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49 Agents IDE

#85 agent harnessverified Sep 4, 20260.4.0

Zoomable 2D canvas that puts every agent terminal, editor and git graph from every project and machine on one self-hosted surface

Key differences

Zoomable 2D canvas that puts every agent terminal, editor and git graph from every project and machine on one self-hosted surface

  • Runs local and cloud. Source-available under BUSL-1.1, free for individuals and small teams and converting to MIT on 2030-02-26; self-hosting is free
  • Runs multiple agents. Listed for 165 of 194 tools in this category.
  • Keep in mind: Business Source License 1.1 with an additional use grant for smaller organizations; it converts to MIT on 2030-02-26.

“A heads-up display shows Claude API usage per machine, so now you can watch the money leave from several rooms at once.”

Website Docs 620 starsCompare vs…Dispute a fact
Appeal a claim or request ownership transfer

What it is

49 Agents is a self-hosted workspace for running AI agents in their native CLIs. Instead of tabs and splits it gives you an infinite zoomable canvas where each pane is a real tmux session served over ttyd, with full ANSI colour, scrollback and your own shell config, plus Monaco editor panes, a git graph, Beads issue tables, Markdown notes and Claude status on every pane. Agents on any machine connect to the same canvas over WebSocket with no SSH, a HUD overlays live CPU, RAM and Claude API usage per machine, and broadcast mode types into several terminals at once. It runs from your own hardware over Tailscale, LAN or a self-hosted relay, and no terminal I/O is stored server-side.

Specification

Source verification

Row snapshot checked 2026-09-04. Individual checks below are recorded separately; automated release checks do not verify capabilities or pricing.

overview
Needs individual review
website
Needs individual review
install
Needs individual review
license
Needs individual review
pricing
Needs individual review
capabilities
Needs individual review
models
Needs individual review

Architecture

Type
Agent harness
Runssrc ↗
local, cloud
Platforms
macos, linux, web
Context windowsrc ↗
not documented
Languages
any

Models

Backbonesrc ↗
Claude Code, Codex, any CLI agent
Bring your own model
Yes
Local models
No

Protocols

MCP clientunsourced
No
MCP server
No
OpenAPI tools
No

Capabilities

Terminal commandssrc ↗
Yes
Multi-file edits
Yes
Git operations
Yes
Browser control
No
Sandboxed execution
No
Multi-agent
Yes
Headless / CI
No

Cost

Modelsrc ↗
free
Starts at
$0/mo
Free tier
Yes
Bring your own key
Yes

Source-available under BUSL-1.1, free for individuals and small teams and converting to MIT on 2030-02-26; self-hosting is free

Openness

Open sourcesrc ↗
No
License
BUSL-1.1
First release
unknown
source-availablecanvastmuxmulti-machineself-hostedtailscalebeads

Los Agentes on 49 Agents IDE

Who are they?
The ruling
El JuezThe judge

El Hacker and La Jefa agree on every fact and split on one question: whether a surface with sixty shells behind it is a workspace or an exposure.

Adopt with conditions
Reasoning and trade-offs · AI analysis

El Hacker and La Jefa see the same canvas from opposite ends of a building. He scores it high because it sits on hardware he controls. She scores usefulness low because there is no console and nothing runs when nobody is watching. El Crítico lands the sharper objection: the isolation everyone assumes is not there.

El Hacker wins for the single operator, and La Jefa is overruled on relevance rather than on facts: this was never built for her procurement queue. For sixty people it is not a product yet. Adopt with conditions: one owner per canvas, and a closed network before any agent gets a shell.

Agree with El Juez?
El AmigoThe friend

Pick it when several agent CLIs across more than one machine are already your normal day; pick a single-terminal manager if they are not.

6.8
Reasoning and trade-offs · AI analysis

You will like this if you already run three or four agent CLIs at once and have lost track of which window is which. The deciding trait is the zoomable canvas: panes keep their place in space, so you navigate by memory of where a thing was rather than by cycling tabs. Zoom out, see every project on every machine at once.

