Agentic Resource Discovery (ARD): Open Protocol for Finding AI Capabilities

LinkARD Working GroupResource

The Agentic Resource Discovery (ARD) specification outlines an open discovery protocol enabling AI clients to search for available tools, servers, and workflows suited to a specific task before invoking them.

Key points

  1. ARD operates strictly prior to invocation: it allows AI clients to discover matching capabilities, whilst execution remains native to the underlying tool.
  2. Agentic resources cover diverse external capabilities including MCP servers, standalone agents, skills, plugins, APIs, and workflows.
  3. The specification is not an execution runtime and does not replace protocols like MCP or A2A, nor does it create a single centralised registry.
  4. ARD is open-source under the Apache 2.0 licence, developed by a working group that includes Microsoft, Google, Hugging Face, and GoDaddy.
  5. Connection guides are provided for leading chatbots and assistants, including Claude, ChatGPT, Gemini, Microsoft Copilot, and GitHub Copilot.

Why it matters

As the ecosystem of AI agents and tooling expands rapidly, discovery becomes a major bottleneck. A standardised, decentralised discovery layer lets systems identify relevant services across corporate intranets and the open web without vendor lock-in.

Analysis

By focusing solely on pre-invocation discovery rather than execution, ARD complements existing runtimes instead of competing with them. Its federated model reflects web search architecture: organisations can host private discovery instances tailored to their security and ranking criteria, while public directories can address broad discovery. The active backing from Microsoft, Google, and Hugging Face gives the initiative credible momentum towards widespread adoption.

Found in

Summary generated by AI (Gemini 3.8 Flash, 28 September 2026). It may contain errors – the original source is authoritative.

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