agent

The GoPlus Security team has disclosed a new type of attack in its AgentGuard AI project: inducing AI agents to perform unauthorized sensitive operations through "memory poisoning." This attack method does not rely on traditional vulnerabilities or malicious code but exploits the long-term memory mechanism of AI agents. For example, an attacker first induces the agent to "remember preferences," such as "usually prioritizing proactive refunds instead of waiting for chargebacks," and then uses vague expressions like "process as usual" or "execute as before" in subsequent instructions, thereby triggering automated financial operations.GoPlus points out that the key risk in such cases lies in the AI agent mistakenly treating "historical preferences" as a basis for authorization, leading to financial losses or security incidents in operations such as refunds, transfers, and configuration changes. To address this issue, the team has proposed several protective recommendations, including:Operations involving refunds, transfers, deletions, or sensitive configurations must require explicit confirmation in the current session.Memory-related instructions like "habit," "usual way," and "as before" should be regarded as high-risk state changes.Long-term memory must have a traceability mechanism (writer, time, confirmation status).Vague instructions should automatically elevate the risk level and trigger secondary verification.Long-term memory must not replace real-time authorization processes.The team emphasizes that the "AI agent memory system" should be viewed as a potential attack surface and should be constrained and audited through a dedicated security framework.

On May 13, BNB Chain announced the launch of an on-chain autonomous agent framework, enabling autonomous agents to obtain decentralized identities through the ERC-8004 standard, conduct peer-to-peer payments, delegate tasks to other agents via ERC-8183, and accumulate verifiable on-chain reputation on 8004scan. The entire system operates fully on-chain, with transactions being transparent and auditable, supporting hierarchical agency relationships.The framework integrates various skill modules, including native BNB Chain smart contract execution, querying on-chain data through natural language, Nodereal's MegaNode API infrastructure (providing access to over 25 blockchain networks), and meme token management capabilities provided by fourdotmemezh Agent Skills. Additionally, the BNB Chain Knowledge Base Model Context Protocol (MCP) allows agents to query blockchain documents and receive instant answers, extending agent functionalities to applications such as DeFi and asset management.

Anthropic announced that starting from June 15, 2026, a new billing policy for the Agent SDK will be implemented. According to the new regulations, third-party Agent tools such as OpenClaw will be allowed to access the Claude subscription version again, but they must use a separate "exclusive monthly quota," which will no longer be shared with the regular chat quota.Previously, Anthropic had restricted third-party tools from accessing the Claude subscription quota in April of this year to prevent abuse. This adjustment is seen as the final solution to the related controversy, which is to reopen third-party access while completely isolating Agent calls from the regular chat quota.Specifically, Pro users will receive a monthly exclusive quota of $20; Max 5x and advanced Team versions will receive $100; Max 20x and advanced Enterprise versions can receive up to $200. The relevant quotas can only be used for third-party applications, self-built Agent projects, and claude-p backend command calls, with quotas refreshing monthly, and any excess must be paid at the standard API rate.

YZi Labs announced the 25 graduation projects of its flagship incubation project EASY Residency for the third season, focusing on areas such as on-chain financial market structure reconstruction, AI agents, tokenization of real-world assets, prediction markets, and privacy compliance. The 25 projects include:Identity and payment infrastructure for AI agents on the BNB chain Bank of AI, litigation workflow legal evidence indexing tool Brief Tech, AI probability output verifiable reasoning platform Cournot, financialized social network and trading platform Dapital, programmable token issuance infrastructure Flap;On-chain marketplace for collectibles and intellectual property assets GEMINT, on-chain options and structured products platform LayerV, CEX-level on-chain liquidity platform LunarBase, multi-market agent capital acquisition platform L7, DeFi unified margin layer Möbius, permissionless margin trading protocol Nemesis;AI agent-driven automated financial decision execution layer Newsliquid, tokenized private market exposure DeFi platform Openstocks, on-chain poker skill game options market PokerFi, prediction market automation and intelligence infrastructure Polysights, physical collectibles RWA liquidity infrastructure Renaiss;Fixed-rate decentralized lending platform TermMax, compliance-oriented digital asset privacy infrastructure 0xBow, AI agent workflow self-custody authorization layer Functor, interest-free stablecoin new bank for the Muslim market Isaac, on-chain prime brokerage platform for the BNB chain MARGIN X;Frictionless stablecoin exchange N-dimensional AMM Orbswap, compliance-oriented cross-chain privacy exchange protocol SilentSwap, crypto market AI agent trading and automation infrastructure Taco AI, on-chain event-driven derivatives platform Vibe.fun.

