Enter Code terminal agent
Updated Enter Code
Summary
Enter Code is a terminal coding agent with an open-source Go SDK, MCP, plan-before-act, and checkpoints.
- Tool
- Enter Code
- Category
- Coding agents
- Date
- Open source
- Yes
- MCP
- Yes
- Pricing
- Not stated in the launch post. The agent SDK is described as open source.
- Sources
On September 18, 2026, Enter announced Enter Code, a coding agent that lives in the terminal. The post says it automates features, debugs, and explores a codebase locally, and that you can install it in about a minute.
The announcement is explicit about MCP: the agent can connect databases, issue trackers, design tools, and APIs through Model Context Protocol servers, then query and write to them during a task. It also describes planning before acting, and a checkpoint system so you can rewind.
Enter says the agent SDK is open source: the core runtime, tool system, permission engine, MCP integration, and checkpoint system. The architecture is a Go workspace with two layers. The root module is a reusable agent runtime SDK. The CLI module injects local implementations and renders the TUI. The same runtime can power a terminal session, an HTTP server via the AG-UI protocol, or a custom integration. The post does not name an OSI license string, so this page does not invent one.
No price is stated in the announcement we cited. Compare it with OpenCode and Aider on the Enter Code hub.
Alternatives
| Tool | License | Pricing note |
|---|---|---|
Enter CodeThis launchTerminal coding agent announced September 18, 2026, with an open-source Go agent SDK and MCP. | Open source | Not stated in the September 18, 2026 announcement. |
OpenCodeOpen-source coding agent from the anomalyco/opencode repository, MIT-licensed, with a terminal client and a site at opencode.ai. | MIT | The client is MIT-licensed. Model access is separate; this page does not quote a hosted plan. |
AiderApache-2.0 terminal pair programmer. The project describes Aider as AI pair programming in your terminal. | Apache-2.0 | Apache-2.0 software. Model access is separate. |
ClineApache-2.0 coding agent published as an SDK, IDE extension, or CLI assistant in the cline/cline repository. | Apache-2.0 | The repository license is Apache-2.0. Model access is separate. |
Questions
What is Enter Code?
Enter Code is a terminal coding agent announced by Enter on September 18, 2026. The post describes an open-source Go agent SDK, MCP support, planning before action, and checkpoints.
Is Enter Code open source?
The announcement says the agent SDK is open source, including the runtime, tools, permissions, MCP integration, and checkpoints. It does not name an SPDX license string in the section we cited, so this page leaves the license field blank.
Filed on Agent Radar. Claims in this note are limited to the sources above.