come back within one business day.

No spam. We reply personally.