Recommended Free Tools
To connect your own MCP server to Claude Code, choose a transport, register the server with claude mcp add, approve it when prompted, and verify it with claude mcp list, claude mcp get, or /mcp. Local servers normally use stdio; hosted services use HTTP. Older SSE-only services remain usable, and WebSocket is available when you need a persistent bidirectional connection.
What an MCP server does in Claude Code
MCP (Model Context Protocol) is an open-source standard for connecting AI applications to external systems. In Claude Code, an MCP server exposes tools, data sources, or workflows so Claude can work with services such as issue trackers, monitoring dashboards, databases, design tools, and messaging systems.
Your server can run as a process on your computer or as a hosted endpoint. Claude Code does not require the server to be a particular programming language; it needs a reachable command or URL and the correct transport declaration.
Choose where and how the server runs
| Transport | Where it runs | When to choose it | Operational notes |
|---|---|---|---|
| stdio | Your machine | Claude Code should launch a local process | Claude starts the command and passes arguments after --. |
| HTTP | Hosted service | Use a remote MCP endpoint | Supports URL-based registration and optional request headers. |
| SSE | Hosted service | An older service exposes only Server-Sent Events | Deprecated where HTTP is available, but still supported for SSE-only services. |
| WebSocket | Hosted service | You need a persistent, bidirectional connection | Inspect status with claude mcp get or /mcp; WebSocket servers do not appear in claude mcp list. |
Prepare Claude Code and the server
- Install and sign in to Claude Code on the machine where you will run it.
- Decide whether the server is local or hosted and identify its transport.
- Have either a launch command (for stdio) or a complete endpoint URL (for HTTP, SSE, or WebSocket).
- Collect any required authentication value. A remote server may require an
Authorizationheader. - Use a trusted workspace. Project-scoped servers can remain pending until the workspace is trusted and you explicitly approve them.
Build or scaffold your own MCP server
If you are starting from an idea rather than an existing implementation, Claude Code’s official mcp-server-dev plugin can scaffold a server. In Claude Code, run:
Free tools Windows power users keep installed
One-click scans. No signup required.
#1 Best Overall
- COMPLETE M6 RACK SCREWS KIT：Includes 45 square rack cage nuts, 45 rack mounting screws and 45 black washers stored in a plastic storage box for easy organization and quick access
- DURABLE CARBON STEEL WITH BLACK NICKEL PLATING：Rack screws and cage nuts are built of carbon steel with black nickel coating to deliver excellent oxidation, rust, corrosion and wear resistance for long-term use in high and low temperature environments
- PRECISE SHARP THREADS FOR SAFE INSTALLATION：Server rack mounting hardware features deep sharp threads and smooth burr-free surface for secure, safe installation of rack and cabinet equipment
- UNIVERSAL COMPATIBILITY FOR SQUARE-HOLE RACKS：M6 x 16mm rack screws fit standard 10mm square-hole racks and cabinets; ideal for mounting servers, switches, routers and A/V equipment in data centers and workspaces
- TIGHT TOLERANCE MANUFACTURING：Conforms to metric standard with less than 0.01mm average error; compact thread structure ensures tight fit, uniform force distribution and resistance against deformation and slipping
/plugin install mcp-server-dev@claude-plugins-officialThen start the builder:
/mcp-server-dev:build-mcp-serverThe builder asks about your use case and scaffolds either a remote HTTP server or a local stdio server. After it creates the project, install that project’s dependencies and test its documented launch command independently before registering it with Claude Code. Keep the server’s source, configuration, and startup instructions together so another developer can reproduce the setup.
Register a local stdio server
Use the general form:
claude mcp add [options] <name> -- <command> [args...]For example, this registers a Python process named myserver:
claude mcp add --transport stdio myserver -- python server.py --port 8080The double hyphen is significant. Everything after it is passed to your server; without it, Claude Code may interpret a server flag such as --port as its own option.
Choose the registration scope
Without a scope option, the command writes a local configuration for the current machine. Add --scope project for a team configuration or --scope user for a server available across that user’s projects.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsclaude mcp add --scope project --transport stdio myserver -- python server.py --port 8080- Local: machine-specific settings; useful for private development tools.
