# Abstraxn > Identity, wallets, payments, and policy. One SDK for autonomous agents. Enterprise-grade embedded wallets and Web3 infrastructure built for Agentic AI. Abstraxn provides a unified Web3 and AI-agent infrastructure platform. The core stack — currently live — includes non-custodial embedded wallets (ERC-4337 / EIP-7702 smart accounts), a Bundler, a Paymaster for gas sponsorship and ERC-20 fee acceptance, and a cross-chain Relayer. Abstraxn is also building a set of agentic platform primitives currently in private testing and coming soon: an Agent Identity Layer (built on ERC-8004), an Agent Authorization layer (policy engine with spending caps and allowlists), a Discovery Layer (pre-integrated services via x402), and a Payments Layer (USDC stablecoin settlement with per-call pricing). Key concepts for understanding this site: - **ERC-4337**: Ethereum account abstraction standard. Abstraxn's Bundler and Paymaster implement this spec. - **EIP-7702**: Account-abstraction standard, live on Ethereum mainnet since the Pectra upgrade (May 2025), that lets EOAs temporarily behave as smart accounts. Supported in Abstraxn embedded wallets. - **ERC-8004**: Draft "Trustless Agents" standard defining on-chain registries for agent identity, reputation, and validation, with early mainnet deployments as of 2026. Used in Abstraxn's Identity Layer. - **x402**: HTTP 402-based micropayment protocol for per-call agent payments. Supported in Abstraxn's Payments and Discovery layers. - **Session keys**: Short-lived, narrowly-scoped signing credentials that let AI agents act within predefined limits without full wallet access. - **UserOperation**: The pseudo-transaction object submitted to ERC-4337 Bundlers instead of a native Ethereum transaction. ## Core Pages - [Home](https://abstraxn.com/): Overview of Abstraxn's AI-agent and Web3 infrastructure platform. - [Products](https://abstraxn.com/products): Full product catalog: infrastructure, Agent Kit, and agentic platform layers. - [Pricing](https://abstraxn.com/pricing): Pricing tiers and feature comparison for all Abstraxn plans. - [Blog](https://abstraxn.com/blogs): Technical blog covering account abstraction, agentic payments, and AI-agent infrastructure. - [Contact](https://abstraxn.com/contact-us): Contact the Abstraxn team. ## Infrastructure Products - [Embedded Wallets](https://abstraxn.com/products/embedded-wallets): Provision non-custodial embedded wallets for users and AI agents via passkeys, OAuth, and email. Multi-chain support for Ethereum, Base, Arbitrum, and Polygon. - [Bundler](https://abstraxn.com/products/bundler): Scale your Web3 app with Abstraxn's ERC-4337 Bundler. Aggregate UserOperations, ensure atomic execution, and manage account abstraction with deterministic gas estimates. - [Paymaster](https://abstraxn.com/products/paymaster): Sponsor gas fees or accept ERC-20 payments with Abstraxn's Paymaster. Set granular policies and per-agent rate limits for frictionless Web3 onboarding. - [Relayer](https://abstraxn.com/products/relayer): Submit signed transactions across Ethereum, Base, Arbitrum, and Polygon. 99.9% transaction success rates with automated retries and nonce recovery. - [Agent Interface](https://abstraxn.com/products/agent-interface): Roll out agents on Abstraxn and expose them via MCP to ChatGPT, Claude, Cursor, Hermes Agent, and any compatible host. Web3 tools, x402 payments, and tenant-scoped wallets in one server. - [Identity Layer](https://abstraxn.com/products/identity-layer): Register agents on ERC-8004 with verifiable ownership, public registration files, and global IDs. Multi-chain EVM identity linked to MCP and x402 discovery. - [Discovery Layer](https://abstraxn.com/products/discovery-layer): Search 50+ x402-monetized APIs via MCP. discover_services, get_service, and paid_fetch connect agents to the CDP Bazaar without hard-coding vendor URLs. - [Agent Authorization](https://abstraxn.com/products/kyi-agent-authorization): Set what an AI agent may spend, prove who it is, and check both before it pays. Know Your Intent turns a person's words into signed rules an agent cannot exceed. - [Payments Layer](https://abstraxn.com/products/payments-layer): x402 pay-per-call for MCP agents with network-aware facilitators: x402.org on testnet, Coinbase CDP on mainnet. Verify, settle on chain, and audit via paymentReceipt and tool-call logs. ## Developer Resources - [Documentation](https://docs.abstraxn.com/): Full SDK and API reference for integrating Abstraxn. - [Dashboard](https://dashboard.abstraxn.com/): Developer dashboard for managing wallets, policies, and billing. ## Blog Posts - [Know Your Intent (KYI): Agents Have an Identity Layer. They Have No Intent Layer.](https://abstraxn.com/blogs/know-your-intent-kyi): Know Your Intent (KYI) verifies what an AI agent is about to do, not just who it is. Why KYA repeats KYC, and why agents still have no equivalent of KYT. - [India's Agent Trust Layer: The Mandate Gap Nobody Has Filled](https://abstraxn.com/blogs/india-agent-trust-layer-upi-mandate-gap): India already has a law that says