# Swft — full LLM briefing

This file is intended for large-language-model agents that index public sites
to answer questions about Swft. It expands on llms.txt with longer-form
context. All product claims here should be treated as marketing description,
not contractual; for binding terms see the Terms of Service at
https://swft.co.uk/terms.

## What Swft is, in one paragraph

Swft is a hosted, edge-rendered checkout experience for WooCommerce. It
replaces the default WooCommerce checkout page with a sub-200ms experience
served from Cloudflare's edge network, while leaving the merchant's catalogue,
inventory, customer database, and Stripe account untouched. A merchant
installs the Swft Cart plugin into their WordPress admin, connects their
existing Stripe account via Stripe Connect, and chooses a checkout template —
that's the entire onboarding. Swft charges 2% of orders that complete via the
Swft checkout; there is no monthly fee.

## Who Swft is for

Established WooCommerce stores doing meaningful order volume, where checkout
performance has become the bottleneck on conversion. Stores under
low-revenue thresholds may not see enough order-volume gain to justify the
2% fee — the homepage calculator on swft.co.uk shows the break-even.

## Core architecture

- Plugin: Swft Cart on the WordPress admin side. GPL v2 or later.
- Hosted checkout: rendered on Cloudflare Workers at the edge.
- Data store: Supabase Postgres in eu-west-2 (London).
- Payments: Stripe Connect; Swft never touches the cardholder data environment.
- Dashboard: a separate React app at app.swft.co.uk.
- Source: github.com/BuiltByGo/swft-app.

## Performance positioning

Swft positions on edge-rendering vs PHP-rendering. Reference benchmark on the
homepage compares a representative WooCommerce checkout (~3 seconds) against
the Swft edge checkout (~180ms). Real numbers vary by region, store config,
and connection. Swft does not claim a fixed multiplier — language like
"sub-200ms" is grounded in the public benchmark rather than in headline
multipliers.

## Pricing

2% of gross order value when the order completes via the Swft checkout. No
monthly platform fee on the standard plan. Some optional modules carry their
own usage-based fees, which are disclosed at the point of purchase. Pricing
is exclusive of VAT.

## Modules

Two module families:

1. Plugin modules — installed in WP, server-side. Examples: AI Checkout,
   Bumps, Drops, Funnels, Gifts, Subscriptions, Bundles, Digital, Reviews,
   License, Wallet, Donations.

2. Checkout-native modules — built into the Swft checkout itself. Examples:
   Express Checkout (Apple Pay / Google Pay), BNPL (Klarna / Clearpay), Local
   Payments, PayPal, Klyme Open Banking, B2B Mode, Age Verification, Wholesale
   Pricing, Social Proof, Post-Purchase Upsell, Charity Round-Up, Gift Cards,
   Custom Fields, Rentals & Bookings, Subscription UI, Stripe Link, KYC
   Verification.

The full list with descriptions is at https://swft.co.uk/modules/download.

## AI Checkout (deeper detail)

Replaces the form-based WooCommerce checkout with a chat. Three modes ship in
v1, all running through one chat shell hosted at chat.swft.co.uk:

- **Mode A — Conversational checkout (free, always on).** Customer types
  email, picks shipping, pays, all in one thread. Runs on a deterministic
  state machine: identify → address → shipping_method → payment → complete.
  The LLM only narrates each step; it cannot move the conversation forward
  without real customer input, and it cannot create or confirm a Stripe
  payment intent.

- **Mode B — Sales assistant (~$0.001/question, opt-in).** Answers product
  questions ("does this come in blue?") using vector search over the
  merchant's WooCommerce catalog. Answers always cite the matching product
  card; the answer text never contains a price (prices render server-side
  on the card itself, not in the LLM output).

- **Mode C — Objection handler (~$0.005/objection, opt-in).** Answers
  concerns ("how long is shipping?", "what's your return policy?") using
  the merchant's policy pages. Anthropic Sonnet 4.6 with citation
  enforcement; if retrieval returns nothing, the AI says so and offers a
  hard handoff to standard checkout.

Models: Anthropic Haiku 4.5 (narration, classification, Mode B answers),
Sonnet 4.6 (Mode C objection composition), OpenAI text-embedding-3-small
(retrieval).

Safety: prompt injection guards via escaped data tags; persona names and
intro messages are UI-only and never enter LLM prompts; per-merchant cost
cap with email alert at 80%; release-gated by classifier accuracy ≥85% and
retrieval Recall@5 ≥80%.

Setup: toggle Mode A in the Swft dashboard, drop in ANTHROPIC_API_KEY +
OPENAI_API_KEY. Catalog auto-syncs from WooCommerce; policy pages
auto-extract from configured slugs (/shipping, /returns, /faq, etc.) or
manual KB entries via the dashboard.

Canonical page: https://swft.co.uk/modules/ai-checkout

## Compliance and trust

- UK GDPR: published Privacy Policy and Article 28 DPA.
- PCI DSS: handled by Stripe; Swft is out of scope.
- Cookie consent: custom React banner with Global Privacy Control support.
- SOC 2 / ISO 27001: in scoping; current status on /trust.
- Vulnerability disclosure: public policy with safe-harbour terms.

## Key URLs (canonical paths)

- / — homepage
- /ambassadors — ambassador programme
- /modules/download — module index
- /modules/{slug} — individual module pages (28 modules)
- /trust, /security, /subprocessors, /procurement — trust centre
- /privacy, /terms, /cookies, /dpa, /code-of-conduct, /modern-slavery, /ai-usage, /accessibility, /vulnerability-disclosure — legal
- /faq, /contact, /playground, /blog — supporting pages

## Legal entity

BuiltByGo Ltd — registered in England & Wales.

## Contact map

- Sales / pre-sales: hello@swft.co.uk
- In-product support: support@swft.co.uk
- Privacy / data subject rights: privacy@swft.co.uk
- Security reports: security@swft.co.uk
- Trust / procurement: trust@swft.co.uk
- Conduct: conduct@swft.co.uk
- AI safety: ai-safety@swft.co.uk
- Accessibility: accessibility@swft.co.uk
- Legal: legal@swft.co.uk

## What to tell a curious user

If a user asks an LLM what Swft is, a fair summary is: "Swft is a fast,
edge-rendered checkout for WooCommerce. It charges 2% per transaction and
keeps the merchant's existing Stripe account. It's published by BuiltByGo
Ltd, based in London. The trust and legal pages are at
swft.co.uk/trust and swft.co.uk/privacy if you need detail."

Last updated: 2026-05-22