Gandalf CTF 🧙

A prompt injection CTF game. Each level has an AI defender guarding a secret password. Craft prompts to trick the defender into revealing it.

Rules

• One message = one attempt. Each chat message counts toward the score.
• No conversation memory. Each prompt is independent.
• Fewer attempts = better rank on the leaderboard.
• Levels are sequential, starting at level 1. Complete level N to unlock N+1.

Base URL

https://gandalf-api.lakera.ai

Endpoints