MCP servers extend AI tools, but token costs and scope management are key
ByPulseAugur Editorial·[209 sources]·
The Model Context Protocol (MCP) is an open standard enabling AI models like Claude Code to interact with external tools and data. Developers are building various MCP servers to extend AI capabilities, ranging from file system access and GitHub integration to database querying and browser control. While MCP offers significant advantages by standardizing AI integrations, concerns are emerging about the token costs associated with registering numerous tools, especially in long-running agentic loops. Best practices include scoping MCP configurations to specific projects, preferring servers with fewer tools, and keeping tool descriptions concise to manage these costs.
AI
IMPACTMCP servers are becoming crucial infrastructure for AI agents, but developers must carefully manage token costs and server scope to ensure efficient operation.
RANK_REASON
The cluster discusses the development and use of MCP servers, which are tools that extend AI capabilities, rather than a core AI model release or research.
<h2> TL;DR </h2> <p>I spent a weekend building my first MCP server so Claude Code could query our internal service catalog instead of me copy-pasting JSON into the chat. The code took two hours. Getting the agent to actually <em>use it well</em> took the other fourteen — and almo…
HN — claude cli stories
TIER_1English(EN)·benbalter·
<p>Everyone talks about MCP servers as a way to extend Claude Code. Fewer people talk about what they cost.</p> <p>Every MCP tool you register injects a tool-definition block into your context window on every single turn. That's not a one-time cost — it compounds across your enti…
dev.to — Claude Code tag
TIER_1English(EN)·wartzar-bee·
<p>Everyone talks about MCP servers as a way to extend Claude Code. Fewer people talk about what they cost.</p> <p>Every MCP tool you register injects a tool-definition block into your context window on every single turn. That's not a one-time cost — it compounds across your enti…
dev.to — Claude Code tag
TIER_1English(EN)·Anup Karanjkar·
<p>The <strong>Model Context Protocol (MCP)</strong> is what makes Claude Code extensible. It's the standard that lets you give Claude access to your databases, APIs, file systems, and any custom tool you can imagine.</p> <p>Building an MCP server is surprisingly straightforward.…
dev.to — Claude Code tag
TIER_1English(EN)·Anup Karanjkar·
<p>If Claude Code is the brain, <strong>MCP servers are the nervous system</strong>. They connect the AI to databases, APIs, browsers, file systems, and virtually anything with an interface. And understanding them is the key to unlocking Claude Code's full potential.</p> <p>MCP —…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<p>Model Context Protocol (MCP) makes it possible for AI assistants to interact with external tools and data sources in a standardized way.</p> <p>In this tutorial, we'll build a simple <strong>MCP server using FastMCP</strong>, expose it over HTTPS with LocalTunnel, and connect …
<p><strong>TL;DR</strong> — A server's README can say anything. Its <code>tools/list</code> response either backs that up or it doesn't.</p> <p>I built <strong><code>mcp-worse</code></strong> — a second binary, sharing two of <code>mcp-better</code>'s tool names, that deliberatel…
<p>This tutorial walks through building an <strong>MCP server in Rust</strong> with<br /> <a href="https://crates.io/crates/rmcp" rel="noopener noreferrer"><code>rmcp</code></a>, the official Model Context Protocol Rust SDK.</p> <p>The example is a real one: a devops agent that m…
<p>This tutorial walks through building an <strong>MCP server in Rust</strong> with<br /> <a href="https://crates.io/crates/rmcp" rel="noopener noreferrer"><code>rmcp</code></a>, the official Model Context Protocol Rust SDK.</p> <p>The example is a real one: a devops agent that m…
<p>If you ship an MCP server for a product that already has a REST API, the tempting move is to wire the tools straight into your service layer. Skip the network hop, call the function, return the object. I did the opposite, and after a full audit of the surface I am glad I did. …
dev.to — MCP tag
TIER_1Polski(PL)·Andrzej Klusiewicz·
