Prototype · Preview: every server in the official registry, synced every 30 minutes. Sign in with Google to write reviews.Prototype · updated every 30 min
PopNx MCPMCP servers for people who use AI · explained in plain words

Behavior Runtime MCP

by putervisionversion 0.4.1i★ 8iRuns on your computer
Registry nameio.github.putervision/behavior-mcp

How to install

What it does

In-browser ~60Hz behavior tree execution engine with reactive triggers and blackboard projection.

  • Connects Runs on your computer
  • Account or key No key needed
  • Category Web & browsers

Install

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

Passed 3/3 checks · Runs on your computer

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  3. Paste these settings and save the file

    Checking the commands · copy buttons appear once they pass

  4. Quit Claude and open it again

  5. Try it

    Use Behavior Runtime MCP and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Behavior Runtime MCP or shows a Behavior Runtime MCP tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Behavior Runtime MCP yet

Behavior Runtime MCP runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Behavior Runtime MCP

  • Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • Install Node.js on your computer first (one time)
  • Install Node.js on your computer first (one time)
  • Install Node.js on your computer first (one time)

B · Others in Web & browsers that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code, with some setup first

Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  3. Paste this command and press Enter

    Checking the commands · copy buttons appear once they pass

  4. Type /mcp in Claude Code

    You should see Behavior Runtime MCP listed as connected

  5. Try it

    Use Behavior Runtime MCP and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Behavior Runtime MCP or shows a Behavior Runtime MCP tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Click this button to open Cursor

    Checking the commands · copy buttons appear once they pass

  3. Open the AI chat in Cursor in Agent mode

  4. Try it

    Use Behavior Runtime MCP and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Behavior Runtime MCP or shows a Behavior Runtime MCP tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Click this button to open VS Code

    Checking the commands · copy buttons appear once they pass

  3. Open the AI chat in VS Code in Agent mode

  4. Try it

    Use Behavior Runtime MCP and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Behavior Runtime MCP or shows a Behavior Runtime MCP tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Behavior Runtime MCP💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

Checking the commands · copy buttons appear once they pass

Claude Desktop (claude_desktop_config.json)

Checking the commands · copy buttons appear once they pass

Cursor (~/.cursor/mcp.json)

Checking the commands · copy buttons appear once they pass

VS Code (mcp.json)

Checking the commands · copy buttons appear once they pass

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

At a glance

Downloads per weeki
166/wk
Connection
Runs on your computer
Latest versioni
0.4.1
Published to registryi
Oct 3, 2026
Code last changedi
Oct 3, 2026
Maker
putervision
Packages
npm: @putervision/behavior-mcp
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 13, 2026

  • ✓ Pass

    Maker matches the repo

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

  • ✓ Pass

    Still maintained

    Code last changed 41 days ago

  • ✓ Pass

    Has a licence

    Uses MIT

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

Sign in with Google to post

User reviews

No reviews yet

Sign in with Google to write a review

Compared with others in Web & browsersi

  • More stars than 91% of the other 1499 servers in this category
  • Published to the registry more recently than 42% of the other 1499 servers in this category
  • Basic checks equal to or better than 100% of the other 1499 servers in this category

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

Common questions

Is Behavior Runtime MCP safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 41 days ago, and the latest version (0.4.1) reached the registry 41 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Browser Use, Scrapling MCP Server, Chrome DevTools MCP

Others in the same category

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

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

Browser Use

Lets AI do web tasks for you, such as filling forms, searching and extracting data, in the maker’s cloud browsers or on your computer.

by browser-useWidely used↓ 1.7M/wk★ 120.8KUpdated 23 days ago

Computer or cloud✓ service owner · browser-use.com

Scrapling MCP Server

Web scraping with stealth HTTP, real browsers, and Cloudflare bypass. CSS selectors supported.

by D4VinciWidely used↓ 396.9K/wk★ 102.1KUpdated 8 days ago

Runs on your computer

Chrome DevTools MCP

Lets AI use Chrome’s developer tools to inspect pages, find what makes them slow and spot errors. Made by the Chrome DevTools team.

