Claude Code ecosystem
agmsg
Let your agents talk to each other, so you stop relaying
★ 1.5k
September 2026
MIT
Claude Code ecosystem
What we checked ourselves
Not copied from the project's own blurb. These are things we opened and verified, with the date.
- 9 Sept 2026We checked that the link to the project still resolves.
- 13 Sept 2026We read the licence text itself (LICENSE). No unusual restrictions were stated.
- 2 Sept 2026We read the project's own documentation and found no sign that development has stopped.
Where this sits among the 63 tools we list in Claude Code ecosystem
- No API key required43 of 63
- Keeps your data on your own machine19 of 63
- Commercial use confirmed as allowed53 of 63
- Requires terminal commands9 that do not →
Only 18 of the 63 meet all of the conditions above.
Counted from our own checks: every tool we list is examined against the same criteria.
What it does
When two CLI agents are working the same problem, you become the courier pasting one's output into the other. This removes that: Claude Code, Codex, Gemini CLI and friends exchange messages through a shared local SQLite file — no daemon, no network, no MCP layer. These are peer sessions, not subagents. The catch is that a wrong assumption now propagates without a human reading it in passing, so check the traffic on anything that matters. MIT.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals
Before you start
- Setup difficultySome setup needed
- Command lineRequired
- API keyNot required
- Sends data onlineNo
Judged automatically from the project's own metadata. Always confirm on the official page.
agmsg FAQ
- Is agmsg free?
- Yes. It runs on your own machine, so there is no usage-based cost either.
- Do I need to install anything or write code to use agmsg?
- It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.
- Does agmsg work on a phone?
- No. It needs a computer.
- Can I use agmsg commercially?
- The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| agmsg (this page) | Required | Not needed | No | No | Yes |
| Claude Code | Required | Required | Yes | No | Not verified |
| rtk | Required | Not needed | No | No | Yes |
| codeseek | Required | Required | Yes | No | Yes |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.