DEV Community: 0n

0nMCP v3.0.0 — 1,466 AI Tools Across 101 Services. Free. Open Source. One Install.

0n — Fri, 03 Apr 2026 10:00:21 +0000

Your AI just got 1,466 hands.

0nMCP v3.0.0 shipped today. One npx command gives Claude, GPT, Gemini, Cursor, or VS Code access to 1,466 tools across 101 services.

No API glue code. No YAML configs. No per-service plugins.

npx 0nmcp@latest

That's it. Done.

What's new in v3.0.0

Slack — 42 endpoints

Messages, channels, files, reactions, bookmarks, reminders, canvases, search, team management. Full Slack API.

Square — 58 endpoints

Payments, invoices, subscriptions, loyalty programs, gift cards, bookings, team, multi-location. The entire Square ecosystem.

WooCommerce — 42 endpoints (NEW)

Products, orders, customers, coupons, categories, reports, shipping, taxes, refunds. WordPress e-commerce fully wired.

Pipedrive — 88 endpoints

Deals, persons, organizations, activities, pipelines, stages, products, leads, goals, projects, files, mail, webhooks, subscriptions, users, filters.

The numbers

Metric	Value
Total tools	1,466
Services	101
CRM tools	245 (12 modules)
Patents pending	5
License	MIT
Local cost	$0

Free security tool

The March 2026 axios supply chain attack compromised thousands of npm installs. 0nDefender would have blocked it at the preinstall step.

Secure your Claude Desktop for free: 0nmcp.com/secure-claude

0nSeal: Lockfile integrity (preinstall hook)
0nWatch: Supply chain monitor
0nVaultGuard: API key health checks
0nAlert: Real-time threat notifications

Free website audit

Enter any URL. Get an SXO score in 5 seconds. 10 checks: speed, meta, OG, security headers, mobile, schema, images, headings, links, HTTPS.

Try it: 0nmcp.com/audit

Install

Claude Desktop:

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": ["-y", "0nmcp@latest"]
    }
  }
}

Claude Code:

claude mcp add 0nmcp -- npx -y 0nmcp@latest

npm:

npm install -g 0nmcp

Why this matters

Every other MCP server connects to one service. 0nMCP connects to 101.

Every other MCP server requires manual configuration. 0nMCP requires zero config.

Every other MCP server stores credentials in plaintext. 0nMCP uses AES-256-GCM vault encryption with hardware fingerprint binding.

5 US provisional patents protect the architecture. MIT licensed. Free forever.

Get started | Secure Claude | Free Audit

RocketOpp LLC · 0nMCP v3.0.1 · 1,466 tools · 101 services · 5 patents pending

How I Would Have Stopped the March 2026 Axios Supply Chain Attack (Free Tool Inside)

0n — Thu, 02 Apr 2026 14:46:53 +0000

On March 31, 2026, attackers published compromised versions of axios — npm's most downloaded HTTP client — containing a Remote Access Trojan hidden in a transitive dependency. The payload exfiltrated environment variables, SSH keys, and API credentials from every developer who ran npm install.

I run an MCP server with API keys for 55 connected services. When I saw the advisory, I realized how exposed the entire AI tool ecosystem is to supply chain attacks.

So I built 0nDefender.

The Key Insight: Timing

Most security tools scan AFTER packages are installed. The axios attack used a postinstall script — by the time your scanner runs, the malicious code has already executed.

0nDefender's core mechanism is a preinstall hook. It runs BEFORE npm resolves, downloads, or installs anything.

{
  "scripts": {
    "preinstall": "npx 0nmcp@latest defender scan --lockfile"
  }
}

The hook reads package-lock.json, cross-references against known malicious versions, pattern-matches against typosquatter names, and blocks anything suspicious.

axios@1.14.1 would have been blocked. plain-crypto-js would never have been downloaded. The RAT would never have executed.

4 Security Layers

0nSeal — The preinstall hook. Prevention at the gate.

0nWatch — Continuous scanning against npm advisory database and GitHub Security Advisories. Every 6 hours.

0nVaultGuard — Health-checks every API key via zero-knowledge probing. Keys never leave your machine. Every 12 hours.

0nAlert — Real-time notifications via email, Slack, or Discord.

Why MCP Servers Are High-Value Targets

If you run a Claude Desktop MCP server, your environment probably contains API keys for AI providers, payment processors, databases, CRMs, email services, and cloud infrastructure. One compromised npm package = access to all of them.

Install in 60 Seconds

npm install -g 0nmcp
0nmcp engine verify

Add to Claude Desktop config:

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": ["-y", "0nmcp"]
    }
  }
}

Free. Open source. MIT licensed. No sign-up. No telemetry.

