Partners were requesting bespoke exports by email; there was no contract, no versioning and no way to meter or monetise access.
The AI-powered solution
HN Group shipped a versioned REST surface with API keys, tiered rate limits, webhooks and an interactive playground, live on a dedicated domain in under two days.
Impact & results
99.98% availability, sub-120ms median response time and a new recurring revenue line from API tiers.
Key features
Versioned REST endpoints with OpenAPI schema
Self-service API keys and tiered rate limits
Signed outbound webhooks with retries
Interactive request playground
Latency, error-rate and quota dashboards
Edge caching for read-heavy routes
Technology stack
TanStack Start
Server Routes
Supabase
PostgreSQL
Zod
Custom Domain
Live preview
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