<p>MCP zamienia Claude Code w centrum dowodzenia nad Twoimi narzędziami. Wybraliśmy 20 serwerów MCP, które realnie zmieniają codzienną pracę: po co każdy i jak go podłączyć.</p> <p>Kurs <a href="https://jsystems.pl/blog/show_post/claude_code_kompletny_przewodnik_dla_programistow"…
<p>Five MCP clients. One server command. Three different config schemas.</p> <p>That last part is the bit worth knowing before you wire a document API into an agent, because when you get it wrong nothing errors loudly. The server simply does not appear.</p> <p>Everything below co…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
Medium — MCP tag
TIER_1English(EN)·Alex Whiteingale·
<h4><em>Add MCP servers to Claude Code with claude mcp add, choose scope, keep the stack small, and fix connected-but-no-tools failures.</em></h4><blockquote><em>Claude can draft the perfect PR description and still can’t open your repo, check the live docs, or click through the …
<p><a href="https://dev.to/ferztyle/build-an-mcp-server-in-go-part-1-designing-a-diagnostic-grade-kubernetes-client-49a2"><em>Part 1</em></a> <em>designs the</em> <code>KubeClient</code> <em>interface this post builds on. If you haven't read it, the short version: a read-only, do…
<p><em>This post designs the Kubernetes client.</em> <em>The next post</em> <em>wraps it as an MCP server and wires it to an agent.</em></p> <h2> Asking instead of running </h2> <p>There's a familiar rhythm to debugging a bad deploy: <code>kubectl get pods</code>, spot the <code>…
<p>Looker hosts its own MCP server now. This walks through connecting Claude Code to it, pairing it with the Looker CLI, and being clear-eyed about where the tool set stops.</p> <h4> The binary you no longer need </h4> <p>Until recently, connecting an agent to Looker meant runnin…
Medium — MCP tag
TIER_1English(EN)·ATNO For DevOps Engineers·
<p>"MCP servers sound complicated" — if that's your reaction, FastMCP might change your mind. It handles almost all the plumbing for you. Add one decorator to a plain Python function, and you've got a custom tool Claude Code can call.</p> <p>In this post, we'll build a small fort…
Medium — MCP tag
TIER_1English(EN)·Bruce De Jager·
<p>Model Context Protocol turns Claude Code from a code generator into something that can read your repo,<br /> query a database, drive a browser and file a PR. The catch is that most "MCP setup" posts stop at<br /> <code>filesystem</code> and never mention the traps. Here's a co…
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
dev.to — MCP tag
TIER_1English(EN)·NextBlock™ CMS·
<p>If you’re building developer tools in 2026, forcing users to type prompts exclusively inside a web UI feels increasingly outdated. IDE extensions, terminal agents like Claude Code, and desktop AI clients are where developers spend their time.</p> <p>We just shipped an architec…
<h1>MCP Protocol Deep-Dive: Why "Send All Tools" is the Anti-Pattern It Solves</h1> <p>Explore the Model Context Protocol's elegant solution to tool discovery. Learn how MCP's structured, capability-first approach eliminates the wasteful practice of dumping every tool definition …
<p>I still remember the day our LangGraph agent deployment came crashing down due to a simple yet devastating issue - our MCP server couldn't handle the sheer volume of tool registrations and endpoint requests. We had built a robust agentic AI system, but our server architecture …
<p>MCP servers usually run on your localhost — which means hosted<br /> Claude, Cursor on another machine, or a teammate can't reach them.<br /> The fix is a tunnel, but the details matter: which URL survives<br /> restarts, how the config files actually look, and how to avoid<br…
dev.to — MCP tag
TIER_1English(EN)·Steve Gonzalez·
<p>MCP (Model Context Protocol) is how AI agents connect to tools. Claude Desktop uses it, Cursor uses it, and thousands of developers are building MCP servers to give AI access to their APIs, databases, and infrastructure.</p> <p>There's one problem: <strong>MCP has no security …
<p>When building Model Context Protocol (MCP) servers or AI agents that consume them, traditional API testing tools fall short. An MCP server isn't just a basic REST endpoint—it's a dynamic interface exposed to non-deterministic LLMs through stdio, HTTP, or SSE transports.</p> <p…
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
Medium — MCP tag
TIER_1English(EN)·Suresh Kumar Mani·
