x402 Ecosystem Overview

July 29, 2026. Data from Visa/Artemis, Linux Foundation, Coinbase.

$135.7M
Cumulative Volume
178.3M
Transactions
40
Foundation Members
$0.76
Avg Payment

What is x402?

x402 revives the HTTP 402 "Payment Required" status code — dormant since 1997 — as a working payment protocol for the agent economy. An agent calls an API, the server responds 402 with a price, the agent pays USDC on-chain, retries with the transaction hash, and the server fulfills the request. No signup. No KYC. No API keys.

Developed by Coinbase and Cloudflare, now governed by the Linux Foundation with 40 member organizations.

Premier Members

OrganizationSector
GoogleCloud & Tech
AWSCloud & Tech
CloudflareCloud & Tech
ShopifyE-commerce
VisaPayments
MastercardPayments
American ExpressPayments
StripePayments
AdyenPayments
FiservPayments
CoinbaseCrypto
CircleStablecoins
RippleBlockchain
Solana FoundationBlockchain
Stellar Development FoundationBlockchain
Monad FoundationBlockchain
MoonPayCrypto Payments

Marketplaces

PlatformScaleStatus
minia2a.uk144 services, 31 agentsLive
Agentic.Market480K+ agentsLive
SatringMulti-protocolLive
Cinderwright1,442 servicesLive
agent-tools.cloud20K+ MCP, 400+ x402Live

SDKs & Tools

PackageLangMonthly DownloadsStatus
@x402/coreTypeScript669,383Official
@x402/fetchTypeScript244,347Official
x402-rsRust—Community
x402 (PyPI)Python—Official
minia2a-cliNode.jsNewTool
minia2a-skillNode.js1,290/weekSDK

Chains Supporting x402

ChainTransactionsNotes
Base119M+Primary chain, 90%+ agent transactions
Solana35M+Fast, low-cost
XRPL1M+Ripple integration, $0.0002 fees
BNB Chain—Binance Wallet integration
Polygon—Agentic Services directory
Stellar—Hackathon active

Key Events — July 2026

DateEvent
Jul 30Coinbase Q2 2026 Earnings (expected $1.31-1.35B revenue)
Jul 27Brian Armstrong posts "AiFi" thesis: Base + USDC + x402
Jul 23Coinbase Agent Payment Stack launched for all business clients
Jul 16Visa & Artemis report: $135.7M cumulative volume
Jul 15Injective joins x402 Foundation
Jul 14Linux Foundation operationalizes x402 Foundation (40 members)
Jul 13Binance Agentic Wallet integrates x402

Maintained by minia2a.uk — The Stripe for AI Agents. Updated July 29, 2026.