agentwallet.md

Every wallet, SDK, and payment rail an AI agent needs to hold, send, and earn money.

Agent-friendly · agentwallet.md/llms.txt 9 Wallets · 6 Payment Rails · 7 Standards · 5 MCP Servers Updated Mar 31, 2026
Agents: search via ?q=MPC+wallet
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ERC-4337
The standard behind it all

Agent Wallet Infrastructure

Give your AI agent a wallet. These are purpose-built for agents — MPC keys, delegated signing, spending controls, no private key exposure.

Coinbase AgentKit
by Coinbase · Open Source
WalletMCP
The most popular open-source agent wallet framework. MPC key management, no private key exposure. Built-in actions: transfer, swap, deploy tokens, mint NFTs. Also works as MCP server.
LangChain / Vercel AI SDKMulti-chain (Base, ETH, Polygon, Arbitrum)Free
MetaMask Smart Accounts
by ConsenSys · ERC-4337 + ERC-7710
WalletDelegation
Smart account toolkit with delegated transactions for AI agents. Agents get scoped, revocable permissions — signing key stays on the user's device. CoinFello OpenClaw skill enables MetaMask agent transactions.
ERC-4337 Smart AccountsERC-7710 DelegationsSnaps extensible
Circle Programmable Wallets
by Circle · USDC-native
Wallet
MPC-based wallet infrastructure. USDC-native, gas station (sponsored gas), smart contract platform. Enterprise-grade for agents that need to hold and move stablecoins.
MPC key shardingGas sponsorshipMulti-chain
Skyfire
by Skyfire
WalletPayment
Payment infrastructure purpose-built for AI agent transactions. USDC settlement, usage-based micropayments, agent-to-agent payments. API-first.
USDC settlementMicropaymentsAgent-to-agent
Crossmint
by Crossmint
Wallet
Agent wallet infrastructure with built-in identity and compliance. Custodial + non-custodial wallets, fiat on-ramp, multi-chain, KYC-ready.
Fiat on-rampKYC-readyNFT minting API
Payman AI
by Payman
WalletPayment
AI agent payment platform with built-in wallet and task marketplace. Spending controls, task-based payments, human-in-the-loop approval.
Spending controlsTask marketplaceHuman-in-the-loop
Privy Server Wallets
by Privy
SDKWallet
Embedded wallet SDK with server-side wallets — no UI needed, ideal for headless AI agents. Cross-chain, fiat on-ramp, policy engine for spending rules.
Server wallets (headless)Policy engineCross-chain
Turnkey
by Turnkey
SDKWallet
Cryptographic key infrastructure with policy-based signing. TEE-based secure enclaves. Sub-organization model lets each agent have its own isolated wallet with custom policies.
TEE secure enclavesPolicy engineAPI-first
Safe (Gnosis Safe)
by Safe Ecosystem Foundation · Most TVL in smart accounts
WalletMulti-sig
Multi-sig and modular smart account platform. Modules and guards enable programmable agent logic. Most total value locked of any smart account platform.
Multi-sigModular (Safe{Core})Highest TVL

Agent Payment Rails

How agents pay for things — from HTTP-native crypto payments to Visa card credentials. TradFi and crypto are converging here.

x402 Protocol
by Coinbase · Open Source
PaymentProtocol
HTTP 402-based machine-to-machine payment protocol. Agent hits an API, gets a 402 response, pays in USDC, gets access. No auth tokens, no subscriptions — just pay per request.
HTTP-nativeUSDC settlementPay-per-request
Stripe Agent Toolkit
by Stripe · Open Source
PaymentSDK
Official toolkit for AI agents to use Stripe APIs. Create payment links, send invoices, check balances, manage subscriptions. LangChain and Vercel AI SDK integration.
Payment linksInvoicingMetered billing
Visa Intelligent Commerce
by Visa
Payment
AI-ready payment credentials for agent commerce. Tokenized credentials let agents initiate card payments, negotiate with merchant AI. The TradFi bridge to agent economy.
Tokenized credentialsAgent-initiated paymentsAnnounced 2025
Mastercard Agent Pay
by Mastercard
Payment
Framework for AI agents to make payments on cardholder's behalf. Tokenized agent credentials, spending controls, biometric confirmation for high-value transactions.
Spending controlsBiometric confirmAnnounced 2025
Gnosis Pay
by Gnosis
PaymentWallet
Self-custodial Visa debit card linked to a Safe smart account. On-chain wallet funds spendable via a real Visa card. Programmable spending rules via Safe modules.
Visa debitSafe-linkedSelf-custodial
PayPal Agent Checkout
by PayPal
Payment
Agent-to-merchant payment flow. AI agent commerce APIs for checkout, invoicing, and disbursement.
Agent commerce APIsAnnounced 2025

Standards & ERCs

The building blocks. Every agent wallet is built on these standards — account abstraction, delegation, session keys, modular accounts.

