Account
Account
An end user’s account deployed by a neobank. Maps 1:1 to a Gnosis Safe on-chain. The Safe address is deterministically derived from the neobank ID, Account Type, and user wallet address.
Account Type
Account Type
A product offering created by a neobank (e.g., “Savings”, “Growth”, “BTC+”). Each Account Type is linked to exactly one Risk Architect Basket, which defines the strategy for all accounts under that type.
API (Application Programming Interface)
API (Application Programming Interface)
A set of HTTP endpoints exposed by Blend for querying vault data, strategies, TVL, and Safe operations. See the API reference for the interactive playground.
Asset Registry (@blend/assets)
Asset Registry (@blend/assets)
A public GitHub repository that serves as the single source of truth for DeFi asset metadata in Blend (names, price feeds, protocol sources). New assets are added via pull request, similar to DeFi Llama.
Basket
Basket
A Risk Architect-created investment strategy stored in the database. Contains asset addresses, chain IDs, and target allocation percentages. Maps to one or more Vault V2 deployments on-chain. One Basket per asset class per Risk Architect.
Risk Architect
Risk Architect
An organization of investment experts that creates and manages Baskets. Risk Architects define strategies, review rebalance requests, and pay per-rebalance fees. They do not have access to user funds. Equivalent to a “curator” or “risk manager” in Morpho and other vault-based protocols.
Delta-Neutral
Delta-Neutral
A strategy that aims for near-zero exposure to price movements of an underlying asset. Blend uses flash loans to create leveraged delta-neutral positions that capture yield spreads.
ERC-4626
ERC-4626
A standard for tokenized vaults that represent shares of a single underlying ERC-20 asset, providing a unified API for token vaults.
Flash Loan
Flash Loan
An uncollateralized loan that is taken out and paid back within the same blockchain transaction. Used in strategies to create leveraged positions safely - the entire transaction reverts if any step fails.
Intent
Intent
A signed, user-defined preference (e.g., risk profile) that guides automation.
Intent Engine
Intent Engine
The core automation component of Blend that orchestrates capital deployment and rebalancing based on user intents and market conditions.
IRM (Interest Rate Model)
IRM (Interest Rate Model)
A smart contract or algorithm that determines the interest rates for borrowing and lending in a DeFi protocol, typically based on utilization.
LST (Liquid Staking Token)
LST (Liquid Staking Token)
A token that represents a user’s staked assets in a proof-of-stake network (e.g., stETH). It allows users to gain liquidity on their staked funds.
LTV (Loan-to-Value)
LTV (Loan-to-Value)
The ratio of a loan to the value of the collateral securing it.
Morpho
Morpho
A DeFi protocol that enhances interest rates on other lending protocols like Aave or Compound. Blend integrates with Morpho for its delta-neutral strategies.
Neobank
Neobank
An organization (fintech, wallet provider) that integrates with Blend to offer DeFi products to their end users. Creates Account Types, selects Risk Architect Baskets, and deploys user accounts. Also referred to as an “integrating product” or “integration partner.”
Non-Custodial
Non-Custodial
Users retain full control over their private keys and, therefore, their assets. Blend does not take custody of user funds.
OpenAPI
OpenAPI
A machine-readable specification used to document Blend’s REST API and power the interactive playground in the docs.
Organization Member
Organization Member
A user with administrative access to a Risk Architect or neobank organization. Roles: Owner (full control), Admin (manage resources), Member (read-only analytics).
Paymaster
Paymaster
A smart contract that pays for transaction gas fees on behalf of users, abstracting away the need for users to hold the native network token.
Pegin
Pegin
The process of transferring an asset from one blockchain (like Bitcoin) to a sidechain or layer-2 network (like Botanix).
Rebalance Request
Rebalance Request
Created when a user’s positions deviate from the target allocations defined by their Basket. Risk Architects review and approve rebalance requests before execution. States: Pending, Approved, Executing, Completed, Failed, Cancelled.
Safe
Safe
A Gnosis Safe smart contract account that holds a user’s funds. In Blend, each user gets their own personal Safe where they are the sole signer. This is the foundation of Blend’s SMA (Separately Managed Account) model.
Salt Nonce
Salt Nonce
A deterministic value computed from
keccak256(BLEND_SALT_NONCE + neobankId + accountTypeId) used to derive unique, predictable Safe addresses. Enables multi-account support where the same user can have separate Safes for different products.SMA (Separately Managed Account)
SMA (Separately Managed Account)
Blend’s architecture where each user has their own isolated position (Gnosis Safe) rather than sharing a pooled vault. Enables individualized strategies, precise risk/return profiles, and per-user risk isolation.
Three-Layer Model
Three-Layer Model
The architecture separating Blend’s strategy configuration into three layers: (1) Risk Architect Intent (asset allocations via admin portal), (2) Asset Registry (metadata from @blend/assets GitHub repo), and (3) Blend Infrastructure (Vault V2 deployments in the database). Risk Architects only interact with Layer 1.
TVL (Total Value Locked)
TVL (Total Value Locked)
The total dollar value of assets deposited across strategies or integrations. Available via
vault/tvl API endpoints.Toxicity
Toxicity
Market conditions driven by MEV or manipulation that increase the risk of adverse selection, unstable borrow curves, or outsized price impact.
UTXO (Unspent Transaction Output)
UTXO (Unspent Transaction Output)
The amount of digital currency remaining after a cryptocurrency transaction is executed. Blend’s indexer monitors for these on the Bitcoin network.
Vault V2
Vault V2
The on-chain smart contract wrapper that Blend deploys to manage assets for a Basket. Some Vault V2s wrap a single asset; others wrap multiple assets for gas efficiency. Risk Architects do not interact with Vault V2s directly.
Zodiac Roles Module
Zodiac Roles Module
A Gnosis Safe module that enables fine-grained, role-based permissioning for what actions a delegated address (like Blend’s automation) can perform.