Full writeup: 0nmcp.com/secure-claude

Source: github.com/0nork/0nMCP

Built by RocketOpp LLC. Non-funded. Non-seeded. Just building what the ecosystem needs.

I Built the First-Ever Figma to WordPress Plugin Converter

0n — Thu, 26 Mar 2026 23:32:48 +0000

The Problem

Designers use Figma. Developers use WordPress. The handoff between them wastes weeks.

Every time a designer finishes a Figma file, a developer has to:

Manually extract colors, fonts, spacing
Rebuild everything in CSS
Create WordPress templates from scratch
Build custom blocks that match the design

What if you could skip all of that?

OnPress — Figma to WordPress in Seconds

I built OnPress — a tool that extracts your entire design system from Figma and generates a production-ready WordPress theme or plugin.

What it extracts:

Every color → CSS variables + Customizer controls
Every font → Google Fonts imports + typography rules
Spacing values → spacing scale variables
Border radii → radius variables
Drop shadows → CSS shadow classes
Components → WordPress blocks + shortcodes
Auto-layout → CSS flexbox

What it generates:

WordPress Theme:

style.css with design tokens as CSS variables
functions.php with Customizer controls, nav menus, widget areas
Complete template set (header, footer, index, single, page, 404, search, archive)
Google Fonts auto-imported
Editor color palette from your Figma colors
Responsive breakpoints

WordPress Plugin (first ever):

Custom Gutenberg blocks from your Figma components
Shortcodes for every component
Admin settings page with color pickers for every design token
REST API endpoints
Works with any existing theme

Two Ways to Use It

1. Figma Plugin

Install OnPress inside Figma → select your frames → click "Generate" → download a WordPress-ready ZIP.

2. WordPress Plugin

Install OnPress on your WordPress site → paste any Figma share link → extract and generate directly from your dashboard. No Figma account needed.

How It Works Under the Hood

The Figma plugin uses the Figma Plugin API to walk the entire document tree:

// Extract every design token
const colors = figma.getLocalPaintStyles();
const typography = figma.getLocalTextStyles();
const effects = figma.getLocalEffectStyles();

// Walk every node recursively
function walkTree(node, callback) {
  callback(node);
  if ("children" in node) {
    for (const child of node.children) {
      walkTree(child, callback);
    }
  }
}

The WordPress plugin hits the Figma REST API with a personal access token:

$response = wp_remote_get("https://api.figma.com/v1/files/{$file_key}", [
    "headers" => ["X-Figma-Token" => $token],
]);
$design_system = OnPress_Extractor::extract($file_data);
$generator = new OnPress_Theme_Generator($design_system, $slug, $name);
$result = $generator->install(); // Writes directly to wp-content/themes/

The generated theme includes real Customizer integration — every Figma color becomes an adjustable color control:

add_theme_support("editor-color-palette", [
    ["name" => "Brand Primary", "slug" => "brand-primary", "color" => "#7ed957"],
    ["name" => "Background", "slug" => "background", "color" => "#0A0E17"],
]);

Launch Pricing

I am offering OnPress at $49/year for the first 100 users (normally $149). This includes:

Figma plugin (unlimited conversions)
WordPress plugin (paste any Figma URL)
Theme generator + plugin generator
All future updates
7-day money-back guarantee

Get OnPress →

Open Source

Both plugins are on GitHub:

Figma Plugin: Crypto-Goatz/onpress
WP Plugin: Crypto-Goatz/onpress-wp

Built by 0nMCP — the Universal AI API Orchestrator.

Would love feedback. What design tokens would you want extracted that I am missing? Drop a comment.

Why Every Business Needs an MCP Server in 2026

0n — Wed, 25 Mar 2026 02:58:48 +0000

The way businesses connect to AI is changing — and in 2026, the companies that understand MCP servers will have a decisive infrastructure advantage over those that don't.

Whether you're a founder, a digital agency owner, or a director of operations, this post breaks down exactly what an MCP server is, why it matters for business automation, and how to position your organization to leverage it before your competitors do.

What Is an MCP Server? (And Why You Should Care)

MCP stands for Model Context Protocol — an open standard developed to let AI models like Claude, GPT-4, and Gemini securely connect to external tools, databases, APIs, and services in real time.

Think of an MCP server as the operating system layer between your business data and AI intelligence.

Without an MCP server, AI assistants operate in an information vacuum. They can generate text, answer questions, and analyze documents — but they can't act on your business in real time.

