AI agents can plan the work and Circle Agent Wallet helps them pay for it. This tutorial walks through how to: → Create your first wallet → Fund it with USDC → Pay for services → Return receipts as part of the task

Earlier in my career at @braintree, I remember when the company crossed 1 billion transactions. I remember how big that milestone felt, how we celebrated, and what it felt like to be part of something so great. Fast forward several years, and Blockradar has now crossed a billion milestone of our own: our first $1B in transaction volume. While the measures are different, the feeling brought me right back to that moment 10 years ago. But with this milestone, I know every customers behind the number. I know the products they are building. Every market they serve. And all of the work our team has put in to make it happen. I'm incredibly proud of our team and grateful to every customer and partner who has trusted us along the way. You can check out the volume here:

Every x402 paywall on Proceeds includes @circle Nanopayments. An agent can pay from an onchain wallet or from a Circle Gateway balance. Same 402. Two schemes. Sell to agents

Welcome to Arc 101. Episode 1 breaks down the fundamentals of Arc, from stablecoin-native infrastructure and core network primitives to the developer building blocks available through Circle. If you’re getting ready to build on Arc, this is where to start.

Gateway now supports ERC-1271 for transfer authorization. That means smart contracts and smart wallets can authorize Gateway transfers through signature validation, without relying on an EOA delegate. In this Release Notes episode, learn about: → Setting contractSigner: true on a Gateway transfer request → How Gateway validates burn-intent signatures through ERC-1271 → Limits of read-only validation

Esto… lo cambia todo TODO. Esto es lo que rompe el gran problema de permitir que la buena UX/UI y web3 sean por fin compatibles al siguiente nivel. 🧘🏻🦖⚡️👊 well done Ahora solo falta @arc en mainnet

x402 went from almost zero to more than 100M transactions on Base in ~9 months. Actually insane. So here are some of the key players in agentic commerce and what each one does ↓ 💳 Payment protocols & rails • @base | Leading settlement network for x402 activity • @mpp | Payment standard supporting stablecoin payment rails • @solana | Built for discovering and purchasing APIs • @circle | Enables tiny, gas-free USDC payments through Nanopayments • @Superfluid_HQ | Streams continuous onchain payments in real time 🤖 Interfaces & applications • @heysealai | Marketplace for agent-accessible workflows • @poncho_ai | Helps agents discover and access paid services • @clawpumptech | Launches autonomous agents for onchain markets • @daydreamsagents | Builds Task Market for agent-to-agent work • @PaymanAI | Deploys AI agents that execute banking transactions ⚙️ Payment infrastructure & facilitators • @CoinbaseDev | Verifies and settles x402 payments onchain • @stripe | Lets businesses accept machine payments through MPP and x402 🔎 Service discovery • @x402scan | Tracks x402 services, payments and ecosystem activity • @monid_ai | Connects agents to a catalog of pay-per-use tools • @orthogonal_sh | Lets agents discover, call and pay for APIs 🧩 Headless services • @trydrip | Lets agents pay premium financial writers for sourced answers • @ExaAILabs | Provides pay-per-request web search and content retrieval • @p0 | Provides paid Search, Extract and Deep Research APIs • @BlockRunAI | Provides access to AI models, data and compute 🛠️ Developer tooling • @wevm_dev | TypeScript SDK for integrating MPP payments • @agentcashdev | One balance for accessing multiple paid APIs • @apipaywall | Adds one payment gate supporting x402, MPP and Circle Nanopayments • @contofinance | Adds budgets, permissions and spending controls • @catena_labs | Built open identity and payment standards • @ampersend_ai | Adds policies, compliance, routing and audit trails to agent payments 🔐 Wallets, identity & spending controls • @crossmint | Provides agent wallets and programmable payments • @Nevermined_ai | Adds delegated spending and settlement for agent payments • @trySkyfire | Provides agent identity, authentication and payment infrastructure

MPP-I: Machine Payments Protocol for Inference Read the paper on @huggingface: MPP-I is a @mpp compatible, payment profile for inference. It defines the inference specific payment lifecycle inside an MPP compatible challenge, credential, receipt.

A new customer is forming for API providers: autonomous agents. With x402 and Circle Agent Stack, agents can discover your API, pay per request in USDC, and use your service without a checkout page, account setup, or subscription. Turn your endpoint into an agent-ready service: