Ordnance Survey · Rate Limits
Ordnance Survey Rate Limits
Ordnance Survey publishes a single estate-wide rate-limiting policy. Limits are transactions per minute, enforced PER API and PER API PROJECT, and differ between live-mode and development-mode projects. Exceeding a limit returns 429 until the rate falls back under the threshold. OS documents no RateLimit-* or Retry-After response headers and no per-plan quota table.
Ordnance Survey Rate Limits is the machine-readable rate-limit profile for Ordnance Survey on the APIs.io network, conforming to the API Commons Rate Limits specification.
It captures 3 rate-limit definitions, measuring transactions_per_minute.
The profile also includes response codes documented for throttled.
Tagged areas include Rate Limiting, Geospatial, and Open Data.
3 Limits
Throttle: 429
Rate LimitingGeospatialOpen Data
Limits
Live-mode project per API per project
600
Development-mode project per API per project
50
OS Places API Partner trial per API Key across an account
50