With an MCP server, all of that changes. An MCP server turns a passive AI assistant into an active AI agent — one that can retrieve live data, execute workflows, manage files, interact with third-party platforms, and return contextually accurate responses grounded in your business reality.

The Problem: AI Without Context Is Just a Chatbot

Most small and mid-sized businesses are still using AI in "clipboard mode" — copy a prompt in, copy an answer out. The AI doesn't know who your customers are. It doesn't know your service catalog, your CRM status, your open invoices, or your internal SOPs.

AI automation without business context produces generic output.

MCP servers solve this by giving AI models persistent, permissioned access to the systems that matter to your business.

5 Reasons Every Business Needs an MCP Server in 2026

1. Real-Time Data Access Transforms AI From Tool to Team Member

With an MCP server properly configured, your AI can query live data — not a six-month-old training snapshot. Real CRM records. Real revenue figures. Real pipeline status.

When a sales rep asks your AI, "What's the status of the Johnson proposal?" — it should know. It should pull the record, check the last activity, and surface the next recommended action. That's only possible through an MCP server.

2. Business Automation Moves From Scheduled to Intelligent

Traditional business automation is rule-based and brittle. AI automation through an MCP server is different — your AI reasons about context, interprets ambiguous situations, and adapts. The difference between a macro and a teammate.

3. Your Competitive Moat Becomes Your Data Layer

In 2026, the businesses with the highest AI leverage aren't the ones using the best model — they're the ones with the best-connected model. An MCP server feeds your proprietary data moat into your AI infrastructure in ways generic GPT access cannot replicate.

4. Agentic Workflows Replace Human Bottlenecks

MCP-powered agentic workflows include:

Auto-drafting proposals from CRM trigger events
Monitoring and flagging metric anomalies
Routing and qualifying inbound leads
Generating weekly performance reports from live analytics
Executing onboarding sequences triggered by contract signatures

5. AI Cost Efficiency Scales With Context Quality

Better context = better outputs = lower cost per result. Businesses with well-configured MCP servers consistently report faster task completion and dramatically reduced per-task AI spend.

What Does an MCP Server Connect To?

CRM platforms (HubSpot, Salesforce, and more)
Project management (Asana, Notion, Linear)
Billing systems (Stripe, Shopify, QuickBooks)
Analytics dashboards (GA4, Amplitude)
Internal documentation and SOPs

MCP Servers Are Infrastructure, Not a Feature

An MCP server is not a feature you enable in a SaaS dashboard. It is infrastructure — the same way a database or API gateway is infrastructure.

Businesses that treat AI as a collection of one-off tools will continue to get one-off results. Businesses that treat AI as a connected layer of their operational stack — with a proper MCP server at the center — will compound their efficiency gains year over year.

In 2026, the question is no longer "Should we use AI?" Everyone is using AI. The question is: Is your AI connected to anything that matters?

Ready to Deploy Your MCP Server?

At RocketOpp, we build and deploy custom MCP server infrastructure for small businesses and digital agencies. Our Rocket+ platform includes 50+ pre-built tools — deployable in days, not months.

Talk to us about your MCP infrastructure →

Published by Mike Mento Jr., Founder & CEO of RocketOpp LLC. RocketOpp builds AI-powered business automation systems for SMBs and digital agencies.

How to Build an AI Employee Using MCP and Claude

0n — Tue, 24 Mar 2026 21:38:30 +0000

What if your AI assistant could actually DO things — not just talk about them?

With MCP (Model Context Protocol) and 0nMCP, you can build an AI employee that:

Responds to customer messages automatically
Scores leads and updates your CRM
Creates invoices and sends them
Posts to social media on schedule
Generates reports from your data

Here's how.

The Architecture

You (or a trigger) → Claude/AI → 0nMCP → APIs → Results

A trigger fires (new message, schedule, webhook)
Claude receives the context
0nMCP executes the required API calls
Results flow back

Example 1: Auto-Responder

When a customer sends a message to your CRM:

Webhook fires → hits your endpoint
Claude reads the message + contact history
Claude generates a personalized response
0nMCP sends the response via CRM API

All automatic. Response time: under 10 seconds.

Example 2: Lead Scorer

When a new contact is created:

CRM webhook fires
Claude analyzes: email domain, title, company, source
Assigns a score 0-100
0nMCP updates the contact with the score and tags

High-score leads get tagged "hot" and assigned to sales immediately.

