HTTP 402 Payment Required middleware — monetize AI agent APIs with per-call USDC micropayments via x402 protocol (Stripe + Base)
x402-payment-gateway is an early-stage JavaScript project in the AI payments / x402 ecosystem, focused on ai-agents, base-network, http-402, micropayments. It currently has 0 GitHub stars and 0 forks, and sits alongside related tools like gold-402, x402-toolkit, x402-pay, APIbase, dna-x402, piprail.
⚡ The gold standard for x402 resources. 300+ projects, SDKs, tools, facilitators, and ecosystem data for the HTTP 402 Payment Required protocol. Curated by 24K Labs.
Paywalled HTTP tools for agents using x402 (HTTP 402): auto-handle 402 → pay → retry with a server middleware, agent-friendly client, and examples
Open-source x402 payment processor for AI agents. Sub-400ms settlement on Solana + 7 EVM chains. Let LLMs pay for APIs programmatically with USDC. npm: nory-x402
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x402 (HTTP 402 Payment Required) SDK + MCP server: let any API charge for itself and any AI agent pay for itself, USDC & stablecoins across EVM, Solana & 8 more chain families, in a couple of lines. Backendless, no fee, self-custodial, paid straight to your wallet. TypeScript, MIT.
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The AI agent with a wallet — spends USDC autonomously to get real work done. Apache-2.0, TypeScript.
DePIN for Vintage Hardware — Proof-of-Antiquity blockchain where old machines outmine new ones. AI-powered hardware fingerprinting, 15+ CPU architectures, Solana bridge (wRTC). $0 VC.
🚀 Curated list of x402 resources: HTTP 402 Payment Required protocol for blockchain payments, crypto micropayments, AI agents, API monetization. Includes SDKs (TypeScript, Python, Rust), examples, facilitators (Coinbase, Cloudflare), MCP integration, tutorials. Accept USDC payments with one line of code. Perfect for AI agent economy.
Client SDK for the Vybe x402 API. Pay-per-call USDC over HTTP and prepaid-credit WebSocket streaming for Vybe's Solana analytics API. Built for AI agents.
The financial operating system for AI agents. A single HTTP client that intercepts '402 Payment Required', routes across x402, L402, and MPP, persists credentials as recoverable assets, enforces per-envelope budgets, and emits a structured trace.