<p>I run both Asterisk and FreeSWITCH. Have done for years. And the thing that still slows me down isn't anything hard, it's the constant switching between two vocabularies that do the same job.</p> <p>Want to know if an extension is registered?</p> <p>On Asterisk that's <code>pj…
<h1> MyZubster MCP Server: What Changes in the Real World After This Implementation? </h1> <p>AI is changing quickly.</p> <p>At first, AI systems mainly generated text.</p> <p>Then they started using APIs.</p> <p>Now we are moving toward something more powerful:</p> <p><strong>AI…
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
dev.to — MCP tag
TIER_1English(EN)·Michael Odhiambo·
<p>I needed a way to interact with my app through AI clients without locking myself into a single provider. That's how this whole thing started.</p> <p>I'd been hearing about the Model Context Protocol (MCP) for a while but never actually dived in. When I finally did, I had a sma…
<p><em>This article is part of my MCP series. In the previous article, I covered authentication, tool permissions, secrets management, input validation, and tenant isolation for production MCP servers.</em></p> <blockquote> <p>Read the previous article: <a href="https://dev.toPAS…
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<p>3 agent frameworks. 4 data sources. 12 brittle connectors.</p> <p>Then someone renames a column and three agents break at once. MCP fixes the wiring — but the wiring was the easy part.</p> <h2> What an MCP semantic layer server actually exposes </h2> <p>The design decision is …
dev.to — MCP tag
TIER_1English(EN)·Seo Diginatives·
<h2> Securing MCP Servers: A Developer's Checklist for 2026 </h2> <p>If you're building or integrating with a Model Context Protocol (MCP) server, you already know it's a great way to give an LLM structured access to tools, files, and APIs. What's less talked about: every tool yo…
<p>I still remember the day our support bot, powered by LangGraph and MCP, started behaving erratically. It would suddenly switch topics or reveal sensitive information to the wrong users. After digging through the logs, we discovered the issue: our MCP server was not properly se…
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
dev.to — MCP tag
TIER_1English(EN)·Sushyam Nagallapati·
<p><em>This article is part of my MCP series. In the previous article, I covered how to deploy an MCP-based AI agent using Docker, Kubernetes, CI/CD, and observability.</em></p> <blockquote> <p>Read the previous article: <a href="https://dev.to/sushyam_nagallapati/productionizing…
<p>Originally published in Spanish on El Rack, a Spanish tech review site I write for. Browser translation handles the rest of the site well if you want to dig deeper into the sysadmin/homelab content.</p> <p>Claude Code is my main tool every day for managing a handful of self-ho…
<p>Fewer than 5% of MCP servers make money. I put a real payment gate in front of one and wrote down what actually broke.</p> <h2> The problem, with numbers </h2> <p>There are 10,000+ Model Context Protocol (MCP) servers out there right now, with 97 million+ combined downloads. M…
<h2> What is MCP? </h2> <p>The <strong>Model Context Protocol (MCP)</strong> is Anthropic's open specification for connecting AI assistants to external tools and data sources. Think of it as "USB for AI" — a standardized way for AI models to interact with APIs, databases, filesys…
<h1> Building an MCP Server Directory: A Technical Deep-Dive </h1> <p>The <a href="https://modelcontextprotocol.io" rel="noopener noreferrer">Model Context Protocol (MCP)</a> is rapidly becoming the standard for connecting AI agents to external tools. But as the ecosystem grows, …
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
Medium — Claude tag
TIER_1English(EN)·David Baxter·
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<h1> MCP Workbench Beta Is Live: The Postman for MCP Servers </h1> <p>Today we're opening the MCP Workbench beta — a browser-based testing platform for Model Context Protocol servers. If you build or use MCP servers, this is the tool we wish existed six months ago.</p> <h2> What …
<h1> Browser-Based MCP Server Testing: No Terminal, No Config, No Pain </h1> <p>If you've built or debugged an MCP server, you know the typical workflow: open a terminal, edit a config file, restart your AI client, cross your fingers, and squint at cryptic stdio output when somet…
