---
type: entity
entity_type: organization
name: x402 Foundation
status: active
founded: 2026-04-02
parent_organization: Linux Foundation
domain: internet-finance
---

# x402 Foundation

**Type:** Open-source foundation  
**Founded:** April 2, 2026  
**Parent:** Linux Foundation  
**Governance:** Traditional open-source foundation model (vendor-neutral, community-driven)

## Overview

The x402 Foundation governs the x402 protocol — a payment standard enabling AI agents, APIs, and websites to negotiate and settle payments over HTTP without card networks. The protocol converts the dormant HTTP 402 "Payment Required" status code into a machine-readable payment handshake.

## Protocol Function

- Enables autonomous AI agents to transact for resources (API calls, compute, data) without human intermediation
- Machine-readable payment negotiation over HTTP
- Originally developed by Coinbase, Cloudflare, and Stripe
- Coinbase contributed the protocol to Linux Foundation at launch

## Governance Model

- Standard Linux Foundation open-source governance
- NOT futarchy, NOT token voting
- Explicitly designed to prevent corporate capture (including by Coinbase)
- No steering committee details disclosed at launch

## Founding Members (22)

Adyen, AWS, American Express, Base, Circle, Cloudflare, Coinbase, Fiserv, Google, KakaoPay, Mastercard, Microsoft, Polygon Labs, Shopify, Solana Foundation, Stripe, thirdweb, Visa, and others

## Market Position

- 49% of emerging x402 micropayment infrastructure runs on Solana (as of April 2026)
- Circle (USDC issuer) is a founding member, creating centralized trust dependency at payment layer

## Sources

- Linux Foundation: https://www.linuxfoundation.org/press/linux-foundation-is-launching-the-x402-foundation-and-welcoming-the-contribution-of-the-x402-protocol
- Decrypt: https://decrypt.co/363173/coinbase-linux-foundation-launch-x402-foundation
- The Block: https://www.theblock.co/post/396155/tech-crypto-giants-to-help-steward-coinbases-neutral-x402-payments-protocol-under-linux-foundation

## Timeline

- **2026-04-02** — x402 Foundation launched under Linux Foundation with 22 institutional founding members including Google, AWS, Microsoft, Visa, Mastercard, Stripe, Coinbase, and Circle