Need a skill, MCP server, or A2A partner? Your agent searches the Directory, wires it in, and uses it right away. See the MCP server for more details.

Agent Directory Service

part of

One federated registry for
cross-framework agent discovery.

An open-source, framework-agnostic registry for agentic resource discovery and management. Publish, verify, and discover MCP servers, A2A agents, and Agent Skills through a federated control plane, enabling native interoperability for complex, multi-agent workflows. Agent Directory implements the ARD specification.

Quickstart Community GitHub

Try Cisco's AI Catalog

Capability-Based Discovery

Publish and find agents by structured skills and attributes using OASF taxonomies and content routing across a distributed network of directory servers.

Federated Architecture

Interconnect directory instances through DHT-based content routing, enabling decentralized discovery without a single central registry.

Verifiable Claims

Cryptographic integrity and provenance for directory records help users make informed decisions about agent selection and trust.

Quickstart

agent@workspace:~

– ✕

With your agent CLI basics Try it yourself

Community

Connect with AGNTCY contributors, join working group meetings, and help shape open agent discovery. For more information, see the community page.

Discord Chat with maintainers and contributors in the Agent Directory Discord server. Meetings Join working group and community meetings on the AGNTCY calendar. Blog Read announcements, tutorials, and technical deep dives from the Agent Directory team.

Contribute

Help build the Agent Directory Service by contributing code, reporting bugs, or suggesting enhancements. Pick up a good first issue, review open pull requests, or read the contributing guide to get started.

Visit our GitHub Good first issues

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Explore Agent Directory Service

• Quickstart

  Run a local Directory instance in minutes.

  Quickstart

• Read the Introduction

  Understand core concepts, architecture, and features.

  Overview

  Architecture

• Dive into the Specification

  Explore the ADS Internet Draft and protocol definition.

  ADS Specification

  AI Catalog specification

• SDKs and Tools

  Client libraries, CLI, and API references.

  SDK Overview

  CLI Reference

• Deploy

  Local, Kubernetes, and production deployment guides.

  Local Deployment

  Production Deployment

• Linux Foundation Press Release

  Read how the Linux Foundation welcomed the AGNTCY project to standardize open multi-agent system infrastructure and break down AI agent silos.

  LF press release

• Join the Federation Testbed

  We invite organizations, researchers, and developers to join the Agent Directory Testbed—a decentralized, open staging environment for next-generation AI agent discovery and secure registry federation.

  Call for federation partners

  Federated Directory setup