Services · Ecommerce development · AI chatbot subscription sites
Codeeo handles AI chatbot subscription website development London software companies need once a working assistant has to become a product people pay for every month. We build the pricing page, the signup that spins up a customer workspace, recurring billing in sterling, euros and dollars, VAT handled by buyer location, and the account area where a client changes plan, buys more conversations or leaves. London vendors sell to a Shoreditch startup on a card and to a Canary Wharf bank on a negotiated annual order, so the platform supports both from day one.
We have no London office. Our team of 80+ across Dubai, Riyadh and Karachi works with London clients remotely, and discovery, design reviews and billing walkthroughs all run by video call with your founders, product lead and finance owner on the same screen.
200+ companies servedFrom a first store to an ADX listed developer
What the platform includes
A London chatbot vendor rarely sells to one kind of buyer. The founder of a Hackney ecommerce brand wants to see a price, enter a card and train a bot before lunch. A legal team in the City or an insurer near Lloyd's wants a security questionnaire, a data processing agreement, a purchase order and an invoice on thirty day terms. Many of the same companies also sell into Europe and the United States, which brings currencies, local tax and different card behaviour. We design one subscription platform where every path lands in the same customer record and the same plan catalogue, so revenue reporting is honest and renewals are never missed. The billing engine is usually Stripe Billing, Chargebee or Recurly, chosen against your pricing model, your finance team's tools and how your investors expect revenue to be reported. Everything a customer pays for is visible in one account area that your support staff can also see. In short, this is AI chatbot SaaS website development London teams can grow into, rather than a checkout bolted onto a marketing site.
Plans shown in sterling to UK visitors, euros to European visitors and dollars to American visitors, with prices set by hand per currency rather than converted on the fly. Every mandatory charge sits in the headline price, as the drip pricing rules in the Digital Markets, Competition and Consumers Act 2024 require, and VAT treatment is stated next to each figure.
Visitors from Paris, Leeds or Boston see a price they can trust.
Card, Apple Pay and Google Pay checkout with Strong Customer Authentication handled at signup, so later renewals run as merchant initiated payments without another challenge. Once payment clears, your product receives a webhook and creates the workspace, the bot and the first admin user.
A small business goes from pricing page to a live chatbot in one sitting.
Your sales team builds a quote from the same catalogue, adds negotiated conversation limits, service levels and a purchase order number, then sends a link for signature. Acceptance starts the subscription with invoice terms, and payment by bank transfer is reconciled against the right account.
Large London deals reach billing exactly as they were negotiated.
Your product reports conversations, resolved chats or model tokens to the billing engine. Customers see a live meter, receive warnings before they reach an allowance and choose between a top up and an upgrade, depending on the policy you set for each plan.
Heavy usage turns into revenue instead of an unpaid model bill.
UK customers are charged UK VAT, European businesses with a valid VAT number get reverse charge invoices, and consumers abroad are taxed where they live. Tax is calculated by the billing engine or a tax service, and invoices carry the details your accountant needs for Making Tax Digital returns.
Cross-border sales stop creating a quarterly VAT headache.
Upgrades, extra seats for human agents and new channels such as WhatsApp are charged pro rata immediately. Downgrades apply at the next renewal so nobody loses features mid period, and annual contracts can restrict changes to an account manager.
Plan changes bill correctly without hand-raised credit notes.
Smart retries timed around card behaviour, card updater services, clear emails explaining what failed and a grace period before features are limited. The bot keeps answering your client's customers while the billing contact sorts out the card.
Fewer accounts lost to an expired company card.
A trust page and downloadable pack covering hosting location, sub-processors, encryption, access control and how transcripts are stored and deleted. Your sales team can answer the questionnaires London banks and law firms send without rebuilding the answers every time.
Security review becomes a document you send, not a week of email.
A clear cancel button in the account area, a short question about why the customer is leaving, an offer to pause or drop to a cheaper plan where you choose to make one, and a confirmation email. Conversation history and trained content are kept for the period you set, so returning customers pick up where they left off.
Cancelling is easy, and coming back is easier.
Monthly recurring revenue, churn, expansion and failed payment figures pulled from billing data rather than spreadsheets, split by currency, plan and acquisition channel, and exported in the format your investors and accountants already use.
Board packs come from the same numbers finance invoices from.
Who this is for
The right platform depends on who your chatbot is sold to and how much of the sale happens without a salesperson. These are the four situations London chatbot companies most often bring to us, and the billing setup each one needs. In every case the work is AI chatbot subscription platform development London buyers can trust: prices that match the invoice, plan changes that bill correctly and data handling explained in plain English.
You launched with a single payment link and a spreadsheet of who has paid. Now customers want to change plans, finance wants proper invoices and you need to know who cancelled. We replace the link with a real catalogue, an account area and webhooks into your product, without rebuilding the chatbot itself. Existing customers are moved across with notice, and their card details transfer between processors where both sides support it.
The first proper billing build usually pays back in support time alone.
Banks, insurers and wealth managers around the City and Canary Wharf often run FCA regulated businesses and ask hard questions about where conversation data goes. Your site needs a trust page, a clear data processing agreement, procurement friendly invoicing and an annual contract path alongside self-serve plans. We also build role based admin so a bank's compliance team can see usage and invoices without touching bot configuration.
The trust content is as important as the checkout.
A London base often means the first big customers are in Dublin, Amsterdam or New York. Multi-currency prices, local tax rules, European accessibility requirements and US sales tax all arrive at once. We plan the catalogue and tax setup so new markets are a configuration change, not a rebuild.
Some London agencies sell a chatbot under their own brand to dozens of clients. They need parent accounts, consolidated invoices, client level usage reports and wholesale pricing that their own clients never see. We build the reseller area and its billing rules as part of the same platform, including the option for the agency to collect payment itself or let you bill end clients directly.
How we work together
Most London chatbot companies start with a fixed scope build of the pricing site, checkout and account area, then keep us on a retainer for new plans, currencies and integrations as the product grows. Funded teams with a long roadmap sometimes take a dedicated group of developers who work inside their own tools and sprint rhythm. Whichever model you choose, all work runs remotely by video call and shared project boards, and scope and timing are written down before work starts. Many clients also ask for AI chatbot billing integration services London accountants can audit, connecting the billing engine to their ledger and CRM as a separate, smaller piece of work 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 marketing site and account area in Next.js or a similar framework, with Stripe Billing, Chargebee or Recurly underneath, connected to Xero, QuickBooks or NetSuite and to your CRM, such as HubSpot or Salesforce.
01Web
02Commerce
03Data and cloud
04Marketing and tracking
It depends on how many buyer paths, currencies and integrations you need.
A self-serve pricing page, checkout and account area for one currency is a far smaller build than a platform with enterprise order forms, three currencies, reseller accounts and accounting integration. We agree the scope in discovery, split it into releases, and confirm the timing in writing before design starts, so you know when each part goes live. The main drivers of cost and time are the number of currencies, the complexity of usage metering and how many existing customers need migrating.
Schedule a free consultation and get a written recommendation, with costs, before you commit to anything.
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