- Project: shared team configuration, commonly represented in a committed
.mcp.json. - User: applies across the user’s projects.
Do not place API keys or other secrets in a committed project file. Supply credentials through the server’s documented environment-variable or header mechanism.
Register a remote HTTP server
For a hosted endpoint, provide the HTTP transport, a name, and the URL:
Rank #2
- 【Powerful Load-bearing】12U Network Rack Open Frame is constructed from durable cold rolled steel; Rack shelf supports enhance stability, wall-mounted capacity of 130lbs, the ground-mounted up to 260lbs
- 【Considerate Designs】Open-frame layout, including a top panel adding space, anti-slip shelf stops fixing devices and compatible racks for stack and expansion to meet requirements of home server rack
- 【Complete Accessories】A 12U open frame server rack, two ventilated shelves, four shelf stops, four velcro straps and a set of equipment mounting screws
- 【Versatile Application】Ideal for space-efficient multi-device setups in warehouses, retail, classrooms, offices and more; Excellent choices as AV Rack/IT Rack
- 【Effortless Setup】 Network Rack includes hardware, a comprehensive manual, mounting hole drilling template and an online assembly video to simplify setup
claude mcp add --transport http notion https://mcp.notion.com/mcpIf the endpoint requires a bearer token, add the header:
claude mcp add --transport http notion https://mcp.notion.com/mcp --header "Authorization: Bearer your-token"Use the same pattern for project or user scope by adding --scope project or --scope user to the command. Confirm which transport the provider documents; a URL alone does not tell Claude Code whether it is HTTP, SSE, or WebSocket.
SSE and WebSocket endpoints
For an older SSE-only service, register it explicitly as SSE:
claude mcp add --transport sse <name> <url>For a WebSocket service, use:
claude mcp add --transport ws <name> <url>Replace the angle-bracketed values with the provider’s actual name and endpoint. If you import a JSON configuration, the URL entry must include a transport type such as http, sse, or ws; otherwise Claude Code interprets the entry as stdio and the connection fails.
Convert another client’s MCP configuration
When you already have instructions for another MCP client, translate the information rather than copying the whole file blindly:
| Source information | Claude Code registration |
|---|---|
| A URL | Use remote HTTP, SSE, or WebSocket, matching the provider’s transport. |
| A launch command | Use local stdio and place every server argument after --. |
An mcpServers block |
Extract one server object and pass it to claude mcp add-json. |
A JSON object for a remote HTTP entry must identify its type. For example:
Rank #3
- 【UNIVERSAL 19-INCH RACK COMPATIBILITY】No more ill-fitting hardware! Our M6 x 16mm fasteners fit all standard 19-inch SERVER RACKS, network cabinets and data centers—seamless lock-in, zero size guesswork, no return risks for mismatched parts. Perfect for your rack mount setup
- 【DURABLE BLACK ZINC-PLATED BUILD】Fight mild rust and stripping! Our RACK MOUNT HARDWARE features thick BLACK ZINC PLATING on carbon steel—resists wear, bending and indoor/semi-outdoor corrosion for 2+ years. Sturdier than generic flimsy fasteners
- 【50-PACK ALL-IN-ONE CAGE NUTS KIT】No mid-install part runs! Our complete 50-pack of CAGE NUTS includes matching M6 screws, washers + FREE self-locking cable ties—exact parts for rack/cabinet builds, no extra hardware store trips
- 【TOOL-FREE SNAP-ON EASY INSTALL】Skip complex tools and slow builds! Our RACK MOUNT SCREWS pair with snap-on cage nuts (hand-installed)—twist in with a basic Phillips driver, no stripping. Finish your rack setup in 10-15 mins, even for first-timers
- 【MULTI-USE RACK ACCESSORY HARDWARE】Max out your setup versatility! This hardware works for all NETWORK AND SERVER RACK ACCESSORIES—small business racks, office cabinets, home labs, audio racks. Washers prevent scratches, cable ties tidy wiring
{
"mcpServers": {
"myserver": {
"type": "http",
"url": "https://example.invalid/mcp"
}
}
}Use the individual server object with claude mcp add-json according to your shell’s quoting rules. Preserve any provider-required headers, but keep secrets out of files that will be committed.
