Axios & Fetch Clients
Reference TypeScript clients for x402 using both Axios and Fetch. Easily integrate x402 payments into your own applications.
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Ecosystem
Ecosystem
Discover innovative projects, tools, and applications built by our growing community of partners and developers leveraging x402 technology.
Client-Side Integrations
Mogami java client SDK
The Mogami Java Client SDK makes it easy to bring x402 payments into your Java application
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Nuwa AI
Nuwa AI introduces xNUWA, a user-friendly AI client that connects you to x402-compatible AI services.
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thirdweb
Client side TypeScript SDK and HTTP API to pay for any x402 compatible endpoint from your apps or agents.
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AI Frens by Treasure
AI Frens lets anyone launch an x402-compatible AI character token (“Fren”) and grow it with a community. With their x402-compatible Fren coin, fans can stake them for perks, send tips to their AI Fren, and pay for fun services x402 services provided by the AI character.
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Services/Endpoints
AEON
The omnichain settlement layer that enables AI agents to seamlessly pay millions of real-world merchants across SEA, LATAM, and Africa — powered by x402 and USDC.
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AiMo Network
Through a permissionless API, pay-per-inference via x402, and agent-native interface, AiMo Network connects humans, AI agents, and service providers without censorship, borders, or gatekeepers.
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AIsa
A resource marketplace aggregating core assets such as LLMs, data APIs based on the HTTP 402 standard.
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AurraCloud
AI agents hosting and Tooling Platform, with MCP, smartWallets, OpenAI API compatibility and X402 support.
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Firecrawl
Firecrawl is a web scraping API that allows you to turn websites into LLM-ready data.
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Gloria AI
Gloria is an AI-powered provider of real-time, high-signal, customizable news data to AI agents and agent systems that need structured signals for any use case.
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Grove API
A unified API you can /fund using x402 to /tip anyone on the internet.
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Heurist Deep Research
The first Web3 native AI research platformpowered by x402. Users can pay per-query with USDC to get comprehensive multi-page research reports generated by AI agents, with no API keys or subscriptions required.
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Imagine
Coin it once, remix forever. Use our API to generate media using templates
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Neynar
Powering social data on Farcaster for agents and humans. Get cast info and more.
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Onchain
Onchain is x402's Intelligent Intermediary Layer for Aggregating Facilitators.
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Otto AI Agent Swarm
AI-powered crypto intelligence for Agents and Pros. Real-time crypto news, token analysis, market alpha signals, and AI tools via USDC on Base.
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Pinata
Account-free IPFS uploads and retrievals using crypto payments, powered by x402. Pay for private or public IPFS storage and retrieval without an account or API key.
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Proofivy
Attestation and x402 paywalled publishing via a WordPress plugin or custom tools for publishers. iPhone app offering attestation and x402 publication for anyone.
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Questflow
The orchestration layer for the multi-agent economy. Orchestrate multiple AI agents to research, take action and earn rewards on-chain, autonomously.
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Snack Money API
Micropayment platform for X, Farcaster, baseapp and verifiable identities.
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tip.md
A crypto tipping service that enables AI assistants to help users send cryptocurrency tips to content creators directly from their chat interface. USDC tips via MCP are powered by x402. The MCP service allows for checking wallet types and preparing cryptocurrency tips for users/agents to complete.
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Infrastructure & Tooling
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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AltLayer
AltLayer provides an x402 suite including x402 gateway, facilitator, decentralized agent hosting autonome, etc.
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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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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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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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Latinum Agentic Commerce
An open-source MCP wallet and facilitator that agents can use to pay 402 payment requests.
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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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Mogami java server SDH (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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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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Proxy402
Turn your URLs into paid content. Set a price, share your link, and collect payments instantly. By Fewsats.
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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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Learning & Community Resources
Facilitators
CDP Facilitator
Best-in-class x402 facilitator. Fee-free USDC settlement on Base Mainnet. KYT/OFAC checks on every transaction.
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Corbits
A production grade facilitator which supports multi-network, multi-token, multi-payment schemes.
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Mogami facilitator
Facilitator running on base (testnet & mainnet) with a development console - You can run it as a Docker image within your own infrastructure, or use our always-on hosted facilitator online
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OpenX402.ai Facilitator
The first permissionless, gasless and omnichain x402 facilitator that any x402 server can use without login
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PayAI Facilitator
Accept x402 payments on all networks including Avalanche, Base, Polygon, Sei, Solana, and more! Get started in less than 1 minute. Supports all tokens. No API Keys required.
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Treasure Facilitator
Treasure x402 Facilitator available on Base and Base Sepolia. Supports EIP-3009 compliant tokens including USDC, MAGIC, SMOL, MIO, AI Frens tokens, and more.
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x402.org Facilitator
Default testnet facilitator for x402
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x402.rs Facilitator
Independent, open-source facilitator in Rust. Easy to self-host, extend to new networks, or use via our hosted instance.
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