Klyent: a bi-directional Wix–HubSpot sync that ends the copy-paste
Marketing agencies live in two systems that don't talk: client websites on Wix and the CRM in HubSpot. Klyent is an agency platform that syncs the two in both directions, uses an AI-assisted mapping layer to line up each client's Wix fields with HubSpot properties, and generates the weekly client reports the team used to assemble by hand — cutting manual data entry by 80% across 50+ client accounts.
- Type
- Agency platform · integration
- Stack
- TypeScript · Next.js · Wix · HubSpot · OpenAI
- Impact
- 80% less manual data entry
- Scale
- Automated weekly reporting for 50+ client accounts
The problem: payroll spent on copy-paste
Every form submission, contact update, and campaign result on a client's Wix site had to be re-entered into HubSpot — and every HubSpot change relevant to the site had to travel back. Multiply that by dozens of client accounts and an agency burns real payroll moving data between tabs, with every manual hop a chance for a stale record, a mistyped email, or a lead nobody follows up.
The obvious fix — a one-off integration per client — doesn't survive contact with an agency. Client sites don't share a schema. One collects “Company”, another “Business Name”, a third buries it in a free-text field. Hand-building a mapping per account is exactly the kind of work that never gets finished, so the platform had to make mapping cheap.
Webhooks, not polling — and what that costs you
Both platforms can tell you when a contact changes, so the sync is event-driven: a Wix contact created or updated fires a webhook, a HubSpot contact created or property changed fires one the other way, and the platform reacts within seconds instead of scanning every account on a timer. Polling would have been simpler to reason about and ruinously expensive against API rate limits across fifty-odd accounts.
Event-driven sync has a famous failure mode: the loop. You write a change to HubSpot, HubSpot tells you a contact changed, you write it back to Wix, Wix tells you a contact changed. The design breaks the loop by remembering, for a short window, which records it has just written itself, and skipping the echo when it arrives. A manual full sync — in either direction, or both — exists for onboarding a new account and for the day a webhook subscription silently lapses, because one always does.
Two systems, one truth: conflicts, idempotency, retries
When the same contact is edited on both sides before either change has propagated, something has to give. Klyent's rule is last-write-wins on timestamps — blunt, predictable, and explainable to an account manager in one sentence, which is worth more than a clever merge nobody can reason about. An external-ID mapping ties each Wix contact to its HubSpot counterpart, so the platform is never guessing identity from an email address.
Webhooks are delivered at-least-once, so every handler is idempotent: the mapped payload is hashed, and if the hash matches the last thing written for that contact the sync is skipped as a no-op. Retries with backoff cover the transient failures, and a sync log records every operation — source, target, outcome — so when a client asks why a field is wrong, the answer is a query, not a shrug.
AI-assisted field mapping, with a human on the confirm button
This is where the 80% came from. Instead of an engineer hand-mapping every field for every site, the platform pulls each client's Wix contact fields and the HubSpot portal's properties — fetched live, because agencies add custom properties constantly — and uses OpenAI to propose the mapping: which field feeds which property, in which direction, with which transform. A “biz_name” to “company”; lowercase the email; trim the phone.
The proposal is a proposal. It lands in a mapping table where an account manager confirms, edits, or deletes each row, sets per-field direction (Wix to HubSpot, HubSpot to Wix, or both), and toggles rows active; duplicate pairs are rejected. The model does the tedious guessing; a human does the deciding. That split is the difference between an AI feature that saves time and one that quietly corrupts a CRM.
Weekly reports nobody assembles
The recurring deliverable every agency owes every client is a weekly report, and before Klyent it was a Friday afternoon of exporting, pasting, and formatting. With both systems in sync, the platform generates those reports on a schedule for 50+ client accounts from data it already holds — the leads captured, where they came from, and what happened to them in the pipeline.
Attribution is part of it: lead-capture forms embedded on client sites carry UTM parameters (source, medium, campaign, term, content) and page context through to the contact record, so a report can say which campaign a lead came from rather than just that a lead arrived. Reporting is only as good as the data underneath, which is why sync correctness came first.
Build notes and honest limits
Next.js and TypeScript, one codebase serving three surfaces: the API layer (auth, sync, webhooks, forms, mapping), the agency dashboard (connection status, the mapping table, the sync log), and embeddable lead-capture forms. The design keeps credentials boring: HubSpot connects through OAuth with automatic token refresh, Wix through client credentials, tokens are encrypted at rest, and every webhook is verified before it is trusted. Logging redacts anything that looks like a secret.
The trade-offs I'd own: last-write-wins loses data when two people edit the same field in the same minute, and I chose that over a merge policy nobody would understand. The AI mapping proposes and never applies, which means onboarding still costs a human an hour per account — a cost I think is correct. And there is no public demo today: the original deployment is offline, and a platform wired into real client CRMs isn't something to leave behind a public URL anyway.