$0

Heads or tails

Call it.

Coin flip duels for graded cards. Put a slab or a pack on the line, call heads or tails, and the winner takes both.

  • Stakes lock in an on-chain escrow
  • A coin anyone can verify
  • Winner paid automatically

Tap the coin for a free practice flip

  1. 1

    Pick your stake

    Graded cards from your wallet, or a pack you both rip on the spot.

  2. 2

    Call it

    Heads or tails. Anyone whose stake is within 10% of yours can join.

  3. 3

    Winner takes both

    The coin flips on-chain and both stakes go to the winner, automatically.

Just flipped

All flips

    Open duels 0

    Pick a duel system and a category. Every stake must be within 10% of the creator's, by Collector Crypt insured value.

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    Real Collector Crypt packs, opened right here and paid in USDC or SOL. Keep the card, sell it back on the spot, flip it, or put the pack itself on the line.

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