According to GMGN monitoring, Circle surged 15% after earnings and today released Circle Agent Stack, launching financial infrastructure for the agent economy, which includes AI Agent and Nanopayments (USDC nano payments).The x402 ecological project Meridian (MRDN), as one of the early integrators of Circle's AI Agent payment infrastructure, followed up with a post stating "now available on Meridian," which was retweeted by Circle's official account. Coupled with the hot narrative of AI Agent + USDC nano payments, its token MRDN saw a significant increase, with a 24-hour rise exceeding 160% at one point, and a market cap reported at 28 million USD.ChainCatcher reminds users that meme coin trading is highly volatile, largely relying on market sentiment and speculative concepts, and has no actual value or use cases; investors should be aware of the risks.

According to Decrypt, USDC issuer Circle has launched the Agent Stack toolkit, allowing AI agents to autonomously hold funds, pay fees, and conduct transactions using USDC without human intervention. The core products include agent wallets, a command line interface, an agent marketplace, and a nano payment protocol that supports micro-transfers of $0.000001 without gas fees.Circle stated that traditional financial systems are designed for humans, and AI agents cannot operate independently, thus requiring a rebuild of the infrastructure. Circle co-founder Jeremy Allaire said that Agent Stack is the first financial services suite to treat AI agents themselves as clients.

According to the official announcement, Circle has launched a new infrastructure suite for the "Agentic Economy," called Circle Agent Stack, which includes products such as Circle CLI, Agent Wallets, Agent Marketplace, and Nanopayments based on Circle Gateway, supporting AI agents as autonomous economic entities for asset holding, service discovery, and on-chain payments.Among them, Nanopayments supports gas-free USDC transfers at a minimum level of $0.000001, aimed at high-frequency machine-to-machine payment scenarios; Agent Wallets allow AI agents to autonomously manage funds under preset permissions and risk control frameworks; Agent Marketplace provides an AI service directory, enabling agents to automatically discover and invoke services.Circle CEO Jeremy Allaire stated that traditional financial infrastructure is designed for "humans," while the future global economy will increasingly be driven by AI and agents. The Circle Agent Stack is the first complete product suite launched for "AI agents themselves" rather than developers.

On May 10, Vitalik Buterin published a research article advocating that cryptocurrency payments need to shift from pseudonymity to default privacy, proposing the use of zero-knowledge proof (ZK) transactions to replace standard transfers, allowing users to prove payment validity without exposing their full balance or transaction history.Vitalik specifically pointed out that in the era of agents, autonomous AI agents need to pay service fees (such as LLM API fees) without leaving traceable footprints. By using recursive SNARKs and ZK APIs for points, Ethereum Layer 2 can handle privacy payments at the same speed and cost as transparent transactions. The proposal also includes selective disclosure and proof of innocence mechanisms, allowing users to provide specific proofs to compliance agencies or tax authorities without disclosing data to the public, in response to anti-money laundering regulatory requirements.Vitalik believes that the public transparency of blockchain is the main obstacle preventing cryptocurrency payments from replacing traditional payments, and the ZK payment standard aims to make privacy a default feature.

