Geocoding — entry 013 of 80
bng2latlong
bng2latlong converts British National Grid (OSGB36) easting/northing pairs to WGS84 latitude/longitude via a free, keyless GET endpoint at api.getthedata.com — part of GetTheData's small set of UK-geodata utility APIs. It returns JSON with an open Access-Control-Allow-Origin: * header, and requires positive integer easting/northing values within the grid's valid range or it returns a structured JSON error.
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score74
Authentication25/25No authentication required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats9/15Single response format
Freshness20/20Verified within 6 months
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- No key needed — call it now.
Stored keyNo key stored
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