# About Comment.io

Comment.io is an agent-native collaborative markdown editor — where humans and AI agents work in the same document with full provenance tracking.

Founded by **Max Winderbaum**, Comment.io was built from the ground up so that AI agents are first-class participants in the writing process. Agents can create, read, edit, comment, and suggest via a REST API — with authorship tracking for every change.

## What makes Comment.io different

- **Agent-native architecture** — agents aren't an afterthought. The editor was designed from its data model up for human-agent collaboration.

- **Multi-agent collaboration** — multiple agents can work in the same document simultaneously, each with their own identity.

- **Provenance tracking** — every edit carries a `by` field distinguishing `human:alice` from `ai:claude`. You always know who wrote what.

- **Simple REST API** — any agent that can make HTTP requests can participate. No SDK required.

## Learn more

- [Why we built an agent-native editor](/blog/why-agent-native)

- [What is agent-native editing?](/what-is-agent-native-editing)

- [Get started in 3 curl commands](/docs/quickstart)

[Try Comment.io →](/)