by ChromeDevToolsWidely used↓ 1.9M/wk★ 55.2KUpdated 2 days ago

Runs on your computer

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@putervision/behavior-mcp

High-Frequency (~60Hz) In-Browser Behavior Tree Tactical Runtime Engine for AI Agents

@putervision/behavior-mcp is a Model Context Protocol (MCP) server that executes deterministic behavior trees directly in browser runtimes at ~60Hz with reactive trigger preemption, frame recordings, SHA-256 Merkle audit chains, and a 5-layer safety guardrail stack.

🌐 Official Documentation: putervision.com • Interactive Web Docs


⚡ 15-Second Quick Start

# 1. Initialize runtime & seed default behavior trees in your workspace

npx @putervision/behavior-mcp init

2. Run system diagnostic and health checks

npx @putervision/behavior-mcp doctor

3. Inspect active executions, blackboard state, and reactive triggers

npx @putervision/behavior-mcp inspect


🛠️ 10 Core MCP Tools

ToolActionsPurpose
load_behaviorload, unload, swapInject, initialize, or hot-swap a behavior tree in browser runtime
set_parametersset, get, resetDynamically update or query runtime execution parameters
get_statuscurrent, history, tree_stateQuery active status, node traversal path, tick count, duration
abort_behaviorabort, pause, resumeHalt, pause, or resume behavior execution safely
register_triggerregister, listConfigure reactive interrupt triggers with priority preemption
replay_recordingcapture, listCapture or inspect deterministic browser action sequences
get_metricscurrent, historyRetrieve runtime telemetry, tick durations, and stuck events
manage_behaviorsregister, get, listCRUD for immutable behavior tree JSON with SHA-256 tree hashes
manage_blackboardget, setRead, write, or query shared behavior tree blackboard variables
manage_runtime_dbstats, audit, snapshot, restoreSQLite diagnostics, SHA-256 Merkle audit, and checkpoint rollback

🛡️ 5-Layer Safety Guardrail Stack & System 1 Invariants

  1. Fail-Closed Evaluator: Unrecognized node definitions throw fatal exceptions immediately.
  2. 60Hz Tick Invariant & Synchronous `semantic_check`: The loop never blocks on external network calls; semantic condition checks resolve synchronously against blackboard caches.
  3. HMAC Intention Gate Verification: Intentions dispatched to execution nodes require unexpired, cryptographically signed dispatch tokens (PENTAD_HMAC_SECRET).
  4. Action Rate Limiter & Leaf Policy Gate: Strict 60 actions/sec maximum throughput ceiling and policy guardrails blocking irreversible mutations.
  5. Emergency Kill Switch & Watchdog Heartbeat: Atomic safety latch and watchdog timers halting execution if tick stalls beyond 5,000ms.

📚 Deep Documentation Guides

  • 📖 [Formal API Reference](docs/api-reference.md): Full parameter tables, type definitions, and tool schemas.
  • 💡 [Core Architecture & Concepts](docs/concepts.md): Behavior tree execution model, ~60Hz loop, and trigger lifecycle.
  • 🖥️ [CLI Usage Guide](docs/cli-usage.md): Complete CLI command reference (init, doctor, inspect, run).
  • 💾 [Database Schema](docs/database-schema.md): SQLite table structures, indexes, and Merkle audit ledger.
  • ⚙️ [Configuration Reference](docs/configuration.md): .behavior-mcp.json parameters and environment variables.

🔗 Client Configuration & Environment

Add to .cursor/mcp.json or .vscode/mcp.json:

{

"mcpServers": { "behavior-mcp": { "command": "behavior-mcp", "args": ["run"], "env": { "PENTAD_HMAC_SECRET": "your-secure-shared-secret-here" } } } }


🧪 Testing

# Run full unit and integration test suite across 38 test files (266 tests)

npm test


📄 License

MIT © PuterVision