AWS
Amazon Web Services supports x402 for machine-to-machine payments in the cloud, enabling AI agents and services to transact seamlessly using the HTTP 402 payment protocol.
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Ecosystem
Discover innovative projects, tools, and applications built by our growing community of partners and developers leveraging x402 technology.
Cloudflare
Cloudflare co-founded the x402 Foundation with Coinbase and provides native x402 support in Cloudflare Workers and AI Agents, enabling serverless HTTP payment flows at the edge.
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Exa
Exa is an AI-native search engine that provides high-quality web data through its API, enabling AI agents and applications to search and retrieve content from the web.
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Nansen
Nansen uses x402 to monetize access to their blockchain analytics platform, enabling AI agents and developers to pay for on-chain intelligence and wallet analytics using stablecoins.
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Stripe
Stripe has integrated x402 to enable stablecoin payments for internet commerce, allowing businesses to accept USDC payments natively via the HTTP 402 standard.
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Venice
Venice is a private and permissionless AI platform that provides access to open-source AI models, enabling uncensored inference, image generation, and code assistance without data retention.
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Infrastructure & Tooling
0x402.ai
The Premier Cloud Infrastructure for x402. Empowering anyone to become an x402 Facilitator in seconds with dedicated domains and isolated environments, accelerating the growth and quality of the ecosystem.
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1Shot API
A general purpose fascilitator to monetize any n8n workflow with your favorite ERC-20 token.
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402104
Generate expirable, paywalled links to private ANS-104 DataItems on Arweave. Compatible with both S3 and ANS-104 data standards.
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Agently
The way AI coordinates and transacts. Agently is the routing and settlement layer for your agent economy.
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Alchemy
Alchemy integrates x402 to enable monetized access to their blockchain developer platform, allowing AI agents and applications to pay for RPC calls and web3 APIs using stablecoins.
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AltLayer
AltLayer provides an x402 suite including x402 gateway, facilitator, decentralized agent hosting autonome, etc.
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ampersend
A wallet for agents and a dashboard for humans. ampersend is a management platform for agent payments and operations, it abstracts crypto complexities while giving automation, control, and observability for agent-to-agent interactions.
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Atomic Rail
A Web3 toolkit for building paid APIs that you actually own. It uses the x402 protocol to send payments directly to your wallet—no middlemen or banks. You can change your prices or manage your endpoints from a dashboard and see the updates in production instantly, without ever redeploying your code.
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Browserbase
Browserbase integrates x402 to monetize headless browser infrastructure, enabling AI agents to pay for cloud browser sessions using stablecoins.
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Cascade
Revenue distribution infrastructure for Solana and Base. Split payments between contributors, partners, and platforms.
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ClawPay MCP
Open-source, non-custodial x402 MCP payment layer for AI agents. Agents sign transactions locally with no custodial infrastructure required. Supports x402 V2 sessions, spend limits, and multi-chain payments.
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CodeNut
A Web3 vibe-coding platform for building and deploying x402-enabled applications and agents.
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DappLooker AI
DappLooker offers unified on-chain and market intelligence APIs with native x402 support, enabling seamless crypto-based pay-per-call access for agents, bots, and apps.
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Daydreams Router
Daydreams router provides x402 enabled LLM inference for agents and applications. All major providers are supported. Build the future of nanoservices.
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EntRoute
Machine-first API discovery for AI agents. Ranked, verified x402 endpoints with semantic intent resolution, continuous verification probes, MCP server, and TypeScript SDK.
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Faremeter
A lightweight OSS x402 framework powered by client-, middleware-, and server-side plugins ensuring maximum composability and extensibility.
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Fluora
Fluora is a MonetizedMCP marketplace, enabling AI agents to autonomously find and purchase services. Payments are powered by x402
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FluxA
FluxA provides permissionless deferred payment rails for x402. It enables fast, parallel stablecoin micropayments with on-chain batch settlement, bringing internet-native payments to scale.
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Foldset
Foldset lets anyone gate any API, MCP, URL, and more behind x402 micropayments. We provide the infrastructure layer for free: wallet provisioning, reverse proxy SDKs, AI-only blocking, analytics, and fiat off-ramps. Just add a middleware or reverse proxy and configure everything from our dashboard.
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Freepik
Freepik integrates x402 to enable pay-per-use access to their design assets and AI image generation APIs, allowing agents and developers to pay with stablecoins.
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Heurist Mesh
Heurist Mesh provides a library of composable crypto skills for any AI agent. Equip your AI with expert crypto analysis abilities, from tracking whale wallets to spotting trending new tokens to analyzing onchain markets with full support for MCP and the X402 payment standard.
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Hyperbrowser
Hyperbrowser integrates x402 to enable pay-per-use browser automation for AI agents, allowing programmatic web access with native stablecoin payments.
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ICPAY
Crypto payments SDK and widgets for websites, apps, and AI agents.
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KAMIYO
AI agent orchestration platform with native x402 payment protocol support via ShadowWire, enabling autonomous agent-to-agent and agent-to-service micropayments on Solana.
