Google

Google’s open-source footprint

We track 2 public Google repositories in the AI-payments directory, holding 962 GitHub stars between them. The largest is a2a-x402 at 541 stars. Written mainly in Python (1), Go (1). 2 of them shipped code in the last 90 days, most recently a2a-x402.

Open-source projects that build on Google

42 repositories in this directory name Google in their title, description or topics — useful if you want working code rather than documentation. The most-starred are below.

• ClawRouter  6.7k★ · TypeScript
  The agent-native LLM router for autonomous agents. 55+ models (8 free), <1ms local routing, USDC payments on Base & Solana via x402.
• agent-symphony  153★ · HTML
  Multi-Agent AI Task Orchestrator 2026
• ai-mocks  52★ · Kotlin
  🤖 AI-Mocks is a Kotlin-based toolkit for mocking and testing LLM APIs with real streaming and SSE support. Simulate OpenAI, Anthropic, Gemini, Ollama, and A2A services locally for reliable integration testing.
• agentic-commerce-skills-plugins  34★ · Python
  Skills & plugins for agentic commerce : UCP, ACP, AP2, A2A, WebMCP, Magento 2, BigCommerce, WooCommerce
• vaaya-mcp  30★ · Shell
  Vaaya MCP server — pay-per-call agent superpowers: media & video generation, product demo videos, web search & scraping, deep/market research, GTM & sales enrichment, code sandboxes, browser automation, email, memory. No API keys.
• skillmaxxing  26★ · Shell
  A phase-aware operating system for coding agents that helps them explore, ship, harden, and verify without losing the plot.
• tap  20★ · TypeScript
  Cross-vendor agent-to-agent protocol — Claude, Codex, and Gemini communicate via file-based P2P messaging.
• agorio  13★ · TypeScript
  The open-source toolkit for building AI commerce agents using UCP and ACP protocols
• awesome-agent-payments-protocol  12★ · HTML
  🚀 Curated resources for Google's Agent Payments Protocol (AP2), A2A & x402 — blogs, videos, repos & specs. Contributions welcome!
• agent-payment-protocols  9★
  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.
• xcatcher-mcp-manifest  9★ · Python
  Agent-first Remote MCP for X (Twitter) batch crawling with x402 USDC top-up (Base/Solana). Includes OpenAPI + copy-paste ADK/curl E2E examples.
• ap2java  7★ · Java
  A Java implementation of Google's Agent Payments Protocol (AP2) built on top of a2ajava.

Google vs other protocol & standards

On mpp.best

Google’s own repositories

Matched from our directory by GitHub org (google, google-agentic-commerce, a2aproject).

A

a2a-x402

⭐ 541 · Python

The A2A x402 Extension brings cryptocurrency payments to the Agent-to-Agent (A2A) protocol, enabling agents to monetize their services through on-chain payments. This extension revives the spirit of HTTP 402 "Payment Required" for the decentralized agent ecosystem.

A

a2a-go

⭐ 421 · Go

Golang SDK for A2A Protocol

Related companies

Coinbase

x402

Stripe

ACP

OpenAI

ACP