Introduction
Vellinium is a modular DeFi execution, accounting, and validation framework designed for protocol teams, on-chain funds, and infrastructure operators. This documentation provides comprehensive technical guidance for integration and operation.
The complete SDK source code, examples, and integration guides are available on GitHub.
github.com/Vellinium/vellinium-sdkThis platform is infrastructure-grade tooling for protocol operators. It is not a retail product, yield application, or trading interface. All information provided is for technical integration purposes only and does not constitute financial advice.
Architecture Overview
Vellinium employs a layered architecture with clear separation of concerns. Each layer operates independently while maintaining strict interfaces for composability and auditability.
Vault Layer
The vault layer provides secure asset custody and interaction interfaces. All vault operations follow deterministic execution paths with comprehensive state validation at each step.
Vault Operations
Vault operations include deposits, withdrawals, and internal transfers. Each operation is atomic and validated against the current vault state to ensure consistency. Failed operations revert entirely with detailed error messages.
Asset Management
Multi-asset support with normalized accounting across different token standards (ERC20, ERC4626). Asset balances are tracked with full precision, and all conversions use validated oracle prices.
Security Controls
Role-based access control ensures that only authorized operators can execute vault operations. Time-locks and multi-signature requirements can be configured per deployment for additional security layers.
Oracle Pricing Engine
Oracle integration ensures accurate price feeds with multi-source validation and tamper resistance. The pricing engine supports configurable update frequencies and staleness checks.
Price Feeds
Integration with Chainlink, Pyth, and other industry-standard oracle providers. Price feeds are aggregated and validated before use in protocol calculations.
Multi-Source Validation
Cross-reference multiple oracle sources to detect anomalies. Median pricing with outlier detection ensures robustness against single-source failures or manipulation attempts.
Staleness Detection
Automatic staleness checks reject outdated price data. Configurable staleness thresholds per asset ensure that pricing remains current during normal operations and falls back to safe modes during outages.
Yield Routing Logic
Configurable yield allocation strategies enable sophisticated capital deployment while maintaining full transparency and predictability in routing decisions.
Routing Strategies
Multiple routing strategies available: equal-weight distribution, yield-optimized allocation, risk-adjusted routing, and custom strategies via plugin interface. Each strategy is fully auditable and deterministic.
Capital Deployment
Automated capital deployment across whitelisted yield sources. Deployment decisions are logged on-chain with full reasoning context for post-hoc analysis and optimization.
Rebalancing Logic
Threshold-based rebalancing triggers when allocations drift beyond configured bounds. Gas-optimized execution minimizes transaction costs while maintaining target portfolio composition.
Position Accounting
Comprehensive position tracking with full audit trail support. All position changes are recorded with complete context for reconciliation and reporting purposes.
Position Tracking
Real-time position state maintained on-chain. Position updates are atomic and include timestamp, price, and full transaction context for complete traceability.
Audit Trail
Immutable event log for all position changes. Audit trail includes initiator, reason codes, and state snapshots before and after each operation for comprehensive compliance reporting.
Reconciliation
Built-in reconciliation utilities compare on-chain state against external records. Automated variance detection alerts operators to discrepancies requiring investigation.
Risk & Invariant Validation
Continuous invariant enforcement ensures protocol integrity across all operations. Risk parameters are validated at transaction boundaries with immediate rejection of invalid states.
Invariant Checks
Risk Parameters
Circuit Breakers
Analytics & Read APIs
Analytics-grade read interfaces provide structured access to protocol state for monitoring, reporting, and integration with external systems. All read operations are gas-free.
Protocol State
Historical Data
Performance Metrics
Security Model
The security model prioritizes correctness and auditability. All state transitions are explicit, all operations are logged, and all failure modes are documented.
Access Control
Audit Logging
Failure Modes
Integration Guide
Integration requires understanding of the execution boundaries, capabilities overview, and the distinction between read-only and execution interfaces. Refer to the SDK documentation for implementation details.