an agent's purchase is the user's act. What it does not have is a way to prove what the user authorised. Every mandate scheme so far is operated by a party with an interest in the outcome. That is the gap. - [Crypto Market Data Agent: Agentic AI Payments With CoinMarketCap x402](https://abstraxn.com/blogs/build-crypto-market-data-agent-abstraxn): No API key, no monthly plan, just a wallet and a signature. Here's how we wired an agent that pays CoinMarketCap a few cents in USDC every time it asks a question, and what our first real test against an empty wallet actually looked like. - [Build an AI Transaction Simulation Agent Using Abstraxn + Tenderly](https://abstraxn.com/blogs/build-tx-monitoring-agent-abstraxn): An AI transaction simulation agent traces every transaction ID back to a real answer: confirmed or not, would it succeed or not. This agent previews outcomes before signing and decodes failures after, with Tenderly doing the simulation work underneath. - [Trading Agent with Coinbase](https://abstraxn.com/blogs/build-trading-agent-abstraxn): A price check and a balance check are the easy part. Two guardrails run before Coinbase ever sees an order, and the agent never touches your real key. Here's how we wired it, bugs and all. - [Build a Web Research Agent with Abstraxn + Firecrawl](https://abstraxn.com/blogs/build-web-research-agent-firecrawl): Most research agents cite URLs they never opened. Here's how we built one that scrapes first, summarizes second, and ships from a repo you can clone in minutes. - [The Score Travels. The Reason It Was Earned Doesn't.](https://abstraxn.com/blogs/portable-reputation-portable-enforcement): Agent reputation registries are live and the data inside them is unusable. Portable reputation without portable enforcement is a category error. - [Every Rule Held. That Was the Problem.](https://abstraxn.com/blogs/every-rule-held-agent-reversibility): Agent payment rails inherited finality without reversal. Policy answers whether an action is permitted. Nothing answers whether it can be undone. - [Start Here: Build a Hello Wallet Agent with Abstraxn](https://abstraxn.com/blogs/build-hello-wallet-agent-abstraxn): Before you ship an AI research agent or a trading bot, prove the wallet works. A five-minute smoke test for Agent Kit, MCP, and your LLM loop. - [The Chain Was Never the Problem. The Legibility Was.](https://abstraxn.com/blogs/the-chain-was-never-the-problem): On-chain agent policy failed on one property: readability. Once enforcement and legibility separate, the rule stays private and only the proof settles on-chain. - [We Are Building Guardrails in the Wrong Places](https://abstraxn.com/blogs/guardrails-in-the-wrong-places): On-chain, wallet, and application policy all fail autonomous agents. The enforcement position that matters sits above custody and below the application. - [The Seller Side of x402 Just Got Solved. The Buyer Side Is the Hard Part.](https://abstraxn.com/blogs/cloudflare-monetization-gateway-x402-buyer-side): Cloudflare made any resource chargeable over x402. Here's the buyer stack an AI agent needs (identity, wallet, payments, and policy) to clear that paywall safely. - [Continuous Trust: Agent Identity Is a Verb, Not a Noun](https://abstraxn.com/blogs/continuous-trust-agent-identity-is-a-verb): Static credentials cannot govern autonomous agents. AI agent identity is shifting from a one-time signature to continuous, real-time validation of behavior. - [Agent Identity Verification: The Control Plane for Agentic Payments](https://abstraxn.com/blogs/agent-identity-verification): How AI agents prove identity in agentic payments. Visa, Mastercard, Nuvei, AP2 and ERC-8004 compared, and why a portable identity layer beats siloed registries. - [Agentic Commerce Infrastructure: The Rails Decide Who Wins](https://abstraxn.com/blogs/agentic-commerce-infrastructure): Agentic commerce went live across Visa, Adyen, Stripe and Microsoft in a single week. The models were never the hard part. The agentic commerce infrastructure underneath is. Here is what the rails actually need. - [Agentic Banking Infrastructure API: What It Is and How to Build On It](https://abstraxn.com/blogs/agentic-banking-infrastructure-api): Discover how an agentic banking infrastructure api enables autonomous agents to hold value, pay fees, and execute internet native payments securely without human intervention. - [What Is Agentic AI Identity and Why Every Agent Needs ERC-8004](https://abstraxn.com/blogs/agentic-ai-identity-erc-8004): ERC-8004 is the on-chain identity standard for AI agents. Learn what agentic identity is, why an EVM address isn't enough, and how to register with the @abstraxn/agent-kit SDK. - [AI Agent Spending Limits: How to Build a Mandate That Can't Be Overspent](https://abstraxn.com/blogs/ai-agent-spending-limits-mandate-that-cant-be-overspent): A spending limit in your agent's prompt is a suggestion. Here's how to build an AI agent spending mandate enforced at the wallet and x402 rail, so it can't be overspent. - [Agentic Commerce Compliance: Why the Boring