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Kobaru
Kobaru provides a transparent proxy layer that allows vendors to add an x402 paywall to any existing API without changing a single line of code. It acts as a critical infrastructure bridge, offering high-throughput processing and a unique settlement layer that supports both crypto (Solana) and fiat currency.
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Latinum Agentic Commerce
An open-source MCP wallet and facilitator that agents can use to pay 402 payment requests.
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Locus
An MCP-enabled wallet that allows you to easily control your agents spending and auto generates tools for every x402 endpoint you use.
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MCP Server Example
A reference implementation MCP server and wallet to call x402 endpoints. Explore the code and run your own server.
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Meson x402
Chrome extension to connect EVM & Solana wallets, test x402 interfaces, perform payments, and generate X Payment Headers
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Messari
Messari leverages x402 to gate access to their professional-grade crypto intelligence and research APIs, enabling pay-per-use access to on-chain data and market analytics.
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Mogami java server SDK (Spring boot)
The Mogami Java Server SDK lets you turn any endpoint of your spring application into a pay-per-call API using the x402 protocol.
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Nevermined
Infrastructure for AI agent payment processing and settlement. Handles payment validation, cost tracking, and multi-model support.
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Node Servers (Hono, Express, Advanced)
Reference x402 server implementations in Node.js using Hono and Express, plus an advanced example with dynamic pricing and complex logic.
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OMATrust: x402 Reputation
Decentralized reputation for x402 resource servers. Use x402 signed offers and receipts as cryptographic proof-of-interaction in on-chain EAS attestations.
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OOBE Protocol & Synapse
Decentralized protocol for AI agent identity, discovery, and reputation on Solana. Agents register on-chain via indexed PDAs, publish capabilities, and are discovered trustlessly. Synapse, its TypeScript SDK, enables agent registration, transaction building, and x402 micropayments — each agent stores an x402Endpoint in its PDA for automatic per-call payments with SOL or USDC.
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PEAC Protocol
Cryptographic receipt layer for x402 payments. On success, return a signed PEAC-Receipt header that binds payment proof to the delivered response and policy, verifiable offline.
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PredictOS
The leading open-source framework for deploying AI agents and trading bots for prediction markets. Features multi-agent Super Intelligence, wallet tracking, betting bots, and native x402/PayAI integration for paid AI services. Bring your own data, models, and strategies.
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Proxy402
Turn your URLs into paid content. Set a price, share your link, and collect payments instantly. By Fewsats.
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px402 by PRXVT
Privacy Preserving x402 Payments, using zero-knowledge proofs and shielded pools, hiding the sender's identity and transaction history.
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QuickNode
A Ruby gem that simplifies the process of adding paywalls to API routes in Ruby on Rails applications.
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solana-pay-x402
HTTP 402 payment middleware for Solana (Express + Next.js). Supports x402 v2 programmatic flows and Solana Pay QR code transactions from a single integration.
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Stellar
Stellar supports x402 as a payment protocol for AI agents and internet commerce, enabling stablecoin payments on the Stellar network.
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x402-secure
Real-time risk control for AI-driven x402 payments. x402-secure is specifically designed for transactions involving autonomous AI agents. It transparently integrates pre-payment AI agent risk checks and comprehensive signal collection into the standard x402 flow to prevent disputes and fraud.
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thirdweb
Server side TypeScript SDK and facilitator HTTP API supporting 170+ chains and 4000+ tokens.
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TokenMesa
Tokenmesa helps businesses launch service backed token based on x402. Allowing users to pay through x402 with any token and auto convert to service token to reinforce token value.
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tollbooth
Open-source x402 API gateway. Turn any API into a paid x402 API with a single YAML config. Dynamic pricing, multi-upstream proxy, SSE streaming, lifecycle hooks, and Docker support.
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x402-go
Go implementation of the x402 protocol for building payment-gated APIs and services
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X402 Kit
A fully modular Rust SDK for building complex X402 payment integrations.
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x402 Market
A Permissionless Launchpad for x402-Enabled Services, Powered by the AWE Network
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x402 Playground
An interactive testing environment for the x402 payment protocol. Connect to any x402-enabled endpoint, test local paywalls, search the Bazaar discovery layer, and explore HTTP 402 payment flows. Built by Quicknode.
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x402-watch
A lightweight health monitoring tool for public x402-enabled APIs. It validates 402 responses, PAYMENT-REQUIRED headers, and optionally performs full payment lifecycle verification (402 → signing → 200 OK) using testnet USDC on Base Sepolia.
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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.
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x402lint
Validate x402 payment configurations. CLI, SDK, website, and Claude skill for checking configs, addresses, networks, and amounts.
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x402list.fun
Discover and analyze the x402 services ecosystem. Search paid API providers by category, compare pricing and transaction volume, view reliability metrics across blockchain networks. Your comprehensive directory for x402 integration.
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x402station
Leading x402 analytics platform with advanced UI for monitoring x402 services. Track real-time performance metrics, x402 API analytics, and service reliability with our comprehensive x402 UI dashboard.
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zauth
Trust infrastructure for autonomous commerce. Continuous endpoint verification, AI-powered code analysis (RepoScan), real-time monitoring dashboards, automatic refund execution, and a developer SDK. Ensures agents can safely discover and pay for x402 services.
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