Components

Kaizen consists of several components that work together to provide the full prediction market experience. This section documents each component and how to run them.

Component Overview

Component	Description	Port	Package
Kaizen Core	Main node (Rust)	8545 (RPC+WS at /ws), 9000 (gRPC)	`apps/node`
Kata CLI	Command-line tool	-	`apps/cli`
Oracle	Price feeder	8550	`apps/oracle`
Solver	RFQ quote provider	3001 (docker), 3000 (default)	`apps/mock-solver`
Bridge	Deposit relayer	3002 (docker), 3000 (default)	`apps/mock-bridge`
Settler	Settlement service	9090 (metrics)	`apps/settler`
Explorer	Block explorer	3100	`apps/explorer`
Tester App	Frontend playground	3000	`apps/tester`
RPC Proxy	Routes reads/writes	8546	`apps/proxy`
RPC Proxy	Routes reads/writes, WS fan-out	8546	`apps/proxy`

Local Development Setup

To run a complete local development environment:

# Terminal 1: Start Kaizen Core
cargo run -- run
 
# Terminal 2: Start Oracle (dry run for testing)
cd oracle && pnpm start -- --dry-run
 
# Terminal 3: Start Solver
cd solver && pnpm start -- --port 3000
 
# Terminal 4: Start Bridge
cd bridge && pnpm start -- --port 3001

Recommended Test Keys

For local development, you can use these test private keys:

# Feeder (Oracle)
export FEEDER_PRIVATE_KEY="0x0000000000000000000000000000000000000000000000000000000000000001"
 
# Solver
export SOLVER_PRIVATE_KEY="0x0000000000000000000000000000000000000000000000000000000000000002"
 
# Bridge
export BRIDGE_PRIVATE_KEY="0x0000000000000000000000000000000000000000000000000000000000000003"