Is Cursor or Hermes Agent open source?

Cursor is proprietary. Hermes Agent is open source.

Do Cursor and Hermes Agent support MCP servers?

Cursor: yes. Hermes Agent: not verified yet.

Yes. Both read the open Agent Skills (SKILL.md) format, so the same skill folder works in both.

Comparison

How the two compare on the things that decide whether your setup carries over: open standards, license, models and where they run.

	Cursor	Hermes Agent
Maker	Anysphere	Nous Research
License	Proprietary	Open source
Models	See vendor docs	Model-agnostic: hosted or local models
Runs in	IDE, CLI, Web	Terminal, Desktop, Messaging
MCP	MCP: supported	?MCP: not yet verified
Agent Skills	Agent Skills: supported	Agent Skills: supported
AGENTS.md	AGENTS.md: supported	?AGENTS.md: not yet verified
ACP	ACP: supported	ACP: supported

Hermes Agent is open source; Cursor is proprietary. If you need to self-host, audit or fork the harness, that settles it.
Cursor also runs in IDE, CLI, Web; Hermes Agent also runs in Terminal, Desktop, Messaging.
Cursor supports MCP; we have not verified it for Hermes Agent.
Cursor supports AGENTS.md; we have not verified it for Hermes Agent.
Both support Agent Skills, ACP, so MCP servers, skills and repo instructions you set up carry over if you switch.

Cursor

AI editor and coding agent. Supports MCP, Agent Skills, AGENTS.md, and runs as both an ACP agent and client.

Hermes Agent

Model-agnostic personal agent across CLI, desktop and messaging apps. Learns across sessions and writes reusable skills from its own work.

Is Cursor or Hermes Agent open source?: Cursor is proprietary. Hermes Agent is open source.
Do Cursor and Hermes Agent support MCP servers?: Cursor: yes. Hermes Agent: not verified yet.
Can I reuse Agent Skills between Cursor and Hermes Agent?: Yes. Both read the open Agent Skills (SKILL.md) format, so the same skill folder works in both.

Reviewed Oct 5, 2026.