Infrastructure & Tooling

0x402.ai

Premier Cloud Infrastructure enabling anyone to become x402 Facilitator

1Shot API

General purpose facilitator to monetize n8n workflows with ERC-20 tokens

402104

Generate expirable paywalled links to private Arweave DataItems

AltLayer

x402 suite including gateway, facilitator, decentralized agent hosting

ampersend

Wallet for agents and dashboard providing payment management platform

Cascade

Revenue distribution infrastructure for Solana and Base

CodeNut

Web3 vibe-coding platform for building x402-enabled applications

DappLooker AI

Unified on-chain and market intelligence APIs with native x402 support

Daydreams Router

x402 enabled LLM inference supporting all major providers

Faremeter

Lightweight OSS x402 framework with client, middleware, server plugins

Fluora

MonetizedMCP marketplace enabling agents to autonomously purchase

FluxA

Permissionless deferred payment rails with batch settlement

Heurist Mesh

Library of composable crypto skills for AI agents with MCP support

Latinum Agentic Commerce

Open-source MCP wallet and facilitator for agents

Locus

MCP-enabled wallet with agent spending control and auto-generated tools

MCP Server Example

Reference implementation MCP server and wallet for x402 endpoints

MCPay

Build and monetize MCP servers

Meridian

Multi-chain facilitator with developer-first features

Meson x402

Chrome extension connecting wallets, testing interfaces, generating headers

Mogami Java Server SDK

Java Server SDK turning Spring endpoints into pay-per-call APIs

Nevermined

Infrastructure for AI agent payment processing and settlement

PEAC Protocol

Cryptographic receipt layer binding payment proof to delivered response

PredictOS

Open-source framework for AI agents and trading bots with x402 integration

Proxy402

Turn URLs into paid content with instant payment collection

QuickNode x402 Rails

Ruby gem simplifying paywall addition to Rails API routes

t54 x402-secure

Real-time risk control for AI-driven x402 payments with fraud prevention

TokenMesa

Helps businesses launch service-backed tokens based on x402

X402 Kit

Fully modular Rust SDK for complex x402 payment integrations

x402 Market

Permissionless Launchpad for x402-Enabled Services

Express middleware for adding 402 to any API

x402jobs

Visual workflow builder for x402. Chain paid resources, set your markup, publish as an endpoint anyone can pay to run. Build once, earn on every call.

x402lint

Validate x402 payment configurations. CLI, SDK, website, and Claude skill for checking configs, addresses, networks, and amounts.

npx skills add rawgroundbeef/x402lint

x402list.fun

Discover and analyze x402 services ecosystem with pricing and metrics

x402r

Non-custodial refund and arbitration protocol for x402

x402scan

Block explorer for x402 transactions

x402station

Advanced analytics platform monitoring x402 services and performance

ZeroPay

Open crypto payment gateway for humans and AI agents

zkStash

Permissionless Shared Memory Layer for agentic economy