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Version 0.2.0 (Current)

Release Date: March 3, 2026

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New Features

Multi-strategy budget allocation for AI agent teams:
  • Fixed Allocation - Assign specific amounts to each agent
  • Proportional Allocation - Distribute based on weights
  • Performance-Based - Allocate based on ROI history
  • Rollover - Carry over unused budget with bonus allocation
  • Budget utilization tracking and alerts
  • Auto-rollover to new cycles
Real-time monitoring and alerting:
  • Transaction monitoring with configurable thresholds
  • Policy violation alerts
  • Budget utilization warnings
  • Multi-channel delivery (email, Slack, webhook)
  • Custom alert rules and conditions
Improved Model Context Protocol integration:
  • Better error handling and validation
  • Support for multiple wallet management
  • Enhanced policy verification tools
  • Spending analytics and reporting
Native support for Vercel AI SDK:
  • @sardis/ai-sdk package
  • Seamless integration with ai package
  • TypeScript-first design
  • Streaming payment status
Simplified agent integration:
  • sardis-agent-sdk package for Anthropic Claude
  • Automated agent loop with run_agent_loop()
  • Read-only mode for observer/auditor agents
  • Tool definition and result parsing handled automatically

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Improvements

  • Performance - 40% faster transaction execution with optimized chain routing
  • Security - Enhanced mandate chain verification for AP2 protocol
  • Documentation - Complete API reference with interactive examples
  • Error Messages - More detailed error messages with troubleshooting hints
  • Type Safety - Improved TypeScript types across all SDKs

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Bug Fixes

  • Fixed gas estimation for Arc (Circle L1) transactions
  • Resolved wallet balance sync issues on Polygon
  • Fixed EURC token address on Base Sepolia testnet
  • Corrected spending policy evaluation for time-based rules
  • Fixed webhook signature verification edge cases

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Version 0.1.0

Release Date: January 15, 2026

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Initial Release

  • Non-custodial MPC wallets via Turnkey integration
  • Natural language spending policies with policy firewall
  • 5 blockchain networks - Base, Polygon, Ethereum, Arbitrum, Optimism
  • Virtual cards via Lithic integration
  • KYC/AML compliance via Persona and Elliptic
  • Append-only audit ledger for all transactions
  • AP2 (Agent Payment Protocol) - Mandate chain verification
  • TAP (Trust Anchor Protocol) - Ed25519 and ECDSA-P256 identity
  • UCP - Universal Commerce Protocol
  • A2A - Agent-to-Agent escrow mechanics
  • MCP Server for Claude Desktop and Cursor
  • LangChain integration with sardis-langchain
  • OpenAI Functions with sardis-openai
  • CrewAI tools with sardis-crewai
  • Python SDK with sardis package
  • TypeScript SDK with @sardis/sdk
  • USDC - USD Coin on all chains
  • USDT - Tether on Ethereum, Polygon, Arbitrum, Optimism
  • EURC - Euro Coin on Arc, Base, Polygon, Ethereum
  • PYUSD - PayPal USD on Ethereum

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Migration Guide

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Upgrading from 0.1.x to 0.2.x

1

Update Dependencies

# Python
pip install --upgrade sardis

# TypeScript
npm install @sardis/sdk@latest @sardis/mcp-server@latest
pnpm install @sardis/sdk@latest @sardis/mcp-server@latest
2

API Changes

No breaking changes - all 0.1.x code remains compatible.Optional: Use new features like budget allocation:
from sardis_v2_core.budget_allocator import BudgetAllocator, AllocationStrategy

allocator = BudgetAllocator()
cycle = allocator.create_cycle(
    org_id="your_org",
    period=BudgetPeriod.MONTHLY,
    total_budget=Decimal("10000"),
    strategy=AllocationStrategy.PROPORTIONAL,
    agent_configs=agents,
)
3

Environment Variables

No new required environment variables. Existing configuration remains unchanged.Optional: Add alert configuration:
SARDIS_ALERT_WEBHOOK_URL="https://your-webhook.com"
SARDIS_SLACK_WEBHOOK_URL="https://hooks.slack.com/..."
4

Test Your Integration

Run your test suite to verify compatibility:
# Python
uv run pytest tests/

# TypeScript
pnpm test

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Upcoming Features

These features are in development and will be released in future versions. Follow our GitHub for updates.

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v0.3.0 (Q2 2026)

  • Multi-signature wallets - Require multiple approvals for high-value transactions
  • Advanced fraud detection - ML-powered anomaly detection
  • Mobile SDK - React Native integration for mobile agents
  • Staking rewards - Earn yield on idle wallet balances
  • Cross-chain swaps - Automatic token swapping across chains
  • Gas abstraction - Pay gas fees in stablecoins

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v0.4.0 (Q3 2026)

  • Fiat on-ramps - Direct bank transfers to wallets
  • Recurring payments - Subscription management for agents
  • Invoice generation - Automated invoicing for A2A transactions
  • Tax reporting - Export transaction data for tax filing
  • Agent reputation system - On-chain trust scoring
  • Governance tokens - Community-driven protocol decisions

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Release Notes Archive

v0.2.0 Release Notes

Full release notes on GitHub

v0.1.0 Release Notes

Initial release announcement

Roadmap

View our public roadmap

GitHub Releases

All releases and changelogs

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