Turning a Prototype into a Revenue Funnel
Financial AdvisoryReplacing a single-file HTML prototype with a server-authoritative evaluation engine that serves internal advisors and public visitors from one backend, with Stripe payment built in.
Overview
A financial advisory business was running its lead-generation tool as a single-file HTML prototype, unmaintainable and duplicating scoring logic between a gated internal advisor tool and a public unauthenticated flow. Canvas Labs Partners rebuilt it as a server-authoritative platform with one evaluation engine serving both flows, turning the prototype into a production funnel with live payment conversion.
Zero duplicated logic
one evaluation engine serves both internal and public flows
Prototype to production
now a live funnel with payment conversion built in
Server-authoritative by design
zero business logic runs on the client
Challenge
The firm's lead-generation tool was a single-file HTML prototype: unmaintainable, and with the same scoring logic duplicated in two places, once in a gated internal advisor tool and again in a public unauthenticated flow. Every change had to be made twice, with no single source of truth for what the scoring rules actually were.
Solution
Canvas Labs Partners rebuilt the prototype as a server-authoritative single-page application on React 19 and Vite, with zero business logic running on the client at all. Every scoring decision happens on the server in Flask instead, so the duplicated-logic problem the old prototype had cannot recur.
A single channel-aware evaluation engine replaces the two copies of scoring logic that used to drift apart. It serves both the gated internal advisor tool and the public unauthenticated flow from the same backend, so a change to the scoring rules happens once and applies everywhere, instead of being written into two code paths kept in sync by hand.
On top of the engine, Canvas Labs Partners added a live findings rail that updates as a visitor answers the diagnostic, using debounced, abort-superseded requests so an outdated response can never overwrite a newer one. A feature-flagged Stripe paywall sits behind the findings, turning what was a free diagnostic prototype into a funnel that converts into paid revenue.
Results & benefits
The business logic that once lived in two places, duplicated between a gated internal advisor tool and a public unauthenticated flow, now lives in exactly one: a single channel-aware evaluation engine running server-side in Flask. What started as a single-file HTML prototype is now a production funnel, with a live findings rail that updates as a visitor answers the diagnostic and a feature-flagged Stripe paywall converting that attention into paid revenue. Zero business logic runs on the client, so a scoring-rule change takes effect everywhere at once, for internal advisors and public visitors alike.
Customer
Financial advisory business
Services
- Legacy modernization & platform re-architecture
- Server-authoritative application engineering
- Payments & funnel integration
Tech stack
About us
Canvas Labs Partners is a software consulting team that designs and ships production agentic AI systems: multi-agent pipelines, tool-calling architectures, and human-governed automation, together with the trading infrastructure, blockchain, mobile, and product engineering those agents plug into. We publish our work as a case ledger rather than a portfolio, so every claim on this site links to the engagement behind it. Engagements follow the same four-step discipline, Map, Bound, Instrument and Govern, whatever the stack, and every entry in the ledger carries a result we are willing to be measured against.
Delivered individually, in a prior role, by one of Canvas Labs Partners’ founding team members. Not by the firm itself.
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