Behavior Trees

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

• Connection: Computer or cloud
• Transport: stdio, Streamable HTTP
• Category: Developer tools

Install

Pick the AI app you use, then copy the settings.

You need

• Runs in the cloudNothing to install; it connects over the internet
• npmNode.js installed (for the npx command)

Which app do you use?

https://www.behaviortrees.com/mcp

{
  "mcpServers": {
    "behaviortrees": {
      "command": "npx",
      "args": [
        "-y",
        "behaviortrees",
        "mcp"
      ]
    }
  }
}

claude mcp add --transport http behaviortrees https://www.behaviortrees.com/mcp

claude mcp add behaviortrees -- npx -y behaviortrees mcp

{
  "mcpServers": {
    "behaviortrees": {
      "url": "https://www.behaviortrees.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "behaviortrees": {
      "command": "npx",
      "args": [
        "-y",
        "behaviortrees",
        "mcp"
      ]
    }
  }
}

{
  "servers": {
    "behaviortrees": {
      "type": "http",
      "url": "https://www.behaviortrees.com/mcp"
    }
  }
}

{
  "servers": {
    "behaviortrees": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "behaviortrees",
        "mcp"
      ]
    }
  }
}

https://www.behaviortrees.com/mcp

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These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

• validate_tree

  Checks a behavior tree for errors: missing or dangling children, nodes with two parents, cycles, decorators with more than one child, leaves with children, unknown node names, and BehaviorTree.CPP import problems. Returns valid (true when there are no errors), the trees found, an

• create_editor_link

  Returns a url that opens the tree in the behaviortrees.com editor in the user's browser, auto-laid-out and editable, with no account needed. The tree travels inside the link (the URL fragment), so nothing is uploaded or stored. Fails with the validation errors if the tree has any

• convert_tree

  Convert between behavior3 JSON and BehaviorTree.CPP XML (v4 for ROS 2 Jazzy and Groot2, v3 for ROS 2 Humble), the same way the editor imports and exports. Returns the converted text and any issues (BT.CPP has no equivalent for some behavior3 nodes and vice versa).

• list_node_types

  The built-in behavior3 nodes a tree can use without declaring them: composites (Sequence, Priority = selector/fallback, MemSequence, MemPriority), decorators (Inverter, Repeater, MaxTime, ...) and leaves (Wait, Succeeder, Failer, ...), with descriptions and default properties.

• get_example

  Complete, working example trees (enemy patrol, cooldown-gated attacks, robot navigation with recovery, and more) to learn the format from or start with. Without an id, lists the examples; with an id, returns that tree as behavior3 JSON.

• read_guide

  Practical guides from behaviortrees.com/learn as Markdown: what behavior trees are, node types, blackboards, debugging, structuring large trees, and behavior trees in Unity, Unreal, Godot, Python and robotics (BehaviorTree.CPP, ROS 2, Nav2). Without a slug, lists the guides.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified with the GitHub account behaviortrees, which owns the repo

• … Not checked yet

  Still maintained

  We have not read this repo from GitHub yet

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• ✓ Pass

  Endpoint responds

  Responded in 195 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 6 tool descriptions and found no hidden instructions to the AI

Compared with others in Developer toolsi

• More stars than 0% of the other 4907 servers in this category
• Published to the registry more recently than 89% of the other 4907 servers in this category
• Basic checks equal to or better than 100% of the other 4907 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

README from the maker

npx behaviortrees validate tree.json

https://www.behaviortrees.com/mcp

{

{

import { validateTree, convertTree, createEditorLink } from 'behaviortrees';