scematica-arb

Cross-DEX arbitrage engine for Scematica — graph search across Raydium, Orca, Meteora, and Jupiter for profitable cycles, with atomic profit-or-revert execution.

What it does

• Builds a live pool graph and searches for arbitrage cycles (graph.rs, searcher.rs, opportunity.rs).
• Sizes and executes the best path atomically (executor.rs), optionally gated/scored by the scematica-ai layer.
• Multi-DEX swap instructions come from scematica-executor.

Program-less by default (no on-chain deploy)

Arbitrage runs with no custom Solana program. Solana transactions are atomic, so the profit guarantee comes for free: the final hop's min_out is set to input + profit_floor, and any shortfall fails that swap and reverts the whole transaction — your capital is untouched.

cargo run --release --bin arb          # program-less (no SWAP_PROGRAM_ID) — zero deploy
SWAP_PROGRAM_ID=<id> cargo run ...      # use a deployed scematica-swap program instead
ARB_PROGRAM_LESS=1|0 cargo run ...      # force either path

Program-less mode is for self-funded arbitrage (you hold the starting capital); a flash-loan (borrow-in-transaction) strategy needs a flash-loan protocol's program.

Install

cargo install scematica-arb
arb --help

Part of the Scematica suite. See the workspace README for the full bot (sniper, dashboard, AI, Deep Q*, x402).

License

MIT