- Large-scale user address management
- High-frequency, small-amount asset distribution
- On-chain state-driven game logic
- Automatic fund sweeping (reducing operational costs)
- Server-side automatic signing (no private key management required)
- Unified Gas management to prevent transaction failures
- Fund and operational security with transaction policy and permission controls
1. Core Feature Modules
For gaming businesses, we recommend prioritizing the following capabilities:1. Bulk Address Pre-Generation (Address Pool)
Using Cobo WaaS 2.0’s address management feature, you can batch-generate large numbers of on-chain addresses in advance and build an Address Pool, eliminating delays caused by real-time address generation when users make their first deposit.- Achieve second-level address allocation to handle large-scale user growth
- Unified multi-chain management (supporting 80+ chains and their tokens), reducing development and maintenance costs
- Automatic address pool replenishment to ensure sufficient inventory
2. Batch Transfer (High-Throughput Transfer)
Cobo WaaS 2.0 supports high-concurrency Transfer API calls, combining multiple on-chain transaction requests for execution, automatically signed and broadcast by the MPC Wallet. Ideal for game rewards, airdrops, and PvP / PvE settlements.- Batch grouped distribution to reduce on-chain pressure
- Combined with Gas optimization strategies to lower costs
- Automatic retry or compensation for failed transactions
3. High-Frequency Event Monitoring (Webhook Event System)
Monitor on-chain events in real time via Webhook to keep game logic in sync with on-chain state.- Supports events such as Deposit, Transaction Status, and TSS request status
- Webhook events include a Cobo public key signature for authenticity verification
- Developer Console supports historical event viewing and debugging
4. Auto-Sweep
Automatically consolidates funds from user deposit addresses into the main wallet, reducing fragmentation and operational costs.- Enable Auto-Sweep in MPC Wallet
- Configure sweep address and trigger conditions (balance threshold / scheduled rules)
- Integrate with Fee Station for automatic Gas top-up to prevent sweep interruptions
- Automatic RBF to improve sweep success rate
- Set fee limits to control costs
5. Fee Station (Unified On-Chain Fee Management)
Fee Station is an account for centrally managing on-chain Gas and platform fees:- Unified Gas pool supporting multiple addresses and chains
- Automatic Gas sponsorship: automatically covers Gas when a transaction has insufficient funds
- Multi-currency deposit support: accepts stablecoin deposits with automatic conversion to the target chain token
- Unified fee settlement: covers workflows such as Auto Sweep and Batch Transfer
6. Risk Control and Permission Framework
An officially configurable risk control framework to ensure fund security and operational accountability:- Transaction Policies
- Governance Policies
- User Roles & Permissions
- Integration with Cobo Guard Multi-Factor Authentication (MFA)
- High-risk transaction blocking and manual confirmation (triggered via policies)
2. Feature Details and Operation Procedures
Pre-Integration Preparation
Role and Permission Planning- Admin, Developer, Operations
- Portal supports role and permission assignments to enforce separation of duties
- Development environment (Dev): integrate and test API / Webhook / Sweep
- Production environment (Prod): live business operations
- Production environment (Prod): run directly in the live environment
- Create an API Key
- Configure a Webhook Endpoint
- Register a Callback Endpoint (if required)
Getting Started
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Create an Institutional Wallet and Complete Basic Configuration
- Create an MPC Wallet (Organization-Controlled)
- Add the required chains
- Create a main wallet (Hot Wallet)
- Initialize Fee Station
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Set Up the User Address System
- Batch generate addresses → Build Address Pool → Assign to users upon registration
- Maintain a mapping of “user UID ↔ address ↔ chain ↔ token type”
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Deposit Monitoring and Game Logic Integration
- Configure Webhook → Subscribe to Deposit / Transaction Status events
- Receive events → Verify signature → Update balance or trigger game events
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Asset Distribution (Rewards / NFT)
- Build transaction request → Call Transfer API → Monitor status
- Use Batch Job / Queue system to handle high-concurrency distribution
- Use request_id to ensure idempotency
- Fee Station automatically ensures sufficient Gas
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Auto-Sweep
- Enable sweeping → Configure sweeping policy → Consolidate funds periodically or on trigger conditions
- Fee Station tops up Gas / automatic RBF improves success rate
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Risk Control and Security Policy Implementation
- Configure role-based access control (RBAC)
- Set up transaction policies / high-risk blocking (Transaction Policies)
- Integrate Cobo Guard MFA (Cobo Guard + MFA)
Use Cases
Role and Permission Management (RBAC)- Operations role: can initiate reward tasks but cannot directly sign transactions
- Finance role: can approve large rewards or special transactions
- Developer / Admin role: manages API / Webhook / Wallet configuration
- Single reward amount cap: prevents accidental large distributions
- Daily cumulative reward limit: controls total daily expenditure
- Only allow transfers to whitelisted NFT / Token addresses
- High-risk transactions (over-limit, abnormal frequency) require multi-party signature confirmation
- MPC Wallet multi-signature policy ensures funds remain secure even if some key shares are lost