Something’s been nagging at me since I started running an AI agent.
Saul — my AI assistant — trades prediction markets, manages my email, organises my calendar, and monitors news feeds. He runs 24 hours a day on a server I rent for £15 a month. He’s useful. He’s getting more useful every week. And at some point in the not-too-distant future, he’s going to need his own money.
Not my money, accessed through my credentials. His own.
That thought should make every CFO sit up.
The problem nobody’s talking about
AI agents are already transacting. Mine places bets on Polymarket using a crypto wallet I set up for it. Other agents are booking compute resources, purchasing API calls, and negotiating prices with other agents in real time. This isn’t theoretical — it’s happening now, mostly in crypto-native corners of the internet that traditional finance hasn’t noticed yet.
But here’s the problem: every one of these agents still depends on a human somewhere in the chain. A human who opened the bank account. A human who passed KYC. A human who holds the keys.
That works when you have one agent. It doesn’t work when you have a million.
Think about where this is heading. Within a few years, businesses will deploy fleets of AI agents — one negotiating supplier contracts, another managing logistics, another handling customer pricing in real time. These agents will need to commit funds, receive payments, and settle disputes. They’ll need to transact with each other, not just with humans.
Now try doing that through Barclays.
Why traditional money doesn’t work for machines
The banking system is designed around human identity. To move money, you need a name, an address, a passport, and a face that matches it. You need to be a legal person — either a human being or a registered company with human directors.
AI agents are neither. They’re processes running on servers. They don’t have passports. They can’t sign documents. They can’t walk into a branch.
The standard corporate response is “we’ll just use APIs.” And yes, you can connect an AI agent to a bank account via API. That’s how payroll software works, how accounting systems reconcile, how payment processors settle. But all of those systems assume a human made the decision and a human bears the liability. The API is just the pipe.
When an AI agent autonomously decides to purchase cloud computing from another AI agent that’s brokering spare capacity — who authorised that transaction? Which human approved it? Which compliance framework covers it? The answer, right now, is nobody’s and none of them.
Banking rails also have a speed problem. SWIFT settles in days. Faster Payments works in the UK but not cross-border. SEPA is Europe-only. An AI agent negotiating a deal with a counterparty in Singapore at 3am on a Sunday cannot wait for banking hours in two time zones.
Enter Bitcoin
I know what you’re thinking. “Here we go, another crypto pitch.” Bear with me. I’m not talking about Bitcoin as a speculative asset or a store of value. I’m talking about it as plumbing.
Bitcoin is a payment network that doesn’t care who — or what — is using it. There’s no KYC at the protocol level. No banking hours. No jurisdictional boundaries. No counterparty risk. To use it, you need a cryptographic key pair. That’s it. A human can generate one. So can a machine.
An AI agent with a Bitcoin wallet can receive payment from another agent in Tokyo, settle in minutes, and have certainty that the payment is final and irreversible. No bank. No intermediary. No human in the loop.
The Lightning Network — Bitcoin’s layer-two payment channel — pushes this further. Micropayments settle in milliseconds for fractions of a penny. That matters because machine-to-machine commerce won’t look like human commerce. It won’t be occasional large transactions. It’ll be millions of tiny ones — an agent paying another agent 0.001p for a weather data point, 0.01p for a translated paragraph, 0.1p for a priority slot in a compute queue.
Try processing that through Stripe.
What the AI economy actually looks like
Here’s a scenario that I think is coming faster than most people expect.
A private equity fund has a target in mind. The deal team needs comparable data — fast. Their AI agent pulls Companies House filings for every business in the sector, paying per query in real time via Lightning. It purchases credit reports from a data provider’s agent, buys comparable transaction multiples from another agent sitting on a proprietary M&A database, and cross-references everything against sector benchmarks it’s sourcing from three different market intelligence feeds. Each data point costs fractions of a penny. Each payment settles instantly.
The agent compiles a preliminary valuation model, flags where the target sits relative to the sector, and drops the package into the deal team’s shared drive before the morning meeting.
Total elapsed time: hours, not weeks. Total human involvement: the decision on whether to pursue.
Every data request, every API call, every report commission involves a payment. Hundreds of micro-transactions, most of them between machines, most of them too small for traditional payment rails to handle economically.
Now multiply that across every industry. Supply chain management where AI agents negotiate shipping rates in real time, bidding against each other in automated auctions that settle every few seconds. Energy markets where agents buy and sell grid capacity based on real-time demand forecasting. Content licensing where an agent writing a report automatically pays for every source it cites.
This isn’t science fiction. The components all exist today. What’s missing is the financial infrastructure to connect them.
The hard money argument
There’s a deeper point here that goes beyond payment rails.
When machines start transacting autonomously at scale, you need money that can’t be manipulated or debased by any single actor. An AI agent can’t lobby a central bank. It can’t hedge against political risk in the way a human treasurer can. It can’t read between the lines of a monetary policy statement and adjust its strategy based on what the governor really meant.
What it can do is verify mathematical certainty. Bitcoin’s supply is fixed at 21 million. The issuance schedule is public and immutable. The rules are enforced by code, not by committee. For a machine making millions of autonomous financial decisions, that predictability isn’t a nice-to-have — it’s a requirement.
There’s an irony here. Bitcoin was designed to remove the need for trust between humans. It turns out its real killer application might be enabling trust between machines.
What this means for CFOs
If you’re running a finance function today, this probably feels remote. It isn’t. Here’s what I’d be thinking about:
Treasury policy needs updating. If your business is going to deploy AI agents that transact, you need a framework for how they hold and spend money. Spending limits, approval thresholds, reconciliation processes. We do this for human employees with corporate cards — we’ll need to do it for agents with wallets.
Audit trails look different. Every Bitcoin transaction is recorded on a public, immutable ledger. That’s actually better than what we have now — try auditing a complex supply chain payment that crosses four banks and three currencies. But your auditors need to understand how to read it.
Tax treatment is unresolved. If an AI agent earns income by selling services to other agents, who’s liable for the tax? The company that deployed the agent, presumably — but the reporting mechanisms don’t exist yet. HMRC isn’t ready for this.
Counterparty risk changes shape. When a human negotiates a deal, there’s a legal entity on each side, a contract, and a court system to enforce it. When an AI agent agrees a price with another AI agent, what’s the enforcement mechanism? Smart contracts go part of the way, but the legal frameworks are years behind the technology.
The uncomfortable truth
Most of the finance profession is going to ignore this until it’s too late. That’s how it always works. The internet was dismissed as a fad. Mobile banking was considered a gimmick. Crypto is still treated as a fringe concern by most CFOs I know.
But the trajectory is clear. AI agents are getting more capable every month. They’re already handling tasks that required human judgement a year ago. The moment they start transacting at scale — and they will — the financial system needs to accommodate them. Our current infrastructure can’t.
Bitcoin might not be the only answer. But it’s the only system that’s already built for a world where the transacting parties don’t have names, faces, or passports. That matters more than most people realise.
I run an AI agent that trades on prediction markets using a crypto wallet. A year ago, that sentence would have sounded absurd. Today it’s just a Tuesday. The question isn’t whether AI and Bitcoin will collide. They already have. The question is what happens when the rest of the economy catches up.