Example 3: Content Creator

On a daily schedule:

Cron triggers the workflow
Claude generates a LinkedIn post based on your voice profile
0nMCP posts it via the social media API
Done — fresh content every day without lifting a finger

Setting It Up

Step 1: Install 0nMCP

npm install -g 0nmcp

Step 2: Connect Your Services

Add credentials for the services your AI employee needs:

CRM for contacts and conversations
Stripe for invoicing
Slack for notifications
SendGrid for emails

Step 3: Create a Workflow

Save this as auto-responder.0n:

{
  "$0n": {
    "type": "workflow",
    "version": "1.0.0",
    "name": "Auto Responder"
  },
  "trigger": {
    "type": "webhook",
    "config": { "path": "/hooks/auto-respond" }
  },
  "steps": [
    {
      "id": "step_001",
      "service": "anthropic",
      "action": "chat_completion",
      "params": { "model": "claude-sonnet-4-20250514", "messages": [{"role": "user", "content": "Generate a reply to: {{inputs.message}}"}] },
      "output": "reply"
    },
    {
      "id": "step_002",
      "service": "crm",
      "action": "send_message",
      "params": { "contactId": "{{inputs.contactId}}", "type": "Email", "message": "{{step_001.output.response}}" }
    }
  ]
}

Step 4: Run It

0nmcp run auto-responder.0n

Your AI employee is now live.

The Cost

0nMCP is free and open source. The only cost is the AI API calls (Claude/OpenAI) — typically $0.01-0.05 per execution.

For a business running 100 automated actions per day, that's about $3/month.

Get Started

npm install -g 0nmcp — your first AI employee starts today.

MCP vs Traditional API Integration: Why MCP Wins

0n — Tue, 24 Mar 2026 21:35:57 +0000

If you're connecting AI to external services, you have two choices: traditional API integration or MCP (Model Context Protocol).

Here's why MCP wins every time.

The Traditional Way

Read the API docs
Write authentication logic
Build request/response handlers
Handle errors, retries, rate limits
Test everything
Maintain it forever

Time: Days to weeks per service.

The MCP Way

Install 0nMCP: npx 0nmcp
Add your API key
Done

Time: 5 minutes. For 54 services.

Side-by-Side Comparison

	Traditional API	MCP (0nMCP)
Setup time	Days-weeks	5 minutes
Services supported	1 per integration	54 built-in
Authentication	Manual per service	Automatic
Error handling	Build your own	Built-in
Rate limiting	Build your own	Built-in
AI integration	Custom code	Native
Maintenance	Ongoing	Zero
Cost	Developer hours	Free

Why MCP Exists

Anthropicbuilt MCP because every AI application was solving the same problem: how do I connect my AI to external services?

Before MCP:

Every app built custom integrations
Every integration broke independently
Switching AI providers meant rewriting everything

With MCP:

One protocol for all tools
One server for all services
Switch AI providers, keep your tools

What 0nMCP Adds

0nMCP is the most comprehensive MCP server available:

945 tools across 54 services
Encrypted vault for API keys (AES-256-GCM)
Workflow runtime for chaining tools
Natural language execution — describe what you want
Works with Claude, Cursor, Windsurf, and any MCP client

Real Example

Traditional way to create a Stripe customer and notify Slack:

// 50+ lines of code: imports, auth, error handling, two API calls
const stripe = require("stripe")(process.env.STRIPE_KEY)
const { WebClient } = require("@slack/web-api")
const slack = new WebClient(process.env.SLACK_TOKEN)

try {
  const customer = await stripe.customers.create({ email })
  await slack.chat.postMessage({ channel: "#sales", text: `New customer: ${email}` })
} catch (err) { /* handle errors */ }

MCP way:

"Create a Stripe customer for john@example.com and notify #sales on Slack"

Done. Two API calls, handled automatically.

Get Started

npm install -g 0nmcp

How to Connect Claude to Any API Using MCP (Step-by-Step)

0n — Tue, 24 Mar 2026 21:35:03 +0000

Want Claude to send emails, create invoices, manage your CRM, or post to Slack? You need MCP — the Model Context Protocol.

This guide shows you how to connect Claude Desktop to any API in under 5 minutes using 0nMCP.

What is MCP?

MCP (Model Context Protocol) is the standard that lets AI assistants like Claude use external tools. Think of it as USB for AI — one protocol, unlimited devices.

Step 1: Install 0nMCP

npm install -g 0nmcp

Or use npx (no install needed):

npx 0nmcp

Step 2: Add to Claude Desktop

Open your Claude Desktop config:

Mac: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

Add this:

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": ["-y", "0nmcp"]
    }
  }
}

Restart Claude Desktop.

