ipor-fusion 2.2.0

The IPOR Fusion SDK for Python

IPOR Fusion Python SDK

ipor_fusion is the official Python SDK for IPOR Fusion Plasma Vaults — typed abstractions for DeFi protocol interactions on EVM chains through a fuse adapter pattern.

Maintained by IPOR Labs AG.

Workflow
Social
Code

Quickstart

Install

pip install ipor-fusion

Connect and execute

from ipor_fusion import Web3Context, PlasmaVault, AaveV3SupplyFuse
from web3 import Web3

# 1. Create a Web3 context with your provider and private key
ctx = Web3Context.from_url(
    url="https://arb-mainnet.g.alchemy.com/v2/YOUR_KEY",
    private_key="0x...",
)

# 2. Wrap the PlasmaVault contract
vault = PlasmaVault(ctx, Web3.to_checksum_address("0xVAULT_ADDRESS"))

# 3. Build a fuse action (e.g. supply USDC to Aave V3)
fuse = AaveV3SupplyFuse(Web3.to_checksum_address("0xFUSE_ADDRESS"))
action = fuse.supply(
    asset=Web3.to_checksum_address("0xUSDC_ADDRESS"),
    amount=1_000_000,  # 1 USDC (6 decimals)
)

# 4. Execute on-chain
receipt = vault.execute([action])

CLI Quickstart

The SDK ships with a fusion CLI for inspecting and managing Plasma Vaults from the terminal.

You need an RPC provider URL — get a free key at Alchemy or Infura.

# Install with CLI extras (pipx keeps dependencies isolated)
pipx install 'ipor-fusion[cli]'

# Configure an RPC provider (auto-detects chain ID)
fusion config set-provider https://arb-mainnet.g.alchemy.com/v2/YOUR_KEY

# Inspect a vault (auto-saves to config on first use)
fusion vault info 0xB8a451107A9f87FDe481D4D686247D6e43Ed715e --chain-id ethereum

# List saved vaults
fusion vault list

MCP Server

The SDK includes an MCP server that exposes CLI tools to any MCP-compatible AI assistant (Claude Code, Cursor, Windsurf, etc.).

# Install with MCP extras (pipx keeps dependencies isolated)
pipx install 'ipor-fusion[mcp]'

Add to your MCP client configuration (e.g. .mcp.json):

{
  "mcpServers": {
    "ipor-fusion": {
      "command": "fusion-mcp",
      "type": "stdio"
    }
  }
}

Available tools:

Tool	Description
config_show	Show current configuration (providers, vaults, API key status)
config_set_provider	Set RPC provider URL for a chain (auto-detects chain ID)
config_set_etherscan_key	Set Etherscan API key (enables contract name resolution)
vault_info	Full on-chain vault state — assets, fuses, balances, lending health, reconciliation
vault_list	List all saved vaults
vault_add	Save a vault to the local config (auto-fetches on-chain name)
vault_remove	Remove a vault from the local config

Configure providers and vaults via fusion config or the MCP config tools first.

Architecture

The SDK uses a fuse adapter pattern:

• Fuses encode protocol-specific calls into FuseAction objects (pure calldata, no state)
• PlasmaVault batches and executes FuseAction sequences on-chain via execute()
• Web3Context manages provider connections, signing, and transaction dispatch

Fuse.method()  -->  FuseAction  -->  PlasmaVault.execute([actions])  -->  on-chain tx

Core modules (ipor_fusion.core)

Module	Purpose
Web3Context	Provider connection, signing, tx dispatch
PlasmaVault	ERC-4626 vault — execute, deposit, withdraw
AccessManager	Role-based access control
RewardsManager	Claim and vest rewards
WithdrawManager	Time-windowed withdrawal requests
PriceOracleMiddleware	Asset price feeds

Supported protocols (ipor_fusion.fuses)

Protocol	Fuses
Aave V3	AaveV3SupplyFuse, AaveV3BorrowFuse
Morpho	MorphoSupplyFuse, MorphoCollateralFuse, MorphoBorrowFuse, MorphoFlashLoanFuse, MorphoClaimFuse
Uniswap V3	UniswapV3SwapFuse, UniswapV3NewPositionFuse, UniswapV3ModifyPositionFuse, UniswapV3CollectFuse
Ramses V2	RamsesV2NewPositionFuse, RamsesV2ModifyPositionFuse, RamsesV2CollectFuse, RamsesClaimFuse
Compound V3	CompoundV3SupplyFuse
Gearbox V3	GearboxSupplyFuse, GearboxStakeFuse
ERC-4626	ERC4626SupplyFuse
Fluid Instadapp	FluidInstadappSupplyFuse, FluidInstadappStakingFuse
Universal	UniversalTokenSwapperFuse

Supported networks

• Ethereum mainnet
• Arbitrum One
• Base

Development

poetry install                                              # Install dependencies
poetry run pytest tests/test_fuse_encoding.py -n auto -v    # Unit tests (fast, no Docker)
poetry run pytest -v -s                                     # All tests (needs Docker + .env)
poetry run black ./                                         # Format
poetry run pylint --rcfile=pylintrc.toml --verbose --recursive=y .  # Lint
poetry run mypy .                                           # Type check

Integration tests require Docker (Anvil) and provider URLs in .env:

cp .env.example .env
# Edit .env with ARBITRUM_PROVIDER_URL, ETHEREUM_PROVIDER_URL, BASE_PROVIDER_URL

Examples

For full usage patterns, see the example repository: ipor-fusion-alpha-example