answer with HTTP

Programming puzzles for API natives.

Solve Advent-of-Code-style challenges without submitting code. Every puzzle gives you an obfuscated URL, a data endpoint, and an answer endpoint you must call yourself.

Level contract

The page shows the problem. Your terminal submits the answer.

GET /j7rK9mQ2vXnP4sT6aBcD

GET /api/data/j7rK9mQ2vXnP4sT6aBcD

POST /answer/j7rK9mQ2vXnP4sT6aBcD

Correct submissions return isCorrect,nextLevel, and the XP awarded. Replaying the same answer stays correct but awards 0 XP.