AIエージェント
AP2
An open protocol for secure AI-driven payments.
★ 3.2k スターApache-2.0
ガイドを見る →x402は、x402-foundationが公開しているオープンソースのAIエージェントプロジェクトです（GitHub: x402-foundation/x402）。GitHubスターは6,688、フォークは2,144で、Apache-2.0ライセンスの下で公開されています。GitHubでの最終更新は2026年10月7日です。
A payments protocol for the internet — built on plain HTTP.
Decide what you want the project to do before installing anything.
Grab the source and skim the README for setup requirements.
Install dependencies and add any API keys or settings it needs.
Launch it and follow the example workflow from the docs.
Built on the web's own protocol.
Designed for software paying software.
Pay without signing up anywhere.
A public standard, foundation-governed.
Made for agents that transact.
Neutral stewardship via x402 Foundation.
Download the source and move into the project folder.
git clone https://github.com/x402-foundation/x402.git
cd x402Pull in the Node packages the project needs.
npm installStart it with the project's documented command (often a dev server).
npm run dev # check README for the exact scriptIt is an open-source project at x402-foundation/x402 with 2144 forks. Check the contributors tab and recent commits to judge how active maintenance is.
Yes — Apache 2.0 allows commercial use and modification. Keep the license and notice files, and note it includes a patent grant.
Services return HTTP 402 Payment Required; clients pay programmatically over the protocol's rails — read the spec for the flow.
The protocol is asset-agnostic by design; check the docs for current settlement options.
Clone the repo and follow the README quickstart — the docs at https://x402.org walk through setup.
An open protocol for secure AI-driven payments.
Open-source search infrastructure built for AI workloads.
The open protocol that lets AI agents talk to each other.
The official Python SDK for Model Context Protocol servers and clients.
Infisical's credential vault and HTTP proxy, so AI agents call APIs without ever holding your real secrets.
Tradememory-protocol — decision audit trail + persistent memory for ai trading, open-so...
LibreAIカタログに掲載されたAIエージェントプロジェクトの中で最もスターの多いもの — x402が合わなかった場合に検討したい、現実的な候補リストです。
A personal AI that really does things — on any OS, with your data staying yours.
An agentic skills framework & software development methodology that works.
Agent harness optimization system with skills, memory and security for Claude Code, Codex and more
The agent that grows with you — a Python framework for adaptive AI agents.
DeepSeek's plugin-based agent harness where everything is a plugin.
カタログの中でx402とスター数が近いAIエージェントプロジェクト — 前後の棚もそのまま見て回れます。
AppAgent — Tencent's multimodal agent that learns smartphone apps by exploration, then operates them.
An embeddable, portable, branchable microVM that runs AI agents safely on your own machine.
Open Multi Agent — a self-hosted TypeScript agent runtime with durable approvals and verifiable run records.
Durable, composable AI agents — flows that crash and resume, retry safely, and explain every step.
A framework for building agentic apps
Open-source framework for building agentic apps in JavaScript, Go, Dart, and Python, built and used in production by Google