A2A协议

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AI替你“剁手”的时代,真的来了
3 6 Ke· 2025-09-18 11:16
Core Insights - The article discusses the launch of the Agent Payments Protocol (AP2) by Google, which aims to enable AI agents to conduct transactions autonomously, marking the beginning of a trillion-dollar "Agentic Commerce" era [1][7]. Group 1: Challenges of AI Agents in Transactions - AI agents face a significant barrier to autonomous transactions due to the lack of trust in the existing financial payment systems, which are built around human behavior [3][4]. - Three critical questions arise regarding trust: authorization (how merchants can verify the AI agent's legitimacy), authenticity (how to ensure the order reflects the user's true intent), and accountability (who is responsible in case of errors) [4][6]. Group 2: Evolution of AI Payment Protocols - The AP2 protocol is the final chapter in a three-part series aimed at integrating AI into the economy, following the MCP (Agent-to-Tool) and A2A (Agent-to-Agent) protocols [7][8][13]. - MCP allowed AI agents to interact with external tools, while A2A enabled communication between different agents, setting the stage for AP2 to facilitate economic transactions [11][16]. Group 3: Mechanism of AP2 - AP2 introduces a "digital evidence chain" that includes a "mandate" system, which serves as a legally binding digital contract for each transaction [17][19]. - The process involves generating an intention mandate, a shopping cart mandate, and a payment association, ensuring that every transaction is authorized, factual, and accountable [20][21][22]. Group 4: Industry Collaboration and Future Implications - AP2 is an open-source protocol with over 60 initial partners, including major players in finance, e-commerce, and technology, indicating a collaborative effort to establish trust standards in AI commerce [24][26]. - The implementation of AP2 signifies a shift in commercial interactions, moving from human-driven interfaces to backend API-level negotiations between agents [26][27].
「AI助手」真来了?谷歌牵头推进Agent支付协议AP2
3 6 Ke· 2025-09-17 11:12
Core Insights - The article discusses Google's new AP2 protocol, which facilitates secure cross-platform payment transactions initiated by AI agents, providing traceable records for each transaction [2][6][7]. Group 1: AP2 Protocol Overview - AP2 is an extension of the A2A and MCP protocols, aimed at enhancing the capabilities of AI agents by enabling better integration with external resources, tools, and APIs [2][4]. - The protocol addresses three main issues: authorization, authenticity, and accountability in transactions conducted by AI agents [7]. Group 2: Functionality and Mechanism - AP2 establishes trust through the use of Mandates (authorization documents), which are tamper-proof, encrypted digital contracts serving as verifiable proof of user instructions [8]. - The protocol supports various payment types, including credit cards, debit cards, stablecoins, and real-time bank transfers, ensuring a consistent and secure experience for users and merchants [7]. Group 3: Use Cases and Collaborations - AP2 allows users to delegate tasks to agents, such as booking flights and hotels, with the agent automatically executing transactions once predefined conditions are met [10]. - Google has partnered with over 60 companies, including American Express, Alibaba, and PayPal, to implement the AP2 protocol [10]. Group 4: Technical Implementation - The AP2 project is publicly available on GitHub, including technical specifications, documentation, and reference implementations for developers [12]. - Users are required to have Python 3.10 or higher and must obtain a Google API key to set up the environment for running the protocol [13].
「AI助手」真来了?谷歌牵头推进Agent支付协议AP2
机器之心· 2025-09-17 09:37
Core Viewpoint - Google has launched the Agent Payments Protocol (AP2), an open shared protocol designed to facilitate secure and compliant transactions between agents and merchants, providing a common language for these interactions [2][10]. Summary by Sections Introduction of AP2 - AP2 serves as an extension of the A2A and MCP protocols, enhancing the capabilities of AI agents in processing payments across platforms [5][7]. - The protocol addresses the need for intelligent interactions among multiple agents, moving beyond manual operations to a more automated and integrated approach [6]. Key Issues Addressed by AP2 - AP2 focuses on three main issues: authorization, authenticity, and accountability in transactions initiated by agents [9]. - It aims to ensure that transactions are secure and that users' intentions are accurately represented, while also establishing clear accountability in case of fraud or errors [8][10]. Operational Mechanism - The protocol utilizes mandates (authorization documents) to build trust, which are tamper-proof, encrypted digital contracts serving as verifiable proof of user instructions [12]. - These mandates create an audit trail from user intent to payment, addressing key concerns of authorization and authenticity [13]. Practical Applications - AP2 enables a new business model in the AI era, allowing agents to interact with various service providers seamlessly. For example, a user can instruct an agent to book travel arrangements within a specified budget, and the agent can execute transactions across multiple platforms [14]. - Google has partnered with over 60 companies, including major players like American Express, Alibaba, and PayPal, to implement this protocol [14]. Technical Implementation - The project is publicly available on GitHub, including technical specifications and reference implementations, facilitating broader adoption and integration [15][24]. - The protocol supports various payment types, ensuring a consistent and secure experience for users and merchants alike [10].