It is wrong for you if one repository and one agent is your whole day, because the canvas is overhead you will not pay off. Pick it when you are juggling machines. Pick Agent Deck if a single terminal manager covers you.

reliability
6
usefulness
7
cost
9
longevity
5
Agree with El Amigo?
El CríticoThe critic

Broadcast mode types the same keystrokes into several real shells at once, and nothing documented scopes that to a subset of them.

6.0
Reasoning and trade-offs · AI analysis

The risk is blast radius. Every pane is a real shell with your own config, and broadcast mode types the same keystrokes into several terminals at the same time. One careless line goes to every session, on every machine attached to the canvas. There is no layer between an agent and the box it landed on, and nothing documented that scopes a broadcast to a subset.

What it gets right is the honesty of the surface. Scrollback is real, colour is real, and nothing is re-rendered through a wrapper that loses a character at the wrong moment.

reliability
5
usefulness
6
cost
8
longevity
5
Agree with El Crítico?
El ProfesorThe professor

The layer contributes display rather than inference, and it retains no terminal traffic server-side, which is a design decision rather than a policy.

6.8
Reasoning and trade-offs · AI analysis
  1. The layer asserts no intelligence of its own. Sessions are served as ttyd-backed terminals, so each agent's loop is untouched and what is added is display. 2. Verification is delegated to two artefacts placed beside the session, a git graph and an editor pane, which is a defensible separation of production from inspection.

  2. No evaluation is published, and none is owed, since no capability is asserted. The one claim worth recording is architectural: terminal traffic is not retained server-side, which constrains what a relay can leak.

reliability
7
usefulness
6
cost
8
longevity
6
Agree with El Profesor?
La InversoraThe investor

551 stars, one vendor, no hosted tier and no invoice: the eighteen-month question here is about one maintainer's calendar, not a burn rate.

5.8
Reasoning and trade-offs · AI analysis

551 stars and no invoice anywhere. There is no revenue line to model, which turns the survival question into a question about one maintainer's attention. The obvious business is the relay, since somebody has to host the thing that connects machines, and today the project tells you to host that yourself.

Moat: none a competitor could not rebuild in a quarter, because the value is arrangement rather than capability. Likely acquirer: nobody, though the canvas idea gets copied by whoever ships the next agent dashboard. Position: use it, expect to maintain it.

reliability
5
usefulness
6
cost
8
longevity
4
Agree with La Inversora?
La JefaThe CTO

Zero per seat and no identity story: no SSO, no SCIM, no audit trail, and sixty engineers would each be reaching a live shell through a browser.

5.0
Reasoning and trade-offs · AI analysis

Zero per seat, which ends the finance conversation and starts the operations one. There is no identity story in the row: no SSO, no SCIM, no audit trail, and access is whatever Tailscale or the LAN grants. Sixty engineers sharing one surface means sixty shells reachable from a browser.

It does not run headless, so nothing here becomes a pipeline step I can measure or gate. Onboarding is an afternoon for anyone who already lives in tmux and longer for everyone else. Not yet.

reliability
4
usefulness
4
cost
8
longevity
4
Agree with La Jefa?
El HackerThe tinkerer

BUSL-1.1 with a use grant, converting to MIT on 2030-02-26, and my own logins in every pane; what is missing is anywhere to hang an MCP server.

7.3
Reasoning and trade-offs · AI analysis

BUSL-1.1 is not open source and I will say so, but the additional use grant covers me and the whole thing converts to MIT on 2030-02-26, which is a date I can plan around. Until then I read every line, and my key stays my key, because the agents in the panes are the ones I already pay for.

What I do not get is MCP. There is no client and no server, so the tool servers I run do not attach here. This is a window manager for other people's agents, not a place to hang capability. Local weights are not part of the deal either.

reliability
7
usefulness
7
cost
9
longevity
6
Agree with El Hacker?