Services · Ecommerce development · Banking AI agent subscription sites
Banking AI agent subscription website development London vendors can put in front of a bank's procurement and risk teams: we build the platform where your agent product is explained, priced, contracted and billed on a recurring basis. Plan pages, company sign up, enterprise quotes that become live subscriptions, usage metering for agent tasks, invoices with the right VAT treatment and a self serve account area all run from one system your finance team controls.
Your buyers sit in the City, at Canary Wharf and in the offices of overseas groups with UK branches. They read every page before a call and send a long questionnaire after it. The site should answer most of those questions in advance and then bill without a spreadsheet in the middle.
200+ companies servedFrom a first store to an ADX listed developer
What the platform includes
A tier one bank in London almost never subscribes with a company card. Someone in a transformation or operations team finds you, a pilot runs under a limited agreement, the third party risk team asks for evidence, and accounts payable wants a purchase order that matches the invoice line for line. Meanwhile a challenger bank or payments start up in Shoreditch may want to sign up online and start the same day. Your platform has to serve both kinds of buyer from one set of plan definitions. We design the commercial model first: what you charge for, whether that is agents, seats, resolved conversations or processed cases, and how commitments and overages work. Every page, quote, invoice and account screen follows from that model. Then we build the public site, the buyer portal and the billing connections in the order your sales team needs them, so the next enterprise deal is issued from the platform rather than from a folder of documents.
Each plan states what is included: number of agents, staff seats, task or conversation volume, data residency, support response and the controls available. Enterprise tiers can show a request for pricing instead of a figure. The same definitions drive the billing engine, so a procurement analyst comparing your page with your invoice finds no gap between them.
Fewer calls spent explaining what a plan contains.
Sales builds a quote in the platform with agreed term, committed volume, ramp periods and custom limits. Once the bank signs, the quote becomes an active subscription with the correct start date, billing frequency and entity details. Nobody retypes contract terms into a separate billing tool, which is where most London vendors find their invoicing errors.
Signed contracts start billing exactly as negotiated.
Your agent platform sends usage events, such as cases prepared or conversations handled, to a metering service. The portal shows customers their consumption against commitment in near real time, and overage is calculated from the same records, so a bank's finance team can check a bill against its own logs.
Usage invoices that a customer can reconcile.
A gated area where approved prospects download your security documentation, data flow diagrams, subprocessor list, penetration test summaries and policy answers after signing an NDA online. Access is logged, so sales can see which bank's risk team is reading what, and documents expire when they are replaced.
Due diligence questionnaires move faster with less back and forth.
Many London buyers contract through a UK entity but pay from a parent in Europe, the US or Asia. The platform supports several billing entities, sterling, euro and dollar price books, and VAT handling that applies UK VAT to UK customers and the reverse charge treatment where it legitimately applies to overseas business buyers.
Correct invoices for groups with complicated structures.
Account owners add seats, enable another agent or move up a tier from the portal. Proration is calculated by the billing engine and shown before confirmation. Larger accounts can be set so changes create a request for approval rather than an immediate charge, which suits banks with strict spending controls.
Expansion revenue without a sales call for every change.
Smaller buyers pay by card with Strong Customer Authentication on the first payment, after which renewals run as merchant initiated transactions. Others pay by Bacs Direct Debit or by bank transfer against an invoice with purchase order references. Failed payments trigger a dunning sequence you control, with grace periods set per plan.
Fewer lapsed accounts and no surprise suspensions.
Banks separate the people who use your product from those who approve spending. The portal gives administrators, finance contacts and read only auditors different permissions, single sign on through the customer's identity provider, and a downloadable history of invoices, credit notes and contract documents.
Each person at the customer sees only what they should.
Subscriptions, renewals and usage flow to your CRM so account managers see renewal dates and consumption trends, and to your accounting system so revenue is recognised correctly. We map every field before building, so the CRM, the billing engine and the ledger agree.
One version of each customer across sales and finance.
Who this is for
London has the densest concentration of bank buyers in the UK, and also the most demanding. The vendors who come to us are usually stuck between a sales process that works and a billing process that does not. These are the situations we see most often, and how the platform is shaped differently for each one.
You have a pilot with one institution and a pipeline of others, but every invoice is drafted by hand. We set up a small number of clear plans, a quote flow for negotiated deals and a billing engine that issues correct invoices from the first enterprise customer onward. The site explains your product to risk teams in plain language, which matters more in London than clever animation.
Get the billing model right before adding more plans.
Your enterprise motion works, but smaller payment firms and lenders want to sign up online. Banking AI agent SaaS website development London teams often underestimate this part, because those buyers expect a checkout rather than a call. We add a public sign up path with card or Direct Debit, a usage capped starter plan and an upgrade route into your sales led tiers, all on the same customer record so nothing is lost when an account grows.
You already sell AI agents to banks elsewhere and need a UK presence that reads as local. We build a UK version of the site in British English with sterling pricing, UK VAT treatment, UK GDPR wording and a trust centre that addresses the questions a UK bank's outsourcing team will raise.
Usage, commitments and custom terms are tracked in a spreadsheet that one person understands. We migrate active contracts into a proper billing engine, reconcile the opening balances with your finance team, and switch invoicing over at a renewal date so no customer receives a confusing bill.
Migration is planned around renewal dates, not a single cut over.
How we work with London clients
Codeeo has no office in London. Our team of 80+ works from Dubai, Riyadh and Karachi and runs discovery, design reviews and testing with London clients by video call, with shared documents recording every decision. We have delivered 200+ projects across the UAE and the US and are rated 4.7 from 23 Google reviews. Each stage ends with something your team can inspect: a written plan model, a design file, a working build, approved test invoices. Banking AI agent subscription platform development London buyers will scrutinise needs that discipline, because their auditors will ask how your billing works long after launch.
A defined build with a deadline
We agree what the product has to do, write it down with a price and a date, and build exactly that. Changes are priced before they are made, not discovered on the invoice.
A product that keeps evolving
Named engineers who work your hours, join your standups and stay on the codebase. You direct the backlog; we own the quality of what ships.
Something live that needs looking after
A monthly block of hours for improvements, fixes and the small requests that otherwise wait months. Unused hours carry for a quarter.
Technology
We usually build the public site in Next.js for speed and search visibility, with the portal on the same codebase. Billing runs on an established engine chosen for your model, payments through a UK regulated provider, and data in UK or EU hosting regions so your data map stays simple.
01Web
02Commerce
03Data and cloud
04Marketing and tracking
It depends mainly on how many ways you bill.
A site with a handful of fixed plans and card payments is a much smaller project than one with negotiated contracts, usage meters, several billing entities and migrated customers. We set the timeline after the commercial model is mapped, once the billing engine and the number of live contracts to move are known. Milestones are written down before design starts, and time for finance to approve test invoices is part of the plan rather than squeezed into the final week.
Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.
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