King has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.

How do I install King?

King can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with King?

King is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.

Is King actively maintained?

King is actively maintained — last commit was 10 days ago. It has 14 GitHub stars.

King

Name: King
Author: Intelligent-Intern

by Intelligent-Intern

This Repo is a mono repo for the king extension and the kingrt video call system. If you want to run the video call on a server you need to install the king-ext and then just use demo/video-chat. Kingrt can be testet on kingrt.com

14 0 tools GitHub

No known CVEs

MIT license

Actively maintained

Last commit 10d ago

Works with most clients

Transport: stdio

0 tools

Grade F

Edit this pageView history

Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "king": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/king)](https://mcppedia.org/s/king)

Read me

What King does

Systems-grade networking and infrastructure primitives for PHP

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

39/100across 5 weighted dimensions

How we score →

0255075100

−61

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is King safe to use?: King has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install King?: King can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with King?: King is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is King actively maintained?: King is actively maintained — last commit was 10 days ago. It has 14 GitHub stars.

Similar servers

Others in communication

View all →

Mac_messages_mcp95

An MCP server that securely interfaces with your iMessage database via the Model Context Protocol (MCP), allowing LLMs to query and analyze iMessage conversations. It includes robust phone number validation, attachment processing, contact management, group chat handling, and full support for sending and receiving messages.

279 4

Mcp_agent_mail94

Asynchronous coordination layer for AI coding agents: identities, inboxes, searchable threads, and advisory file leases over FastMCP + Git + SQLite

2.0k 6

Autotask Mcp93

MCP server for Kaseya Autotask PSA — 39 tools for companies, tickets, projects, time entries, and more

36 7

Agenticmail92

Email & SMS infrastructure for AI agents — send and receive real email and text messages programmatically

126 7

MCP Security Weekly

Get CVE alerts and security updates for King and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Communication

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "king": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/king)](https://mcppedia.org/s/king)

Read me

What King does

Systems-grade networking and infrastructure primitives for PHP

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

King PHP Extension

Systems-grade networking and infrastructure primitives for PHP

King turns PHP into a systems platform for transport-heavy, realtime, infrastructure-aware software. Instead of pushing critical networking, orchestration, discovery, storage, and control-plane work into sidecars, gateways, or glue layers, King keeps that work inside one native runtime that is directly available to PHP.

That changes what PHP can be used for. With King, PHP is no longer limited to short request handlers and thin application wrappers. It can own live sessions, streams, protocol state, routing decisions, telemetry, persistence, scaling signals, and cluster-facing workflows in one coherent runtime model.

The current line is beta. The repo-local baseline is green, the multi-backend object-store and control-plane surfaces are real, and the remaining closure work is now about narrower hardening, distributed-operating proof, and multi-node fleet behavior rather than placeholder subsystem stories.

If you do not have a Hetzner account yet, it is time to fix that. Use the Hetzner Cloud referral link and you help support the live infrastructure tests that keep King honest.

How To Install And Run It

For a repository-local build:

git clone --recurse-submodules https://github.com/Intelligent-Intern/king.git
cd king
./infra/scripts/build-profile.sh release
php -d extension="$(pwd)/extension/modules/king.so" -r 'echo king_version(), PHP_EOL;'

That gives you the extension plus the matching QUIC runtime artifacts for the local release profile. If you only want the extension build, use ./infra/scripts/build-extension.sh.

If you want the beginner path from zero to a local WebSocket roundtrip, start with documentation/getting-started.md.

King also ships a PIE install path. PIE is the successor to PECL. Tagged releases that publish the matching PIE source asset can be installed with pie install intelligent-intern/king-ext. Packaging details and local verification steps live in documentation/pie-install.md.

Small But Oho

One good first King application is this:

clients subscribe over WebSocket to /watch?bucket=inbox
an uploader sends POST /upload?bucket=inbox&object=demo.txt
the application stores the file in the object store
every subscriber for that bucket immediately gets a realtime notification

The event looks like this:

{
  "event": "object.available",
  "bucket": "inbox",
  "object_id": "demo.txt",
  "content_type": "text/plain",
  "size": 1234
}

The important point is that the durable write and the realtime fanout happen in the same native runtime. The object lands in King storage, and the same PHP process can immediately push the event over live WebSocket handles without ha

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

39/100across 5 weighted dimensions

How we score →

0255075100

−61

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is King safe to use?: King has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
How do I install King?: King can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with King?: King is compatible with claude-desktop, cursor, claude-code. It uses stdio transport.
Is King actively maintained?: King is actively maintained — last commit was 10 days ago. It has 14 GitHub stars.