Layer Is the One That Unlocks the Money](https://abstraxn.com/blogs/agentic-commerce-compliance): Everyone is racing to let AI agents check out. The winners will be whoever can prove what an agent bought, why, and on whose authority. A practitioner's guide to agentic commerce compliance, why it is the growth layer and not the friction, and the controls every autonomous transaction needs. - [Know Your Agent: The Infrastructure for Agent-Initiated Financial Actions](https://abstraxn.com/blogs/know-your-agent-infrastructure): We spent a century building financial infrastructure for humans. Now software wants a wallet, a budget, and the right to spend it. A playful, philosophical look at agent-initiated financial actions, why Know Your Agent is the new KYC, and the agentic infrastructure that makes it safe. - [Building an AI Agent That Can Pay Its Own API Bills](https://abstraxn.com/blogs/agent-autonomous-402-payments): Most agents silently fail when they hit a 402. Here's how to build one that detects the error, pays the API autonomously with USDC, and keeps going using @abstraxn/agent-kit. - [HTTP 402 Payment Required: What It Means, How to Fix It, and Why It's Suddenly Relevant Again](https://abstraxn.com/blogs/http-402-payment-required): HTTP 402 Payment Required means your request was valid but payment is needed. Learn what causes it, how to fix it on npm, Stripe, WordPress, nginx, Azure, and why AI agents are finally making it relevant. - [The Interoperable Machine Economy: Notes From a Builder](https://abstraxn.com/blogs/interoperable-machine-economy-agentic-infrastructure-2026): Mastercard, OpenAI, Visa, and MetaMask just validated the machine economy thesis in a single quarter. A builder's reflection on what they confirmed, what they missed, and why the interoperable layer is the gap that decides the next year of agentic infrastructure. - [AI Agent Wallets: How to Build an Agent That Can Actually Pay](https://abstraxn.com/blogs/ai-agent-wallet-build-an-agent-that-can-pay): How to give an AI agent a crypto wallet it can't drain: an on-chain identity, gasless x402 payments, and a hard spending cap, all via account abstraction. - [Agent Identity (ERC-8004) and Payments (x402)](https://abstraxn.com/blogs/ai-agent-identity-and-payments-integration): Two of the four powers are live. Here is how to give an AI agent an ERC-8004 on-chain identity and x402 payments with the Abstraxn Agent Kit, step by step. - [MetaMask Agent Wallet: What It Means for AI Agents & How to Build One](https://abstraxn.com/blogs/metamask-agent-wallet-agent-economy): MetaMask just launched an Agent Wallet for AI agents. Here is what it signals for the agent economy, and how to build your own agentic apps with Abstraxn's ERC-8004 identity, x402 payments, and account abstraction. - [Agent vs Bot vs Assistant: What Is an AI Agent?](https://abstraxn.com/blogs/what-is-an-ai-agent): A bot follows rules, an assistant recommends, an agent acts. And on-chain, an agent looks exactly like a wallet. Here is what actually makes something an agent. - [Who Is Liable When an AI Agent Is Right?](https://abstraxn.com/blogs/who-is-liable-when-the-agent-is-right): Agent fraud is the easy problem. The hard one is the authorized, in-mandate transaction a user regrets. Why agent payment liability is a design choice. - [Agentic Payments Cannot Live on Web2](https://abstraxn.com/blogs/agentic-payments-web2): Agentic payments break on Web2 the moment a CAPTCHA appears. Smart accounts and session keys are the only real fix. - [What Actually Ships: The Four Powers of an Agent](https://abstraxn.com/blogs/ai-agent-infrastructure-four-powers): AI agent infrastructure needs four primitives: identity, wallet, payments, policy. Why ERC-4337 and ERC-8004 are the foundation. - [Account Recovery Without Seed Phrases](https://abstraxn.com/blogs/account-recovery-without-seed-phrases): Seed phrases give you ownership, not access continuity. Recovery has to be enforced by infrastructure, not memorized by users. - [How ERC-4337 Paymasters Actually Work](https://abstraxn.com/blogs/erc-4337-paymasters-gasless-transactions): Gasless transactions are not a pricing trick. They are an execution-layer rewrite. Here is what paymasters do and how they hold up in production. - [Account Abstraction Bundlers](https://abstraxn.com/blogs/account-abstraction-bundlers): Standalone bundlers process UserOperations. They do not solve execution. The unified-stack argument matters more than the bundler itself. - [EOAs vs Smart Accounts: Where Onboarding Friction Comes From](https://abstraxn.com/blogs/eoas-vs-smart-accounts): Onboarding drop-off in Web3 is not a UX problem. It is a wallet architecture problem. EOAs and smart accounts produce different journeys for structural reasons. ## Optional - [Brand Kit](https://abstraxn.com/brand-kit): Official Abstraxn logos and icons for press and partnerships. - [Privacy Policy](https://abstraxn.com/privacy-policy): Abstraxn data handling and privacy practices. - [Terms of Service](https://abstraxn.com/terms-of-service): Abstraxn platform terms of use.