全球AI应用产品梳理:模型能力持续迭代,智能体推动商业化进程-20250723
Guoxin Securities· 2025-07-23 13:20
Investment Rating - The report maintains an "Outperform" rating for the AI application industry [1] Core Insights - The capabilities of AI models are rapidly improving, driven by open-source initiatives that lower costs. Large models have achieved new heights in knowledge Q&A, mathematics, and programming, surpassing human-level performance in various tasks. The introduction of high-performance open-source models like Llama 3.1 and DeepSeek R1 has narrowed the gap between open-source and closed-source models [2][5] - AI agents are becoming more sophisticated, with a surge in new product releases. These agents can perceive their environment, make decisions, and execute actions, enhancing their functionality through the integration of external tools and services [2][30] - The commercial use of AI is on the rise, with significant growth in usage and performance of domestic models. The gap between top models in China and the US is closing, supported by a continuous increase in global AI model traffic [2][50] - AI applications are reshaping traffic entry points, with traditional internet giants leveraging proprietary data and user engagement to integrate AI functionalities into existing applications [2][50] - The open-source movement is increasing investment willingness and accelerating cloud adoption among enterprises, as the proliferation of development tools lowers industry application barriers [2][50] Summary by Sections Model Layer: Rapid Capability Enhancement and Cost Reduction - The mainstream model architecture is shifting towards MoE, allowing for more efficient resource use while enhancing performance. Models like DeepSeek-V3 and Llama 4 have demonstrated low-cost, high-performance capabilities [8][9] - The multi-modal capabilities of models have significantly improved, enabling them to process various data types, thus expanding application scenarios [8][9] - The introduction of chain-of-thought reasoning techniques has improved the accuracy and reliability of model responses [8][9] Commercialization: Continuous Growth in Usage and Strong Performance of Domestic Models - The competition among vendors has led to a significant decrease in inference costs, benefiting application developers and end-users [21][22] - The API call prices for major models have dropped substantially, with some models seeing reductions of up to 88% [21][22] AI Agents: Technological Advancements and Product Releases - AI agents are evolving from traditional models to more autonomous entities capable of independent decision-making and task execution [30][31] - The introduction of protocols like MCP and A2A is enhancing the capabilities and interoperability of AI agents, facilitating complex task execution across different systems [38][39] C-end Applications: AI Empowering Business and Reshaping Traffic Entry - AI applications are expected to redefine traffic entry points, with major players actively positioning themselves in this space [2][50] B-end Applications: Open-source Enhancing Investment Willingness and Cloud Adoption - The development of open-source tools is significantly lowering the barriers for industry applications, accelerating the intelligent transformation of various sectors [2][50]
MCP 已经起飞了,A2A 才开始追赶
AI前线· 2025-07-07 06:57
Core Viewpoint - Google Cloud's donation of the A2A (Agent-to-Agent) protocol to the Linux Foundation has sparked significant interest in the AI industry, indicating a strategic response to competitors like Anthropic's MCP protocol and OpenAI's functions, while highlighting the industry's consensus on the need for foundational rules in the agent economy [1][4]. Summary by Sections A2A Protocol and Industry Response - The A2A protocol includes agent interaction protocols, SDKs, and developer tools, backed by major tech companies like Amazon, Microsoft, and Cisco [1]. - The decision to donate A2A is seen as a strategic move against competing protocols, emphasizing the necessity for collaborative foundational rules in the AI sector [1][4]. MCP Protocol Insights - MCP focuses on enabling AI models to safely and efficiently access real-world tools and services, contrasting with A2A's emphasis on agent communication [4]. - Key aspects of developing an MCP Server include adapting existing API systems and ensuring detailed descriptions of tools for effective service provision [7][8]. Development Scenarios for MCP - Two primary scenarios for implementing MCP services are identified: adapting existing API systems and building from scratch, with the latter requiring more time for business logic development [8][9]. - The importance of clear tool descriptions in the MCP development process is highlighted, as they directly impact the accuracy of model calls [13]. Compatibility and Integration Challenges - Compatibility issues arise when integrating MCP servers with various AI models, necessitating multiple tests to ensure effective operation [10][11]. - The need for clear descriptions and error monitoring mechanisms is emphasized to identify and resolve issues during the operation of MCP systems [14]. Future Directions and Innovations - The MCP protocol is expected to evolve, with predictions that around 80% of core software will implement their own MCPs, leading to a more diverse development