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Services

Cartridge offers a set of platform services for onchain games and applications:

  • Paymaster — sponsor transaction fees so your users don't need to hold STRK for gas.
  • RPC — Starknet RPC endpoints for mainnet and Sepolia, with API token and CORS-based authentication.
  • vRNG — atomic, verifiable randomness for fully onchain games via EC-VRF on the Stark curve.

Each service is self-served via the CLI and can be used independently or together.