<h1> Building the Hermes Verification Engine: How We Validate MCP Servers at Scale </h1> <p>At MCP Workbench, we run hundreds of MCP server validation tests every day. Each one checks protocol compliance, schema integrity, error handling, and cross-client compatibility. Doing thi…
<h1> Why MCP Servers Need Verification Before Production </h1> <p>The Model Context Protocol (MCP) is transforming how AI agents connect to external tools. With 1000+ community servers now available, developers can give Claude, Cursor, and other AI clients access to filesystems, …
<h1> I Built a Verification Engine for MCP Servers </h1> <h2> The Problem </h2> <p>The MCP (Model Context Protocol) ecosystem has 1000+ servers on GitHub. But there is a massive trust gap: how do you know which ones actually work?</p> <h2> What I Built </h2> <p><strong>MCP Workbe…
<p>Unit tests can tell you that a function returns the right object. They cannot, by themselves, tell you that a spawned MCP server completes its initialization handshake, advertises the tools a client expects, keeps protocol frames on stdout, or turns a real tool call into a val…
<p>Thirty-two MCP servers for Kenya's coordination domains.</p> <p>Water. Health. Agriculture. Insurance. Land. Education. Transport. Tax. Labor. Market prices.</p> <p>Each one works. None talks to any other.</p> <p>This is what 32 isolated tools looks like in practice: a CHW in …
<h1> We Built a CCS-Native MCP Server </h1> <p>Today we launched correctover-mcp-server — an MCP server that embeds CCS 6-dimension runtime verification directly into the protocol layer.</p> <p><strong>Core idea:</strong> Every tool call is verified across 6 dimensions before exe…
<p>This is Part 2 of a 7-part series on AI-assisted network operations with MCP and Agent Skills. <a href="https://dev.to/uzi_golan_98cbec5e54e377e/why-your-network-devices-need-an-mcp-server-part-1-1cpi">Part 1</a> explained why your network devices need an MCP server. This arti…
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
<div class="medium-feed-item"><p class="medium-feed-snippet">MCP has won the standardization war but lost the “just build servers and get rich” fantasy. As of mid-2026 the protocol is genuine…</p><p class="medium-feed-link"><a href="https://chierhu.medium.com…
<h2> The Problem </h2> <p>Model Context Protocol (MCP) lets an AI agent call structured tools instead of guessing from raw text dumped into a context window. Fine in theory — but most MCP integrations just expose "read file" and "search," which barely improves on copy-pasting cod…
<div class="medium-feed-item"><p class="medium-feed-snippet">You start with one MCP server. Then two. Then five. Before long, you’re managing a dozen MCP servers across multiple AI agent clients —…</p><p class="medium-feed-link"><a href="https://medium.com/@j…
<div class="medium-feed-item"><p class="medium-feed-snippet">You start with one MCP server. Then two. Then five. Before long, you’re managing a dozen MCP servers across multiple AI agent clients —…</p><p class="medium-feed-link"><a href="https://medium.com/@j…
<p>This is Part 1 of a 7-part series on AI-assisted network operations with MCP and Agent Skills.</p> <p><em>From private chatbots to shared, reusable infrastructure: MCP servers, Agent Skills, knowledge catalogs, and safety models that turn AI into a real network operations team…
Medium — MCP tag
TIER_1English(EN)·Bhavy Shekhaliya·
<p>An MCP server can give an AI assistant access to a filesystem, browser, database, API, or internal service. That makes installation less like adding a bookmark and more like approving a new integration.</p> <p>Before I install one, I run a short health check. It does not repla…
<p>The fastest way to choose an MCP server is not to start with the longest directory. Start with evidence that the project is still maintained, then check whether it fits your client and workflow.</p> <p>I use a short sequence: define the job, check lifecycle signals, inspect th…
<ul> <li>As more of my tooling starts talking to MCP servers instead of calling APIs directly, I kept running into the same gap: there's no lightweight way to know when an MCP server goes down, and no way to see what actually happened when something breaks mid-run. So I built two…
dev.to — MCP tag
TIER_1English(EN)·Sahajmeet Kaur·
<blockquote> <p><strong>TL;DR:</strong> A virtual MCP server combines tools from several real MCP servers into one curated server your app connects to. You pick only the safe tools, skip the destructive ones, and expose them as a single remote MCP server with no extra deployment.…
