A public API for job-market trends

We already tag every job with structured facets — role, seniority, skills, location, salary. Until now you could only see them one job at a time. The new Insights API aggregates them across the whole catalogue, no login required:

• /api/v1/insights/roles — roles ranked by how many jobs are open, plus a 30-day growth measure. Scope by country.
• /api/v1/insights/skills — the same for skills: what’s most in demand right now, and what’s rising.
• /api/v1/insights/velocity — hiring velocity over time (jobs added vs. removed per week), optionally for a single category, role level, or country.
• /api/v1/insights/salary — salary bands (25th / 50th / 75th percentile) for a role, reported per currency so figures are never mixed.

Every response is aggregate-only — counts, percentiles, and labels, never an individual posting. It reads from precomputed rollups, so it’s fast, and it’s part of the same open API as everything else (it’s in our OpenAPI spec, so ChatGPT and other agents can call it too).

This is the data layer. Browsable pages built on top of it — “highest-paying backend roles”, “fastest-growing skills” — are next.