AGNTCY
08 agent-communication/AGNTCY/ACTIVE/aka Internet of Agents
AGNTCY is the Cisco-originated 'Internet of Agents' collective — an open-source stack for agent discovery (directory), secure messaging (SLIM), identity, and observability across vendors.
What it does
- 01Agent directory
- 02SLIM messaging fabric
- 03Identity and badges
- 04Observability SDKs
- 05Linux Foundation project
Who it's for
Teams building a multi-vendor agent fabric who want the whole stack — discovery, transport, identity — not just a message schema.
Pricing
Free (OSS, Apache-2.0). List prices as checked against the vendor's pricing page on 2026-09-25; plans change often, so confirm before deciding.
caveat · before you adopt
Broad scope and early: components ship at different maturity levels, and the task layer overlaps with A2A.
Other agent communication platforms (12)
OpenScout / Scout
OpenScout · agent-communication

A2A Protocol
A2A Project · agent-communication

Agent Network Protocol
Community / OSS · agent-communication

NANDA
NANDA (MIT Media Lab) · agent-communication
BeeAI
IBM · agent-communication
CrewAI
CrewAI · agent-communication
Microsoft Agent Framework
Microsoft · agent-communication

LangGraph
LangChain · agent-communication

MetaGPT
DeepWisdom · agent-communication
CAMEL
CAMEL-AI · agent-communication

Agency Swarm
VRSEN · agent-communication

OpenAI Agents SDK
OpenAI · agent-communication
Head-to-head (1)
Frequently asked
What is AGNTCY?
AGNTCY is the Cisco-originated 'Internet of Agents' collective — an open-source stack for agent discovery (directory), secure messaging (SLIM), identity, and observability across vendors.
Who is AGNTCY for?
Teams building a multi-vendor agent fabric who want the whole stack — discovery, transport, identity — not just a message schema.
How much does AGNTCY cost?
Free (OSS, Apache-2.0). List prices as checked against the vendor's pricing page on 2026-09-25; plans change often, so confirm before deciding.
Does AGNTCY run locally or in the cloud?
AGNTCY runs locally on your machine and in the vendor's cloud. Its interfaces are an API or protocol.
What are alternatives to AGNTCY?
Other agent communication platform entries in the catalog: OpenScout / Scout, A2A Protocol, Agent Network Protocol, NANDA, BeeAI, CrewAI, Microsoft Agent Framework, LangGraph, MetaGPT, CAMEL, Agency Swarm, OpenAI Agents SDK. Different categories solve the same problem differently — see the Agent communication & collaboration category page for tradeoffs.
What should I know before adopting AGNTCY?
Broad scope and early: components ship at different maturity levels, and the task layer overlaps with A2A.