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    Agent Card

    Process automationA2A Agent Card
    Editorially reviewed on: 2 sources
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    The short answer · 20 words

    In short

    An agent card describes in the A2A protocol the identity, capabilities and connection properties of an agent for other systems.

    Flow-alerta.cab (2026): Agent Card. https://flow-alerta.cab/en/glossar/agent-card. Editorially reviewed on: 09 October 2026.

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    Practical

    Important for discovery and interoperable multi-agent systems, especially when agents from different providers are to work together.

    Possible example: A purchasing agent reads the agent card of a supplier agent and recognizes which tasks and A2A functions it offers.

    Possible applications: Discovery and integration of specialized agents between enterprise systems, partners or platforms.

    At a glance

    Core
    The Agent Card describes identity, capabilities, skills, supported interfaces and security requirements. Endpoints are part of the interface specifications; details depend on the A2A version.
    Use
    Important for discovery and interoperable multi-agent systems, especially when agents from different providers are to work together.
    Example
    Possible example: A purchasing agent reads the agent card of a supplier agent and recognizes which tasks and A2A functions it offers.
    Limits
    Trust cards unchecked; confuse a valid signature with professional reliability or access rights; disclose sensitive metadata.

    In context

    Agent-to-Agent Protocol (A2A)

    A2A is an open protocol through which different AI agent applications can exchange tasks and results.

    Agent Handoff

    An agent handoff passes a task or conversation from one agent to another specialized agent.

    Model Context Protocol (MCP)

    MCP is a protocol that allows AI applications to connect tools and data sources in a uniform manner.

    Questions about this term

    Is an Agent Card a Security Certificate?

    No.

    Is it the same as an MCP tool scheme?

    No, it describes an A2A agent and its capabilities.

    All details and background

    The Agent Card describes identity, capabilities, skills, supported interfaces and security requirements. Endpoints are part of the interface specifications; details depend on the A2A version.

    ELI5 – Explained simply

    Like a digital business card for an AI agent: it tells who it is, what it can do and how others reach it.

    Why it matters in practice

    Important for discovery and interoperable multi-agent systems, especially when agents from different providers are to work together.

    Example

    Possible example: A purchasing agent reads the agent card of a supplier agent and recognizes which tasks and A2A functions it offers.

    Pitfalls and limits

    • Trust cards unchecked; confuse a valid signature with professional reliability or access rights; disclose sensitive metadata.

    Origin & history

    Agent Cards became known as the core element of agent discovery with the Agent2Agent protocol released by Google in 2025; A2A is now being developed as an open protocol.

    Use in mid-sized companies

    • Possible applications: Discovery and integration of specialized agents between enterprise systems, partners or platforms.

    Related terms

    Matching Flow-alerta service

    AI assistants & automationAI assistants & automation: test a suitable process with clear rights and human test points.

    Matching tool / use case

    View use casesUse Case: Discovery of a Partner Agent via A2A; Tool/Standard: Agent2Agent (A2A)

    Sources

    Quellenprüfung: 09.10.2026. Anwendungsbeispiele sind mögliche Szenarien, keine behaupteten Kundenfälle.

    Editorially reviewed on:

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