Protocol / standard
x402
Internet-native payment standard
A standard for requesting payment and supplying payment proof when accessing a digital resource.
PROJECT DIRECTORY
Wallets, protocols, and the companies behind them.
Choose a category or search for a project to read its introduction and official sources.
28 projects
Protocol / standard
AP2
Agent Payments Protocol
Verifiable credentials and mandates record what a user authorized an agent to purchase or pay for.
Protocol / standard
AMP
Agentic Mobile Protocol
A framework connecting agent-led commerce with mobile wallets, super apps, and payment participants.
Protocol / standard
MPP
Machine Payments Protocol
A specification for agents and services to coordinate programmatic payments, including microtransactions and sessions.
Protocol / standard
ACP
Agentic Commerce Protocol
An open commerce standard connecting merchants with AI shopping surfaces through structured product information.
Protocol / standard
UCP
Universal Commerce Protocol
A common language for commerce interactions across platforms, agents, businesses, and payment providers.
Protocol / standard
Visa TAP
Trusted Agent Protocol
Signed request information helps merchants recognize approved agents and verify their stated commerce intent.
Product / service
Coinbase Agentic Wallets
Agentic Wallets
Give an agent a wallet to hold, spend, trade, and earn stablecoins.
Product / service
Circle Agent Wallets
Agent Stack
Programmable USDC wallets with spending policies and service discovery.
Product / service
Crossmint Agent Wallets
Wallets for agents
Programmable smart wallets with scoped agent access through a unified API.
Product / service
Privy Agent Wallets
Agent wallets
Wallet infrastructure for agents to hold funds and transact within guardrails.
Product / service
Turnkey Wallet Infrastructure
Wallet infrastructure
Private key management and wallet APIs for agent and stablecoin applications.
Product / service
Openfort Agent Wallets
Agent wallets
Agent wallets with spending policies, subscriptions, and batch operations.
Product / service
CDP Facilitator
Hosted x402 verification and settlement
A hosted service that verifies and settles x402 payments for resource providers.
Product / service
Nevermined
Agent payment and merchant tools
Payment tools combining scoped spending, a paid-services catalog, and purchase records.
Product / service
Circle Marketplace
Agent service discovery
A marketplace where agents discover services and pay for them in USDC.
Company
Coinbase
Company profile
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Company
Circle
Company profile
Explore agent-payment products, protocols, and articles associated with Circle.
Company
Crossmint
Company profile
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Company
Privy
Company profile
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Company
Turnkey
Company profile
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Company
Openfort
Company profile
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Company
Nevermined
Company profile
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Company
Visa
Company profile
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Company
Ant International
Company profile
Explore agent-payment products, protocols, and articles associated with Ant International.
Company
Company profile
Explore agent-payment products, protocols, and articles associated with Google.
Company
Stripe
Company profile
Explore agent-payment products, protocols, and articles associated with Stripe.
Company
OpenAI
Company profile
Explore agent-payment products, protocols, and articles associated with OpenAI.
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Projects are grouped by function and may appear in more than one category. Each introduction links to official sources.