The custody layer
Wallets & key management for AI agents
Give an autonomous process signing power — without handing it the keys to everything.
15 resources · 12 chains
A wallet is an agent's hands onchain. The hard part isn't holding a key — it's letting an autonomous process sign transactions without giving it unbounded control of the funds. This layer is programmable custody: signing power with limits.
The models differ sharply, and so do the tradeoffs — MPC and TEE key storage, smart-account policies, session keys, sponsored gas, fully non-custodial agent wallets. We surface how each one actually holds keys and what guardrails it gives you, so you can judge the security model before you fund it.
The wallets stack
Agent wallets
Wallets built for programmatic signing by an agent, not a human clicking confirm.
MPC & TEE custody
Split-key and trusted-hardware key storage with no single point of compromise.
Smart accounts & policy
Spending limits, allowlists, and session keys that bound what an agent can do.
Gas & sponsorship
Paymasters and sponsored gas so agents transact without holding native tokens.
Wallets resources
Explore in directory →Coinbase AgentKit
ActiveCoinbase's toolkit for giving AI agents wallets and the ability to take onchain actions.
Bankr
ActiveCrypto execution layer and cross-chain wallet that lets agents and users trade, bridge, and manage assets via natural language, with a plug-and-play skills marketplace.
Privy
ActiveEmbedded and server wallet infrastructure used to give agents secure key management.
Trust Wallet Agent Kit (TWAK)
ActiveNon-custodial toolkit from Trust Wallet (MCP server, CLI, and SDK) that lets AI agents read and transact across 25+ chains within user-defined rules.
Turnkey
ActiveSecure key management infrastructure with policy controls, commonly used for agent wallets.
COTI
ActivePrivacy infrastructure that gives MCP-compatible agents private wallets, encrypted messaging, and confidential smart contracts using Garbled Circuits.
MetaMask Agent Wallet
EarlySelf-custodial MetaMask wallet for AI agents with built-in transaction simulation, threat scanning, and spending controls across EVM chains.
Phantom MCP
ActivePhantom's MCP server that lets AI agents view addresses, sign transactions, swap, and transfer tokens across Solana, Ethereum, Bitcoin, and Sui.
Giza (ARMA)
ActiveARMA is Giza's autonomous agent that manages stablecoin lending positions across Base DeFi protocols on the user's behalf.
Cobo Agentic Wallet
ActiveNon-custodial MPC wallet for AI agents with cryptographically enforced human rules, plus a WaaS Skill for building wallet apps via natural language.
Almanak
ActiveAn AI-agent framework and non-custodial vault protocol for designing, backtesting, and deploying automated DeFi yield and trading strategies.
Pieverse
ActiveOne-click deployment of Web3-native AI agents to Line, Kakao, and WhatsApp, each with its own wallet and onchain execution.
Definitive
ActiveA non-custodial trading platform and API offering algorithmic order types (TWAP, limit, stop) with smart order routing across many chains.
Carbon DeFi
ActiveAn on-chain trading protocol for automated, adjustable limit, range, and recurring orders that execute fully on-chain and non-custodially.
Freysa
UnknownAdversarial AI agent experiment where users try to convince an agent to release onchain funds.
Learn more
How Agents Use Wallets
Agent wallets are key-management systems that let an AI agent sign transactions programmatically, ideally with policies, spend limits, and approval flows that constrain what the agent can do.
What Are Onchain Agents?
Onchain agents are autonomous AI agents that can interact with blockchain systems, holding wallets, signing transactions, reading chain data, and executing workflows across protocols without constant human input.
Related use cases
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