Approve and verify the connection
- From a shell, list configured servers:
claude mcp list- Inspect one server in detail:
claude mcp get myserver- Inside Claude Code, run:
/mcpThese views expose configuration and health information such as connected, authentication required, or failed. A project server may show Pending approval until the workspace is trusted and you approve the server interactively. WebSocket servers are the exception to claude mcp list; inspect them with claude mcp get <name> or /mcp.
Troubleshoot the common failures
Claude treats a remote URL as stdio
Symptom: the server fails immediately or Claude attempts to launch a nonsensical local process.
Cause: the JSON entry has a URL but no transport type.
Fix: add "type": "http", "type": "sse", or "type": "ws", or register it with the matching --transport option.
The server receives no port or other argument
Symptom: a local process starts with defaults or exits because an option is missing.
Rank #4
- Exquisite Material: Our rack mount screws are made of high-quality carbon steel, with high strength, strong durability, and high corrosion resistance, are not easy to deform or break, are reliable and stable, and can maintain good performance in any environment.
- Easy to Install: Cage nuts and screws have clear threads, uniform pitch, and better grip, nylon washers ensure better fixation of the screws, providing you with a smooth and satisfying installation process, the dimensions conform to standardized metric systems, making your work easier and more efficient.
- Easy to Store: All server rack screws and cage nuts are placed in storage boxes with labels and partitions, providing you with clear identification and orderly storage, and can also avoid loss, which is convenient and practical.
- Multi-scenario Application: These rack screws are compatible with most square hole racks and cabinets, suitable for installing various server rack hardware, such as rack server cabinets, server racks, equipment enclosures, A/V equipment enclosures, etc.
- M6 Rack Screw Kit: You will receive 55 pieces of rack mount screws with washers(M6x20mm), and 55 pieces of square cage nuts, sufficient quantity can meet your usage and replacement needs on different occasions, bringing you good Use experience.
Cause: the server arguments were placed before the -- delimiter.
Fix: use claude mcp add --transport stdio name -- command --port 8080; everything after the delimiter belongs to the server.
Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →The project server is pending approval
Symptom: the configuration exists but tools are unavailable.
Cause: the current workspace is not trusted or interactive approval has not been granted.
Fix: trust the workspace, approve the server when Claude Code asks, then check claude mcp get name and /mcp.
The status says authentication required
Symptom: the endpoint is reachable but cannot be used.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Best Value
![M6 Cage Nuts, Screws and Washers [Size: M6 x 16mm 50 Pack] Rack Mount Screws Hardware for use with Network and Server Rack Accessories, Routers, Cabinets and Enclosures.](https://m.media-amazon.com/images/I/51yizSYkrhL._SL160_.jpg)
- Pro Grade – Here is our new Black M6 Rack Screws and Cage Nuts Set [25 x Server Rack Screws, 25 x Cage Rack Nuts, 25 x Washers] used for mounting server racks, enclosures, cabinets, and more.
- Strong & Durable – Our Rack Cage Nuts & Relay Rack Screws for server rack have a high-grade carbon steel construction to prevent stripping. The M6 Cage Nuts and Bolts have also been coated in zinc chromate plating for resistance from corrosion.
- Wide application – Our rack screws & nuts are universally compatible with all square hole racks & cabinets. This makes the rack cage nuts and screws suitable for mounting all server rack hardware, including rack server cabinets, server shelves, A/V device enclosures, and other server mounting procedures.
- Easy to install – Our server rack screws and clip nuts have a Phillip’s truss-head with self-guiding pilot points to allow you to install in no time. The rackmount screws and nuts thread are extra sharp, clean & accurate, offering a smooth & satisfying installation process.
