Vanguard Enterprise Advice APIs
Foundational audience research, messaging, and modular content infrastructure to bring Vanguard's Enterprise Advice APIs to external markets for the first time — cutting API documentation time by 40–50%.
Vanguard · 2023 · 
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The challenge
Vanguard’s Enterprise Advice APIs represented a significant expansion of the business — taking sophisticated financial advice infrastructure and making it available to external enterprise partners for the first time. The challenge wasn’t technical. It was translational.
Vanguard needed to communicate complex, highly regulated financial products to a range of external audiences who didn’t share the same institutional vocabulary. Without the right messaging, design system, or content infrastructure, every new API release was a bespoke, time-consuming exercise. The business needed a replicable foundation.
What we did
We built the foundational infrastructure Vanguard needed to scale external communications across its Advice API portfolio.
Audience research and journey mapping. We began with structured research in key markets to understand how external decision-makers — technical buyers, enterprise procurement leads, and financial services partners — actually evaluate and adopt API products. This grounded every subsequent decision in what audiences needed to see and when.
Messaging and narrative. We developed a clear positioning framework for the Enterprise Advice API proposition, including audience-specific messaging that addressed the distinct concerns of technical and commercial buyers without requiring Vanguard to produce entirely separate collateral for each.
Design system and style guides. We created a modular design system and accompanying style guides that established consistent visual and tonal standards across all externally-facing API content — from product documentation to sales decks.
Slide library. A turnkey PowerPoint library, linked directly to the modular messaging framework, equipped executives, stakeholders, and sales teams to tell consistent stories with speed. Centrally managed and cross-linked to relevant proof points, the library keeps communications compliant and current without requiring teams to build from scratch each time.
The results
- 40–50% reduction in the time Vanguard takes to externalize new APIs and produce accompanying documentation
- A replicable content and design infrastructure that scales across the growing API portfolio
- Consistent, audience-first messaging for a complex product communicated clearly to external markets for the first time