| Plugin | Purpose | Download |
| Vault | Economy abstraction layer required for all currency transactions | SpigotMC |
| Economy Plugin | Any Vault-compatible economy (EssentialsX, CMI, TokenManager, etc.) | Varies |
| Plugin | What it unlocks | Download |
| PacketEvents 2.x | Strongly Recommended Powers virtual floating item displays. Without it, SignMarket falls back to vanilla display entities which count toward the entity limit. | SpigotMC |
| PlayerPoints | Enables point-based currency shops alongside Vault shops. No extra config just install it and the option becomes available. | SpigotMC |
| Floodgate | Bedrock player support via Geyser/Floodgate. Gives Bedrock players a book-based shop creation form. | GeyserMC |