landscape [40]. - The introduction of the Streamable HTTP protocol aims to enhance real-time data handling and communication between agents, indicating a shift towards more dynamic interactions [15][40]. A2A vs MCP - MCP primarily addresses tool-level issues, while A2A focuses on building an ecosystem for agent collaboration, facilitating communication and discovery among different agents [32][33]. - The potential for A2A to create a more extensive ecosystem is acknowledged, with plans for integration into existing products and services [34][35]. Security and Privacy Considerations - The importance of safeguarding sensitive data in MCP services is stressed, with recommendations against exposing private information through these protocols [28]. - Existing identity verification mechanisms are suggested to manage user access and ensure data security within MCP services [28]. Conclusion - The ongoing development of both MCP and A2A protocols reflects the industry's commitment to enhancing AI capabilities and fostering collaboration among various agents, with a focus on security, efficiency, and adaptability to evolving technologies [40][43].
智能体不断进化,协作风险升高:五大安全问题扫描
2 1 Shi Ji Jing Ji Bao Dao· 2025-07-03 00:36
Core Insights - The year 2025 is anticipated to be the "Year of Intelligent Agents," marking a paradigm shift in AI development from conversational generation to automated execution, positioning intelligent agents as key commercial anchors and the next generation of human-computer interaction [1] Group 1: Development and Risks of Intelligent Agents - As intelligent agents approach practical application, the associated risks become more tangible, with concerns about overreach, boundary violations, and potential loss of control [2] - A consensus exists within the industry that the controllability and trustworthiness of intelligent agents are critical metrics, with safety and compliance issues widely recognized as significant [2] - Risks associated with intelligent agents are categorized into internal and external security threats, with internal risks stemming from vulnerabilities in core components and external risks arising from interactions with external protocols and environments [2] Group 2: AI Hallucinations and Decision Errors - Over 70% of respondents in a safety awareness survey expressed concerns about AI hallucinations and erroneous decision-making, highlighting the prevalence of factual inaccuracies in AI-generated content [2] - In high-risk sectors like healthcare and finance, AI hallucinations could lead to severe consequences, exemplified by a hypothetical 3% misdiagnosis rate in a medical diagnostic agent potentially resulting in hundreds of thousands of misdiagnoses among millions of users [2] Group 3: Practical Applications and Challenges - Many enterprises have found that intelligent agents currently struggle to reliably address hallucination issues, leading some to abandon AI solutions due to inconsistent performance [3] - A notable case involved Air Canada's AI customer service, which provided incorrect refund information, resulting in the company being held legally accountable for the AI's erroneous decision [3] Group 4: Technical Frameworks and Regulations - Intelligent agents utilize various technical bridges to connect with the external world, employing two primary technical routes: an "intent framework" based on API cooperation and a "visual route" that bypasses interface authorization barriers [4] - Recent evaluations have highlighted chaotic usage of accessibility permissions by mobile intelligent agents, raising significant security concerns [5] Group 5: Regulatory Developments - A series of standards and initiatives have emerged in 2024 aimed at enhancing the management of accessibility permissions for intelligent agents, emphasizing user consent and risk disclosure [6] - The standards, while not mandatory, reflect a growing recognition of the need for safety in the deployment of intelligent agents [6] Group 6: Security Risks and Injection Attacks - Prompt injection attacks represent a core security risk for all intelligent agents, where attackers manipulate input prompts to induce the AI to produce desired outputs [7][8] - The emergence of indirect prompt injection risks, particularly with the rise of MCP (Multi-Channel Protocol) tools, poses new challenges as attackers can embed malicious instructions in external data sources [8][9] Group 7: MCP Services and Security Challenges - The MCP service Fetch has been identified as a significant entry point for indirect prompt injection attacks, raising concerns about the security of external content accessed by intelligent agents [10] - The lack of standardized security certifications for MCP services complicates the assessment of their safety, with many platforms lacking rigorous review processes [11] Group 8: Future of Intelligent Agent Collaboration - The development of multi-agent collaboration mechanisms is seen as crucial for the practical deployment of AI, with various companies exploring the potential for intelligent agents to work together on tasks [12][13] - The establishment of the IIFAA Agent Security Link aims to provide a secure framework for collaboration among intelligent agents, addressing issues of permissions, data, and privacy [14]
谷歌将 A2A 捐赠给 Linux 基金会,但代码实现还得靠开发者自己?!
