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
transactions_per_minute · minute
600
Development-mode project per API per project
transactions_per_minute · minute
50
OS Places API Partner trial per API Key across an account
transactions_per_minute · minute
50

Sources

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for rate limits

4 MCP tools reach this
  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/ordnance-survey-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.