Finance & Payments (36)

Payment rails, wallets, billing and financial infrastructure usable by agents.

Machine-readable: /api/finance-payments.json.

• A2A x402 Extension

  Extension bringing x402 crypto payments to the Agent2Agent (A2A) protocol so agents can monetize services with on-chain payments.

• Agent Payments Protocol (AP2)

  Open protocol for AI agents to make payments on behalf of users securely, complementing A2A and MCP.

• Agentic Commerce Protocol (ACP)

  Open standard from OpenAI and Stripe for programmatic checkout flows between buyers, their AI agents and businesses.

• Catena (unknown)

  Banking and governance platform for AI agents supporting payments, treasury and other financial services.

• Circle Agent Stack

  Circle's agent-native tooling (Circle CLI, agent wallets, nanopayments) for agents to hold and move USDC, pay for x402 services and stay within compliance guardrails.

• Circle CCTP

  Cross-Chain Transfer Protocol: permissionless cross-chain transfers of USDC, EURC and registered third-party tokens.

• Circle Gateway (Nanopayments)

  Unified USDC balance across chains with instant cross-chain minting; Gateway Nanopayments enable gasless sub-cent USDC micropayments via x402.

• Circle Wallets

  APIs and SDKs for developer-controlled, user-controlled and modular (smart contract) wallets across multiple blockchains.

• Coinbase Agentic Wallet

  Wallet tooling that lets AI agents hold, spend, trade and earn stablecoins with guardrails, via the awal CLI + skills or an MCP server.

• Coinbase AgentKit

  Coinbase Developer Platform's framework- and wallet-agnostic toolkit for giving AI agents a crypto wallet and onchain actions (Node.js and Python).

• Coinbase CDP Non-Custodial Wallets

  Coinbase Developer Platform wallets for users (social login, no seed phrases) and for systems and agents (API key, keys held in a TEE).

• Coinbase CDP x402 Facilitator

  Coinbase Developer Platform's x402 offering: a hosted facilitator that verifies and settles x402 payments, plus seller and buyer SDK quickstarts.

• Crossmint Agent Payments

  Crossmint's payment infrastructure for AI agents: scoped agent cards, agent wallets and agent checkouts across many blockchains.

• Kite Agent Passport

  Agentic payment infrastructure giving AI agents identity, a funded wallet, delegated spending rules and onchain settlement with verifiable receipts.

• L402 (Lightning HTTP 402)

  Lightning Labs standard for paying for and authenticating to APIs with Bitcoin Lightning payments; Aperture is the reference reverse proxy.

• Lightning Agent Tools

  Lightning Labs toolkit of seven composable skills plus an MCP server letting agents run a Lightning node, pay for L402 APIs and host paid endpoints.

• Machine Payments Protocol (MPP)

  Open standard for machine-to-machine payments over HTTP 402, co-developed by Tempo and Stripe; charge per API request, tool call or content.

• Mastercard Agent Suite for Merchants (unknown)

  Mastercard developer product to bring agentic commerce to merchants through a single integration.

• MetaMask Smart Accounts Kit

  MetaMask toolkit for smart contract accounts built on the open-source Delegation Framework contracts, supporting delegated execution on an account's behalf.

• Nevermined

  Payments infrastructure for AI agents: delegated spending, usage metering, payment plans and settlement across MCP, x402 and A2A.

• Nostr Wallet Connect (NWC)

  Open protocol (Nostr NIP-47, draft) that lets clients and apps access a remote Bitcoin Lightning wallet in a standardized way.

• pay.sh

  Single-binary CLI that transparently handles HTTP 402 (x402 and MPP) payments so agents can call paid APIs with no sign-up.

• PayPal Agent Toolkit and MCP Server

  PayPal toolkit (TypeScript) exposing PayPal APIs such as invoicing to OpenAI Agents SDK, LangChain, Vercel AI SDK and MCP, plus a hosted remote MCP server.

• Privy Agentic Wallets

  Privy server wallets for agents and autonomous systems that execute onchain transactions independently under strict policy controls.

• Shopify Agentic Commerce

  Shopify developer platform for AI agents that authenticate with Shopify, search the Catalog, build carts and checkouts, and monitor orders via UCP.

• Skyfire

  Identity and payments layer for AI agents: verified agent identity plus token-based payment credentials and stablecoin payments.

• Stripe Agentic Commerce

  Stripe integrations for selling through agents and embedding commerce in AI interfaces, including Shared Payment Tokens for agent-initiated purchases.

• Stripe for Agents (Stripe AI)

  Stripe's agent toolkit: plugins, remote MCP, agent skills and SDKs for usage-based billing, agentic commerce and machine payments.

• Stripe Issuing for Agents

  Issue cards and credentials that agents can use to purchase autonomously, with spend controls, real-time authorization decisioning and full visibility.

• Tempo

  Payments-first Layer 1 blockchain incubated by Stripe and Paradigm, purpose-built for stablecoin payments at scale; co-developer of MPP.

• Turnkey

  Wallet and private-key infrastructure with policy-scoped signing, used for embedded wallets, server-side automation and AI agent wallets.

• Universal Commerce Protocol (UCP)

  Open standard giving platforms (AI agents, apps), businesses, payment service providers and credential providers a common language for commerce.

• USDC

  Fully reserved dollar stablecoin issued by Circle, the settlement asset used by many agent payment rails including x402.

• Visa Intelligent Commerce

  Visa's portfolio for agentic commerce, embedding payment credentials, controls, authentication and protections into AI-initiated purchases.

• Visa Trusted Agent Protocol (beta)

  Signature-based framework (Oct 2025) letting merchants verify trusted commerce agents, distinguish them from malicious bots and receive consumer and payment context.

• x402 Bazaar

  Public catalog of x402 payment-gated services discovered by the CDP Facilitator; search by intent, browse resources or look up by merchant address.