x402 Foundation Established: Solana and Giants Standardizing AI Payments

Linux Foundation, together with Coinbase, established the x402 Foundation. This step aims to standardize agent-based AI payments in crypto and fiat infrastructures. Blockchain giants like Solana Foundation are also included.

Founding Members of the x402 Foundation and $SOL Contribution

Google, Microsoft, Amazon Web Services, American Express, Mastercard, Visa, Cloudflare, Shopify, Stripe, Circle, Base, Polygon Labs, $SOL detailed analysis, Thirdweb and KakaoPay are among the foundation's founding members. Linux Foundation CEO Jim Zemlin emphasized the open-source nature of x402 by stating that the internet was built with open protocols. Coinbase stated that the protocol has gained a neutral and non-profit structure. Solana Foundation's participation strengthens the $SOL ecosystem for high-speed payments.

Source: Coinbasex402 Protocol: Automatic AI Payments with HTTP 402 and EIP-3009

The x402 protocol combines the HTTP 402 “Payment Required” status code with Ethereum Improvement Proposal 3009 (EIP-3009) to enable AI agents to transfer funds without manual approval. This enables micropayments on fast chains like $SOL. The protocol supports ERC-4337 account abstraction to minimize gas fees and becomes compatible with Solanas Proof-of-History mechanism.

Fluctuations in x402 Transaction Volume and $SOL Relationship

According to Dune Analytics data, the protocol's weekly transaction volume peaked at 13.7 million in November 2025, dropping to 29 thousand - 1.1 million in 2026. $SOL's high TPS (65,000+ ) can carry x402 traffic; Polygon Labs and Base's participation increases $ETH-$POL competition.

Weekly transactions via the x402 protocol since May 2025. Source: Dune Analytics$SOL Price Technical Analysis: Support and Resistance Levels

$SOL price $79.13, 24h -0.34%, RSI 37.43 (oversold), downtrend, Supertrend bearish, EMA20 $84.66. With the x402 news, R1 could be tested.

B2C2's $SOL Stablecoin Preference Strengthens x402

SBI Holdings' B2C2 platform selected Solana as the primary stablecoin network for institutional customers. This supports x402's fiat-crypto bridge; $SOL futures volume may increase. $SOL's low fees and speed are ideal for AI agent payments.

Long-Term Impact of the x402 Foundation on the $SOL Ecosystem

The foundation will make Web3 payments mainstream with open standards. $SOL Foundation's role heats up competition with $POL analysis, while $ETH EIP-3009 integration will offer hybrid solutions. Investors should monitor S1 support.