ERC-4337 — Account Abstraction
Standard
The foundational standard. Smart accounts with UserOperations, Bundlers, Paymasters. Enables gas sponsorship, batched transactions, and custom validation logic. Every agent wallet listed above uses this.
Status: FinalUsed by: everyone
EIP-7702 — EOA Smart Account Upgrade (Pectra)
Standard
Allows existing EOA wallets to temporarily act as smart accounts. Batch transactions, gas sponsorship, and delegated signing — without migrating to a new address. Included in Ethereum's Pectra upgrade.
Status: Included in PectraSupersedes EIP-3074
ERC-7710 — Delegation Framework
Standard
How agents get permission to act on your behalf. Scoped, revocable delegations with caveats and enforcers. Used by MetaMask Delegator and CoinFello.
Status: DraftUsed by: MetaMask, CoinFello
ERC-7715 — Session Key Permissions
Standard
wallet_grantPermissions RPC method. Agents request time-limited, action-scoped session keys. The user approves once, the agent operates autonomously within bounds.
Status: DraftSession key management
ERC-7579 — Modular Smart Accounts
Standard
Minimal interface for composable smart account modules. Install/uninstall capabilities like plugins. Adopted by Rhinestone, Biconomy, ZeroDev.
Status: DraftUsed by: Rhinestone, Biconomy, ZeroDev
ERC-6900 — Modular Account Standard
Standard
Plugin interface standard for modular smart accounts. More opinionated than 7579. Used by Alchemy's Modular Account.
Status: DraftUsed by: Alchemy
MPC-TSS — Threshold Signatures
Standard
Not an ERC but the cryptographic foundation. Key is split into shares — no single point of failure. Used by Coinbase, Circle, Fireblocks, Turnkey, Web3Auth for agent signing.
ProductionUsed by: most wallet infra

MCP Servers for Crypto

Connect your AI agent to on-chain data and wallet operations via Model Context Protocol. The standard integration layer.

Coinbase AgentKit MCP
MCPWallet
AgentKit's MCP server mode. Wallet creation, transfers, token deployment, DeFi actions — all accessible via MCP protocol from Claude, Cursor, or any MCP client.
GOAT (Great Onchain Agent Toolkit)
MCP
200+ DeFi tools via MCP. Swap, lend, bridge, stake — multi-chain. The largest collection of on-chain agent actions.
Alchemy MCP Server
MCP
MCP server for Alchemy's blockchain APIs. Token balances, NFT data, transaction history, smart account operations.
Dune Analytics MCP
MCP
SQL queries over blockchain data via MCP. Dashboard access, custom queries, on-chain analytics for agent decision-making.
Allora MCP
MCP
AI-powered price inference and DeFi intelligence. Agents use Allora's prediction network for smarter trading decisions.

On-Chain Agent Identity

Who is this agent? On-chain identity, attestation, and reputation for agent wallets. The unsolved frontier.

ENS (Ethereum Name Service)
Identity
Human-readable names for agent addresses. Text records for agent metadata, subdomains for sub-agents. The DNS of Ethereum.
Ethereum Attestation Service (EAS)
Identity
Schema-based on-chain attestations. Composable reputation — agents can build verifiable track records of their transactions and behavior.
Coinbase Verifications
Identity
KYC-backed on-chain attestations on Base. Verify the human behind an agent wallet — country, age — without exposing PII.
Spectral
Identity
On-chain agent identity and credit scoring. Agent NFTs, on-chain ML inference. Credit scores for agent wallets — how trustworthy is this agent?
World ID (Worldcoin)
Identity
Proof-of-personhood. ZK proofs to verify "a real human controls this agent" without revealing who. Useful for distinguishing autonomous agents from human-operated ones.

Agent Wallet Comparison

Picking a wallet for your agent? Here's what matters: key management, chain support, and whether your agent can act autonomously.

Wallet Key Model Chains Agent Autonomy Best For
Coinbase AgentKit MPC Base, ETH, Polygon, Arbitrum Full Getting started fast
MetaMask Smart Accounts Smart Account + Delegation EVM chains Scoped User-delegated agent actions
Circle Wallets MPC Multi-chain Full USDC-heavy operations
Privy Server Wallets Server-side EVM + Solana Full Headless agents (no UI)
Turnkey TEE + Policy EVM chains Policy-bounded Enterprise with strict rules
Safe Multi-sig + Modules EVM chains Module-bounded High-value treasury
Skyfire Custodial (USDC) Multi-chain Full Agent micropayments
Crossmint MPC / Custodial Multi-chain Full Compliance-first agents
Payman AI Custodial Multi-chain Human-in-loop Task-based agent payments

Agent Autonomy: Full = agent can transact independently. Scoped = agent acts within delegated permissions. Human-in-loop = requires approval for transactions.

List Your Agent Wallet

Building wallet infrastructure for AI agents? Submit it. We'll review, categorize, and list it in the directory.

Submit /llms.txt
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