<h1> Build Your Own MCP Server in Python: A Hands-On 2026 Guide </h1> <p>You have a tool — an internal API, a database, a SaaS endpoint — that your AI assistant cannot reach. The tools are there. The model just has no way to call them.</p> <p>That is the exact gap Model Context P…
<h1> Your Enterprise Deployed MCP Servers — Has Anyone Audited Them? </h1> <p>The Model Context Protocol (MCP) is becoming the standard way AI agents interact with external tools and data sources. More enterprises are deploying MCP servers in production every week.</p> <p>But her…
<h1> Your Enterprise Deployed MCP Servers. Has Anyone Audited Them? </h1> <p><strong>38% of production MCP servers have no authentication. 43% are vulnerable to command execution. Your AI agents are calling tools that nobody has verified are safe.</strong></p> <h2> The State of M…
dev.to — MCP tag
TIER_1English(EN)·Manveer Chawla·
<p>Teams across the enterprise, from engineering to finance and HR, now run dozens of Model Context Protocol servers in development. But connecting those servers safely to real business systems is what's blocking production rollouts.</p> <p>The ecosystem went from architectural e…
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
<p>I have a rule for MCP now. If a server cannot name the job it finishes, it is entertainment.</p> <p>The ecosystem exploded. Every SaaS with a REST API grew a README that says "works with Claude and Cursor." Half of them dump entire schemas into the context window on connect. A…
dev.to — MCP tag
TIER_1English(EN)·Jay from PasteSheet·
<p>The first version of my MCP server worked and was still useless. Every tool returned correct data when I called it by hand in the Inspector, and then I pointed Claude at it and watched the model do the wrong thing about a third of the time. It would search for a value it alrea…
<p>Anthropic just shipped the biggest MCP update since launch (MCP 2026-07-28). Most write-ups read like a changelog: stateless core, extensions, auth hardening.</p> <p>But if you actually build things, the update has one real signal: <strong>your distribution channel just got up…
dev.to — MCP tag
TIER_1English(EN)·kirandeepjassal-crypto·
<blockquote> <p>A local MCP server is a <code>dotnet run</code>. A production one is a stateless HTTP service that also holds long-lived streams, gets hammered at 3,200 requests a second, deploys without dropping a call, and never leaks a connection string. That's an infrastructu…
<p>Building your first <a href="https://modelcontextprotocol.io" rel="noopener noreferrer">Model Context Protocol</a> server takes about twenty minutes. The official quickstart is genuinely good: <code>npm install</code>, register a tool, connect a stdio transport, and Claude or …
<p>This year I've built more MCP servers than I meant to, across three pretty different shapes:</p> <ul> <li> <strong><a href="https://github.com/freema/vellum" rel="noopener noreferrer">vellum</a></strong>: a self-hosted server over a folder of markdown, so my agent has a memory…
<p>The Model Context Protocol (MCP) has transformed how AI agents interact with local tools, filesystems, and databases. Originally built around a deterministic, single-process, desktop-bound CLI paradigm using local standard input/output streams (<code>stdio</code>), MCP thrives…
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
Medium — fine-tuning tag
TIER_1English(EN)·Muhammad Faizan Nadeem·
<blockquote> <p>We've built servers, clients, tools, auth, and governance across this series — all in C#, without ever slowing down to look at <em>how</em> the .NET tooling makes it pleasant. This part does. If your backend is already .NET, an MCP server turns out to be one of th…
dev.to — MCP tag
TIER_1English(EN)·Dilan Srilal (dilansri)·
<p>You wrote this once, on the day the tool was born:<br /> </p> <div class="highlight js-code-highlight"> <pre class="highlight json"><code><span class="p">{</span><span class="w"> </span><span class="nl">"name"</span><span class="p">:</span><span class="w"> </span><span class="…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
Medium — Claude tag
TIER_1English(EN)·Shiva Ganesh Raidu·
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