AI前线· 2025-06-24 06:47
Core Insights - The article discusses the establishment of the Agent2Agent (A2A) project by the Linux Foundation in collaboration with major tech companies like AWS, Google, and Microsoft, aimed at creating an open standard for communication between AI agents [1][3][7] - A2A is positioned as a higher-level protocol compared to the Model Context Protocol (MCP), facilitating seamless interaction among multiple AI agents, while MCP focuses on integrating large models with external tools [6][7][11] - The article highlights the importance of these protocols in enhancing the reliability and functionality of AI systems, particularly in complex workflows involving multiple AI agents [14][15][18] Summary by Sections A2A Project Announcement - The A2A project was announced at the North America Open Source Summit on June 23, with initial contributions from Google, including the A2A protocol specification and related SDKs [1] - The A2A protocol aims to address the "island" problem of AI by enabling communication and collaboration between different AI systems [1] Comparison with MCP - MCP has rapidly expanded, growing from 500 servers in February to over 4000 servers currently, indicating its swift adoption [4] - A2A operates at a higher level than MCP, focusing on inter-agent communication, while MCP standardizes communication between large models and external tools [6][7] Developer Perspectives - Developers express uncertainty about how A2A and MCP will coexist, with some suggesting that A2A needs to demonstrate unique capabilities to stand out [11] - A2A's HTTP-based communication model may offer easier integration compared to MCP, which has been noted for its complexity [11][12] Protocol Necessity and ROI - The necessity of adopting these protocols is questioned, with some industry leaders suggesting that they should only be used when genuinely needed [13] - The article emphasizes the challenges in measuring ROI for AI applications, highlighting that only about 5% of generative AI projects have turned into profitable products [18] Security and Monitoring Concerns - There are concerns regarding the security and complexity of both protocols, particularly in terms of identity verification and authorization [17] - The monitoring and evaluation mechanisms for agent-driven systems are still in early stages, indicating a need for further development in this area [17]
人工智能行业专题研究:MCP协议加速AIAgent生态繁荣
Yuan Da Xin Xi· 2025-06-06 07:04
Investment Rating - The investment rating for the industry is "Positive" [5] Core Insights - AI Agents represent the third stage of AI development, transitioning from simple Q&A and content generation to becoming true "executors" capable of completing actual work tasks independently by 2025 [1][15] - The Model Context Protocol (MCP) is redefining the paradigm for AI Agents, serving as a crucial infrastructure that enhances the interaction between AI models and external services, making it more natural and precise [2][20] - Major tech companies are actively investing in AI Agent products, indicating a shift from technical competition to ecological value reconstruction in the AI Agent industry [2][34] Summary by Sections MCP Protocol Restructuring AI Agent Paradigm - AI Agents are identified as the third stage of AI development, with capabilities to represent users in actions [1][8] - The MCP protocol standardizes tool interfaces, allowing for seamless data interaction and decision execution across platforms [17][20] Acceleration of AI Agent Applications - Tech giants are rapidly deploying AI Agent products, with a noticeable shift towards ecological value reconstruction [34] - The market shows a strong preference for general-purpose AI Agents, with significant funding differences compared to vertical industry-focused agents [37] Investment Recommendations - The MCP protocol is likened to the "HTTP protocol" of the AI era, marking a transition to a standardized era of AI development [3][44] - Recommended companies to focus on include: Yonyou Network (commercial platform), Kingsoft Office (office solutions), iFlytek, and Wankong Technology (AIGC) [3][44] Industry Key Company Profit Forecasts - Profit forecasts for key companies indicate a positive outlook, with expected net profits for Yonyou Network, Kingsoft Office, iFlytek, and Wankong Technology showing growth from 2025 to 2027 [45]
MCP/A2A之后,Agent补齐最后一块协议拼图
3 6 Ke· 2025-05-16 01:09
