To use the API, send a POST request to the URL for each function as indicated below.

Your API key can be found in your member prefences.

Get collection list
URL: https://letslogic.com/api/v1/collections
PARAMS: key

Get levels in collection
URL: https://letslogic.com/api/v1/collection/collection_id
PARAMS: key

Submit level solution
URL: https://letslogic.com/api/v1/level/level_id
PARAMS: key & solution

PHP examples here.

1.	Findus	5,204,120
2.	Mark	4,986,360
3.	Milan	4,835,340
4.	Megerian	4,827,530
5.	ejsantos123	4,187,410
6.	mimil	3,841,260
7.	Ficko	3,707,240
8.	shengli03	3,261,140
9.	Strange Yeah	2,973,260
10.	Rincewind	2,887,640

1.	Germany	16,690,890
2.	China	9,389,030
3.	France	8,427,190
4.	United States	7,358,300
5.	Serbia	6,689,930
6.	Ukraine	5,827,890
7.	Slovenia	5,034,620
8.	Portugal	4,750,370
9.	Australia	4,613,080
10.	Romania	4,156,970

	Level Collections	648
	Total Levels	53,163
	Unsolved Levels	31