Step 3: Connect Your Services

Tell Claude: "Connect my Stripe account"

Or manually create connection files in ~/.0n/connections/:

{
  "$0n": { "type": "connection", "name": "stripe" },
  "service": "stripe",
  "auth": { "credentials": { "apiKey": "sk_live_..." } }
}

Step 4: Use It

Now just talk to Claude naturally:

"Create a Stripe customer for sarah@example.com"
"Send a Slack message to #general: Deploy complete"
"List my last 10 GitHub issues"
"Add a row to my Google Sheet with today's metrics"

Claude uses 0nMCP to execute the API calls behind the scenes.

Supported Services (54 total)

Category	Services
Communication	Slack, Discord, Twilio, SendGrid, Gmail
Payments	Stripe, Square, QuickBooks
CRM	HubSpot, Pipedrive, custom CRM
Databases	Supabase, MongoDB, Airtable, Notion
Developer	GitHub, Linear, Jira, Vercel
AI	OpenAI, Anthropic
Social	LinkedIn, Twitter, Instagram
Google	Sheets, Drive, Calendar, Ads

Also Works With

Cursor — Add to .cursor/mcp.json
Windsurf — Add to Windsurf MCP settings
Claude Code — Already works via stdio

Free and Open Source

Get started: npx 0nmcp

I Built an MCP Server with 945 Tools — Here's What I Learned

0n — Tue, 24 Mar 2026 21:32:20 +0000

Every AI tool I use — Claude, Cursor, Windsurf — they all speak the same protocol now: MCP (Model Context Protocol).

But here's the problem: connecting each service requires writing a separate MCP server. Stripe needs one. Slack needs one. Your CRM needs one. That's dozens of servers to maintain.

So I built 0nMCP — one universal MCP server that connects to 54 services with 945 tools.

What is 0nMCP?

It's an npm package. Install it, configure your API keys, and suddenly your AI can:

Send emails via SendGrid
Create Stripe customers and invoices
Post to Slack, Discord, and 50 other services
Manage CRM contacts, pipelines, and appointments
Query databases (Supabase, MongoDB, Airtable)
Generate content with OpenAI and Anthropic
Manage GitHub repos, issues, and PRs
Schedule meetings via Calendly and Google Calendar

All through natural language.

npm install -g 0nmcp

How It Works

Add it to your Claude Desktop config:

{
  "mcpServers": {
    "0nMCP": {
      "command": "npx",
      "args": ["-y", "0nmcp"]
    }
  }
}

That's it. Claude now has access to 945 tools.

Say: "Create a Stripe customer for john@example.com, send them a welcome email via SendGrid, and notify #sales on Slack"

0nMCP handles 3 API calls in 2 seconds. Zero code.

The 54 Services

Communication: Slack, Discord, Twilio, SendGrid, Gmail, Microsoft Teams
CRM & Sales: HubSpot, Pipedrive, custom CRM (245 tools alone)
Payments: Stripe, Square, QuickBooks, Plaid
AI: OpenAI, Anthropic
Developer: GitHub, Linear, Jira, Vercel, Cloudflare
Data: Supabase, MongoDB, Airtable, Notion, Google Sheets
Social: LinkedIn, Twitter/X, Instagram, Reddit, TikTok
Marketing: Mailchimp, SendGrid, SmartLead
Advertising: Google Ads, Facebook Ads, LinkedIn Ads, TikTok Ads
E-Commerce: Shopify
Scheduling: Calendly, Zoom, Google Calendar
...and more.

What Makes It Different

1. Natural Language Execution
You don't write API calls. You describe what you want. The AI orchestrator plans and executes.

2. Encrypted Vault
All API keys stored with AES-256-GCM encryption. Your credentials never leave your machine unencrypted.

3. Workflow Runtime
Chain multiple tools into .0n workflow files. Run them on schedule, via webhook, or manually.

4. Works Everywhere
Claude Desktop, Cursor, Windsurf, Gemini, Continue, Cline, OpenAI — any MCP client.

The Numbers

What	Count
Total Tools	945
Services	54
Categories	22
CRM Tools	294
Vault Encryption	AES-256-GCM
License	MIT
Price	Free

Getting Started

# Install globally
npm install -g 0nmcp

# Or run directly
npx 0nmcp

# Start HTTP server mode
0nmcp serve --port 3000

Configure your services in ~/.0n/connections/:

{
  "$0n": { "type": "connection", "name": "stripe" },
  "service": "stripe",
  "auth": { "credentials": { "apiKey": "sk_live_..." } }
}

Open Source

MIT licensed. Free forever. Built by RocketOpp LLC — an 0n Company.

GitHub: github.com/0nork/0nMCP
npm: npmjs.com/package/0nmcp
Website: 0nmcp.com

If you're building with MCP, try it: npx 0nmcp

Would love feedback from the community. What services should we add next?