- Essential Bundle – Our Cage nuts & screws m6 set includes all the essential parts for mounting your server equipment. Pack not only includes screws & cage nuts; we have also thrown in additional heavy-duty washers to reduce any marks or scratches when installed. We truly believe our server rack nuts and bolts set is the best in the marketplace and we stand by that. If our cage nut set starts driving you nuts, we’ll FULLY REFUND YOU. So, click “Add to Cart” now and buy with confidence.
Fix: add the provider’s required header, such as --header "Authorization: Bearer your-token", or configure credentials using the server’s documented environment-variable method. Never paste a live secret into a project file that will be shared.
The server is listed as failed
Run claude mcp get name for details, then test the launch command or URL outside Claude Code. For stdio, verify the executable, working directory, dependencies, and argument order. For remote services, verify the exact URL, transport, TLS access, and authentication. Correct the registration and check the status again.
Security and operational practices
- Connect only to servers you trust. A server that fetches external content can expose Claude to prompt-injection risk.
- Use the narrowest scope that fits the job. A local server avoids sharing; a project server is convenient for a team but affects everyone who approves it.
- Keep credentials in environment variables or request headers supported by the server, not in committed configuration.
- Give each server a descriptive name so failures and permissions are easy to identify.
- Prefer HTTP when a provider supports it; retain SSE only for services that have not moved to HTTP, and choose WebSocket when persistent bidirectional behavior is required.
- After upgrades, verify with
claude mcp listand a real tool call rather than assuming a previously working process still starts.
Performance, reliability, and cost considerations
Local stdio avoids hosting and network latency, but Claude Code must start the process on each machine that uses it and that machine must have its dependencies. Remote HTTP centralizes deployment and makes a service reachable by multiple approved projects, but it introduces network availability, authentication, and reconnect behavior to manage. SSE can keep an older integration working, while WebSocket is suited to long-lived two-way sessions.
MCP itself does not establish a universal price, uptime, or performance guarantee. Your cost and reliability come from the server implementation and its provider. Measure startup time, upstream API limits, authentication expiry, and failure recovery in the environment where Claude Code will run.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minutePC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Or skip the browser setup
If your MCP workflow needs website screenshots, ScreenshotNeo provides a website screenshot API and MCP server for developers. It removes cookie and consent banners, newsletter popups, and chat widgets before capture; bot checks, blank pages, timeouts, failed loads, and cache hits are not billed. Responses identify the page verdict and billing result with X-Page-Verdict and X-Billed headers. Its MCP server includes take_screenshot, get_page_info, and capture_pdf tools for Claude, Cursor, and other MCP clients.
One GET request returns PNG, JPEG, WebP, or PDF. See the ScreenshotNeo API documentation for the full parameter list.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpimport requests
r = requests.get("https://api.screenshotneo.com/v1/shot", params={"access_key": "YOUR_API_KEY", "url": "https://stripe.com"}, timeout=90)
open("shot.webp", "wb").write(r.content)const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://stripe.com' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);You can also set full-page capture with lazy images, CSS-element capture, dark mode, device and viewport settings, retina scale, PDF paper and page ranges, custom CSS or JavaScript, click and wait actions, selector hiding, request blocking, headers, cookies, user agent, authorization, timezone, geolocation, transparent backgrounds, resizing, chosen cache TTLs, signed image links, asynchronous webhooks, bulk capture of up to 100 URLs per call, and usage reporting. Every feature is included on every plan. The Free plan includes 1,000 shots per month without a card; paid plans start at $5 for 3,000 shots. Create a free ScreenshotNeo account.
Frequently Asked Questions
Can a local stdio server be used by teammates?
Not directly from your machine. Use project scope only when the team can run the same command and dependencies, or deploy the server remotely and register its endpoint.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →What should I check before converting a configuration from another MCP client?
Identify whether it contains a launch command or a URL, then confirm the URL’s transport and extract one server object from any larger mcpServers block.
Why does a server work from a shell but not in Claude Code?
Compare the registered working directory, executable path, arguments after --, transport type, and authentication headers. The Claude Code status commands usually reveal which of those differs.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
