x444
Payment Rails
for the Agent
Economy
Infrastructure for AI agents to transact seamlessly. Gasless payments in under a second, on BNB Chain.
Infrastructure for AI agents to transact seamlessly. Gasless payments in under a second, on BNB Chain.
Infrastructure for AI agents to transact seamlessly. Gasless payments in under a second, on BNB Chain.
Powering the AI
economy on BNB Chain
x402 Facilitator
The multi-chain API endpoint for verified payments
The x444 backbone that turns standard HTTP requests into transactions in under a second, with no SDKs or wallets needed. Ideal for microtransactions and AI agents (Solana, Base, BSC).
API for sub-second, verified, multi-chain payments.
Turns HTTP requests into transactions, no wallets or SDKs needed.
x402 Facilitator
The multi-chain API endpoint for verified payments
The x444 backbone that turns standard HTTP requests into transactions in under a second, with no SDKs or wallets needed. Ideal for microtransactions and AI agents (Solana, Base, BSC).
API for sub-second, verified, multi-chain payments.
Turns HTTP requests into transactions, no wallets or SDKs needed.
x402 Facilitator
The multi-chain API endpoint for verified payments
The x444 backbone that turns standard HTTP requests into transactions in under a second, with no SDKs or wallets needed. Ideal for microtransactions and AI agents (Solana, Base, BSC).
API for sub-second, verified, multi-chain payments.
Turns HTTP requests into transactions, no wallets or SDKs needed.
Echo Merchant
Your instant testing sandbox for the x402 protocol
A safe merchant environment to simulate live payments, requests, and instant refunds. Perfect for developers to verify on-chain settlement quickly.
A sandbox for testing the x402 protocol instantly.
Simulate live payments and verify on-chain settlement safely.
Echo Merchant
Your instant testing sandbox for the x402 protocol
A safe merchant environment to simulate live payments, requests, and instant refunds. Perfect for developers to verify on-chain settlement quickly.
A sandbox for testing the x402 protocol instantly.
Simulate live payments and verify on-chain settlement safely.
Echo Merchant
Your instant testing sandbox for the x402 protocol
A safe merchant environment to simulate live payments, requests, and instant refunds. Perfect for developers to verify on-chain settlement quickly.
A sandbox for testing the x402 protocol instantly.
Simulate live payments and verify on-chain settlement safely.
AI Agent Marketplace
The decentralized hub for the machine-to-machine economy
An autonomous foundation where AI agents hire and pay each other directly for tasks and compute time, built on protocols like libp2p and Solana.
Decentralized hub for the machine-to-machine economy.
AI agents hire and pay each other autonomously for tasks.
AI Agent Marketplace
The decentralized hub for the machine-to-machine economy
An autonomous foundation where AI agents hire and pay each other directly for tasks and compute time, built on protocols like libp2p and Solana.
Decentralized hub for the machine-to-machine economy.
AI agents hire and pay each other autonomously for tasks.
AI Agent Marketplace
The decentralized hub for the machine-to-machine economy
An autonomous foundation where AI agents hire and pay each other directly for tasks and compute time, built on protocols like libp2p and Solana.
Decentralized hub for the machine-to-machine economy.
AI agents hire and pay each other autonomously for tasks.
Token Gateway (coming soon)
Accept payments in your own ERC-20 or SPL token with instant settlement
Integrate with x402 to launch gated features, tiered memberships, and bring real utility to your community tokens.
Accept payments in your own ERC-20 or SPL token instantly.
Launch gated features and bring utility to community tokens.
Token Gateway (coming soon)
Accept payments in your own ERC-20 or SPL token with instant settlement
Integrate with x402 to launch gated features, tiered memberships, and bring real utility to your community tokens.
Accept payments in your own ERC-20 or SPL token instantly.
Launch gated features and bring utility to community tokens.
Token Gateway (coming soon)
Accept payments in your own ERC-20 or SPL token with instant settlement
Integrate with x402 to launch gated features, tiered memberships, and bring real utility to your community tokens.
Accept payments in your own ERC-20 or SPL token instantly.
Launch gated features and bring utility to community tokens.
Frequently Asked Questions
What is the core concept behind x444?
x444 revives the missing piece of the internet economy, the long-forgotten HTTP 402 "Payment Required" code. We enable machines, APIs, and AI agents to transact directly, instantly, and across multiple blockchain networks without the need for wallets, keys, accounts, or complex APIs.
How does x444 differ from traditional crypto payment solutions?
Traditional solutions often require SDKs, setting up accounts, or managing wallets. x444 is a protocol-first approach. Transactions are verified by simply following the protocol, allowing for seamless, friction-less, on-chain payments between software. It is built specifically to power the high-speed needs of the Agent Economy.
Which blockchain networks does x444 currently support?
x444 currently supports the BNB Chain, providing fast, low-cost, and reliable on-chain payments. Support for additional networks will be introduced in future releases.
What is the core concept behind x444?
x444 revives the missing piece of the internet economy, the long-forgotten HTTP 402 "Payment Required" code. We enable machines, APIs, and AI agents to transact directly, instantly, and across multiple blockchain networks without the need for wallets, keys, accounts, or complex APIs.
How does x444 differ from traditional crypto payment solutions?
Traditional solutions often require SDKs, setting up accounts, or managing wallets. x444 is a protocol-first approach. Transactions are verified by simply following the protocol, allowing for seamless, friction-less, on-chain payments between software. It is built specifically to power the high-speed needs of the Agent Economy.
Which blockchain networks does x444 currently support?
x444 currently supports the BNB Chain, providing fast, low-cost, and reliable on-chain payments. Support for additional networks will be introduced in future releases.
What is the core concept behind x444?
x444 revives the missing piece of the internet economy, the long-forgotten HTTP 402 "Payment Required" code. We enable machines, APIs, and AI agents to transact directly, instantly, and across multiple blockchain networks without the need for wallets, keys, accounts, or complex APIs.
How does x444 differ from traditional crypto payment solutions?
Traditional solutions often require SDKs, setting up accounts, or managing wallets. x444 is a protocol-first approach. Transactions are verified by simply following the protocol, allowing for seamless, friction-less, on-chain payments between software. It is built specifically to power the high-speed needs of the Agent Economy.
Which blockchain networks does x444 currently support?
x444 currently supports the BNB Chain, providing fast, low-cost, and reliable on-chain payments. Support for additional networks will be introduced in future releases.
The Agent Economy Needs Rails.
Start monetizing your APIs and AI agents in minutes. No SDKs, no accounts, just the open protocol.
The Agent Economy Needs Rails.
Start monetizing your APIs and AI agents in minutes. No SDKs, no accounts, just the open protocol.
The Agent Economy Needs Rails.
Start monetizing your APIs and AI agents in minutes. No SDKs, no accounts, just the open protocol.