Core Insights - The introduction of the AG-UI protocol completes the necessary framework for AI application ecosystems, following the MCP and A2A protocols [3][24] - The AI application ecosystem is structured around three roles: users, agents, and the external world, with a focus on interoperability among these roles [2][3] - The trend in AI model training is becoming increasingly oligopolistic, with only a few major players capable of developing foundational large models [1] Group 1: Protocols Overview - MCP and A2A protocols serve as foundational infrastructures for AI applications, facilitating communication between agents and the external world, and between agents themselves [2][9] - AG-UI protocol addresses the communication between users and agents, filling the gap left by MCP and A2A [3][24] - AG-UI provides a standard framework for front-end applications to communicate with back-end agents, enhancing user experience [13][24] Group 2: Agent Functionality - Agents act as intermediaries that perform tasks on behalf of users, similar to real-world agents like real estate brokers [8][9] - The efficiency of agents is highlighted by tools like Lovart, which can autonomously generate video content by coordinating various resources [9][10] - The need for standardized protocols like MCP and A2A arises from the necessity for agents to interact with various tools and each other effectively [9][11] Group 3: AG-UI Protocol Features - AG-UI protocol introduces an event-driven model that allows front-end applications to receive real-time updates from agents, improving user interaction [13][16] - It includes five types of events: Lifecycle Events, Text Message Events, Tool Call Events, State Management Events, and Special Events, which facilitate efficient communication [17][20] - The protocol allows for incremental updates, reducing the need for complete data transfers and enhancing performance [17][22] Group 4: User Experience Enhancement - AG-UI enables front-end applications to provide immediate feedback to users based on agent activity, such as displaying loading indicators during processing [16][22] - The protocol supports a seamless user experience by allowing for real-time updates and interactions without waiting for complete responses [16][22] - By standardizing communication between agents and user interfaces, AG-UI aims to improve the overall efficiency and effectiveness of AI applications [24]
海内外大厂拥抱MCP,一场争夺Agent生态话语权的预备役
Di Yi Cai Jing· 2025-05-09 06:46
Core Insights - The emergence of the MCP (Model Context Protocol) is reshaping the AI industry, promoting a more egalitarian approach to technology and focusing on the effectiveness of AI products rather than the underlying models [1][3][10] - The global AI Agent market is projected to grow significantly, from $5.29 billion in 2024 to $216.8 billion by 2035, with a compound annual growth rate (CAGR) of 40.15% [3][10] - Major tech companies are increasingly adopting the MCP protocol, which aims to standardize interactions between AI models and external tools, akin to foundational internet protocols like HTTP [5][9] Industry Dynamics - The AI industry is experiencing a shift from traditional applications to AI Agents and terminal devices, driven by advancements in technologies such as natural language processing and machine learning [10] - The MCP protocol is seen as a solution to the complexities faced by developers in integrating various tools and models, highlighting a clear market demand for standardized protocols [8][9] - Companies like OpenAI, Tencent, and Alibaba are actively supporting the MCP protocol, indicating a collective movement towards a unified framework in the AI ecosystem [6][7][5] Competitive Landscape - The competition between MCP and Google's A2A (Agent2Agent) protocol illustrates the ongoing struggle for dominance in the AI Agent space, with both protocols seeking developer and enterprise support [7][9] - The industry is still in its early stages, with ongoing optimization of the MCP protocol and a focus on addressing the challenges of model consistency and interoperability [10][11] - The potential for collaboration between different protocols exists, particularly given the investment relationships among key players like Google and Anthropic [7][9] Future Outlook - The development of AI Agents is expected to lower the barriers for consumers in using software and smart hardware, with a focus on enhancing user experience through intuitive interactions [11] - The evolution of the MCP protocol is anticipated to address critical issues such as authentication and discovery mechanisms, which are essential for commercial applications [12] - As the market matures, the demand for effective applications rather than mere traffic aggregation will drive the future of the MCP marketplace [12]