Agent Payments Protocol (AP2)

Lucid Agents Commerce SDK. Bootstrap AI agents in 60 seconds that can pay, sell, and participate in agentic commerce supply chains. Our protocol agnostic SDK provides CLI-generated templates and drop-in adapters for Hono, Express, Next.js, and TanStack, giving you instant access to crypto/fiat payment rails (AP2, A2A, x402, ERC8004).

Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.

Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.

Skills & plugins for agentic commerce : UCP, ACP, AP2, A2A, WebMCP, Magento 2, BigCommerce, WooCommerce

Trust infrastructure for million-agent economies on Solana - identity, reputation, and validation designed for continuous feedback at scale.

A chain-agnostic AI-native payment infrastructure, authz layer for x402

🚀 Curated resources for Google's Agent Payments Protocol (AP2), A2A & x402 — blogs, videos, repos & specs. Contributions welcome!

A neutral landscape analysis of AI agent payment protocols (x402, MPP, L402, Google AP2, Visa TAP + ICC, Mastercard Agent Pay, Amex ACE, Google/Shopify UCP, OpenAI ACP, and others). Maintained by Genesis Software Group, Copenhagen. Updated April 2026. CC BY 4.0.

A AP2 project in the AI-agent payments ecosystem.

A curated list of awesome Agentic commerce, Universal Commerce Protocol (UCP), Agentic payments protocol (AP2) resources, tools, and implementations.

A curated list of protocols and standards for AI agents — MCP, A2A, ACP, AG-UI, AP2, x402, and 50+ more, organized by stack layer

The open authority layer + SDKs for AI-agent payments. Thin Python/TS clients, an MCP server, framework adapters (LangChain/CrewAI/Hermes/OpenClaw/…), and @sardis/reference — a pure policy simulator + AP2/TAP/x402 verifiers showing exactly how Sardis decides if an agent may spend. The hosted engine that moves money is private.

A Java implementation of Google's Agent Payments Protocol (AP2) built on top of a2ajava.

LINE Bot with Google AP2 (Agent Payments Protocol) demo

🤖💵 Agentic Payment Service for Open Agent Skills Ecosystem.

The missing control plane for AI agent payments. Observe, control, protect, and test agent spending across x402, ACP, AP2, and Visa TAP.

Complete, working implementation of Google's Agent Payments Protocol (AP2) with real A2A message exchange, cryptographic JWT signatures, AI agents, and actual payment processing.

Plausible is a proof of anything protocol for Algorand

Open-source payment orchestration for AI agents. 17 packages — 14 routing strategies, 8 payment connectors (MPP, x402, Visa, Stripe, PayPal, UPI, credits, mock), policy engine, cascade failover, unified receipts, paid MCP tools. The routing and experience layer for machine-to-machine commerce.

This is the first AP2 (Agent Payments Protocol) Simulated Message Processing System that is able to process and settle AP2 payments

Example for Java implementation of Google's Agent Payments Protocol (AP2) built on top of a2ajava.

AP2 Protocol (Agent Payments Protocol) implementation with microservices architecture. Built with FastAPI, Docker Compose, Next.js, LangGraph, MCP, Meilisearch, Redis, WebAuthn, A2UI, and OpenTelemetry.

Secure multi-chain cryptocurrency payment gateway for AI agents and autonomous systems, based on x402 and AP2 protocols.

ayment gateway router for AI agents - autonomous crypto payments with AP2 mandates and x402 protocol

Testing platform for AI agent payment protocols (AP2, x402, ACP, UCP)

Agentic Payments Protocol Demo - Interactive comparison of ACP, AP2, x402, and MCP payment protocols for AI agents

Agent spending verification — budget caps, spending policies, and cross-agent budget tracking. Works with AP2, MPP, x402, or any payment rail.

P402 Payment Protocol

🤖💵 Agentic Payment Service for Open Agent Skills Ecosystem.

X402 payment handler for AI agent payment flows — middleware for agent-to-agent transactions

an open-source middleware framework for agentic economics on the Sui blockchain. This is the missing composable module layer between Sui's L1 primitives and real-world AI agent applications, analogous to x402 + ERC-8004 + Google AP2 on EVM — but native to Sui's object model.

The programmable OS for AI agents. Enable machines to autonomously discover and pay for services via ERC-8004 (Identity), x402 (Payments), and ERC-8183 (Escrow). Solve machine "economic disability" with AP2-powered mandates and budget policies, providing secure access to the internet’s full economic surface area.

AgentNexus2 is Base-native infrastructure for agent-to-agent payments, built around small, deterministic USDC escrow and settlement flows. It is designed for developers integrating autonomous agents and services that require verifiable, non-custodial payment coordination. AgentNexus2 is not a consumer application or marketplace.

Google AP2 (Agent Payments Protocol) compatibility layer for AgentPay �?maps AP2 Mandates to Fiber Hold Invoices