According to CoinDesk, executives from PayPal and Google Cloud stated that future AI Agent-driven business activities will operate on a cryptocurrency payment track, as AI Agents cannot use traditional bank accounts like humans.Richard Widmann, Head of Google Cloud Web3 Strategy, mentioned that AI Agents cannot directly open bank accounts on both technical and regulatory levels, while cryptocurrencies provide an "excellent machine-readable payment interface." He revealed that Google has launched the open Agentic Payments Protocol (AP2) and donated it to the FIDO Foundation, with over 120 partners, including PayPal, already on board.May Zabaneh, Senior Vice President of PayPal's crypto business, stated that the company views AI Agents as the next generation of business entry points following offline, online, and mobile payments. She pointed out that PYUSD, as PayPal's stablecoin, provides a natural programmable payment layer for AI-native payments and global transactions.A PayPal survey showed that 95% of merchant websites currently have AI Agent traffic, but only about 20% of merchants have machine-readable product catalogs. Zabaneh believes that merchants need to adapt to the AI Agent era as soon as possible, or they will miss the next opportunity for upgrading their business infrastructure. Additionally, both parties discussed the security and accountability issues surrounding AI Agents.Widmann stated that multi-party custody will become an important solution for managing Agent funds, and AI Agents should not fully control private keys but only hold partial key fragments to reduce financial risks.

Base's official tweet stated that in the first quarter of this year, the total payment amount of the x402 protocol has exceeded 100 million dollars. Among them, over 90% of the total transactions using stablecoins by on-chain AI agents occurred on the Base network.

According to official news, the total payment amount of Base in the first quarter of 2026 for x402 has exceeded 100 million USD. At the same time, Base accounts for over 90% of the on-chain Agentic stablecoin trading volume.

According to Globenewswire, cryptocurrency wallet service provider Exodus announced the launch of the stablecoin XO Cash, built on Solana, aimed at AI Agents and the Agentic Economy, and simultaneously released the AgentKit development toolkit.XO Cash reportedly allows developers to create independent wallets for AI Agents through a single API call, enabling Agents to make payments directly using their Exodus Pay balance without the need to hold or manage it.

According to Ambcrypto, Coinbase has partnered with Amazon Web Services (AWS) to jointly launch a new payment layer that allows AI Agents to autonomously make micro-payments using USDC.The solution integrates Coinbase's wallet infrastructure and the x402 payment protocol into Amazon Bedrock's AgentCore Payments system. Developers can build AI agents that autonomously discover services, pay on demand, and complete tasks without human intervention.Reports indicate that the x402 protocol is based on the HTTP 402 "Payment Required" standard, with transactions completed in about 200 milliseconds at a cost of just a fraction of a cent, supporting high-frequency low-value machine-native payments. The system also includes enterprise-level budget control and compliance tools.

The AI Agent Economy project NeoSoul today announced a strategic partnership with the self-hosted stablecoin Neobank AllScale.It is reported that both parties will conduct in-depth research on the credit formation of AI Agents and stablecoin settlement, focusing on the payment needs generated by Agents in autonomous collaboration (such as purchasing data, invoking tools, requesting services from other Agents, etc.), and how to achieve automated settlement through stablecoins.According to the introduction, NeoSoul is committed to building its long-term credit network by recording the judgment processes and feedback results of Agents; AllScale focuses on stablecoin payments and commercial capital flow scenarios. This exploratory cooperation aims to study how to provide more efficient and low-friction value transfer support for future automated collaboration and micro-settlement between AI Agents through stablecoin payment infrastructure.

The AI infrastructure platform B.AI announced on May 7 that its user base has officially surpassed 1.7 million. As an innovative force dedicated to building the core infrastructure for privacy protection, intelligent routing, and the agent economy, B.AI is accelerating the execution layer of autonomous intelligent large-scale development through significant benefits such as zero markup on all models, a gift of 500,000 free points upon new user registration, and a limited-time 1:1 recharge with a cost reduction of 50%. B.AI will continue to drive technological innovation and extreme cost-effectiveness as dual engines, working with millions of users to build an efficient and secure autonomous intelligent execution layer, and jointly advance into a new ecosystem of agents.