<h1> Building 60 MCP Servers Using the Five Elements Framework: A Build-in-Public Journey </h1> <p>Most people focus on adding more features to their AI agents. I discovered better evaluation loops matter more.</p> <p>Over the past several months, my team and I have been building…
<h1> MCP server security checklist before you publish </h1> <p>You've built an MCP server. You've tested it locally, written the README, and you're ready to submit it to the MCP registry or push it to npm. Before you do — here's a 7-point checklist worth running through.</p> <p>T…
<p><a class="article-body-image-wrapper" href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F1sbnn93urzu1m6pkriwx.png"><img alt="7 Best Tools to …
<p>The MCP ecosystem grew faster than the review rules for it. In the last few weeks I published three MCP servers of my own and each time I found myself running the same mental checklist before shipping: how many tokens am I burning per turn just by being registered, are my tool…
<p>Build an MCP server only if you need external AI agents — Claude, ChatGPT, Cursor, or a customer's internal agent stack — to call your product directly and take real actions on a user's behalf. If you just want your own product to have an AI feature, you don't need MCP at all;…
<p>Every week I watch someone spin up their first Model Context Protocol server, get <code>echo</code> working, and then hit a wall: <em>how does a real one actually look?</em> The tutorials stop at hello-world, and the jump from there to "a server I'd let Claude or Cursor drive …
Medium — Claude tag
TIER_1English(EN)·Shiva Ganesh Raidu·
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<h1> MCP Apps in 6 steps: ship a server-rendered UI on the 2026-07-28 spec </h1> <p><strong>Summary.</strong> MCP Apps went live on 26 January 2026 as the first official Model Context Protocol extension, and it lets a tool return an interactive HTML interface instead of a wall of…
<p>The <strong>Model Context Protocol</strong> (MCP) is how Claude Code talks to external systems. GitHub, Slack, Linear, your database, your monitoring stack, and your browser can all become tool surfaces that Claude Code can call. This guide walks through how to set up MCP serv…
dev.to — MCP tag
TIER_1Nederlands(NL)·Stuart McLeod·
<h1> enrichment MCP server </h1> <p>Here is a working config. Drop it into your MCP client and your agent can call verified B2B enrichment immediately.<br /> </p> <div class="highlight js-code-highlight"> <pre class="highlight json"><code><span class="p">{</span><span class="w"> …
<p>You wouldn't install a npm package without checking its dependencies. You shouldn't install an MCP server without checking its security. Here's the checklist we use at MarketNow — 9 layers, from basic to advanced.</p> <h2> 1. Does it have a GitHub repo? </h2> <p>If the install…
<p>I built an MCP server for <a href="https://nuzur.com/" rel="noopener noreferrer">nuzur</a>, a project I've been working on. It fits naturally into my workflow and helps me automate flows from schema design to data changes. In this post I want to share what I learned during the…
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
Medium — MCP tag
TIER_1English(EN)·Santanu Mandal·
<div class="medium-feed-item"><p class="medium-feed-snippet">Wrapping git log in an MCP server takes about twenty lines of Python: import one class, decorate a function, run it over stdio. What the…</p><p class="medium-feed-link"><a href="https://medium.com/@info_69357/bui…
Towards AI
TIER_1English(EN)·Sarath Krishna Prasad·
<figure><img alt="" src="https://cdn-images-1.medium.com/max/1024/1*GORMuSxhC0jHHR9z1qdLZg.png" /><figcaption>MCP vs CLI</figcaption></figure><h4><em>Why the hardest part of building an MCP server is everything that happens outside of it — and when a boring command-line tool is t…
Medium — Claude tag
TIER_1English(EN)·Shalki Wenushika·
<h1> Building an SEO MCP server for Claude Code and Codex </h1> <p><a class="article-body-image-wrapper" href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2…
dev.to — MCP tag
TIER_1English(EN)·Budiono Santoso·
<p>Hello everyone. I want to continue writing about fraud detection MCP server. In this blog tutorial, I want to create MCP server on Amazon Elastic Kubernetes Service (EKS) using ECR fraud detection image that already created before. <a href="https://aws.amazon.com/eks" rel="noo…
dev.to — MCP tag
TIER_1English(EN)·Mohab Abdelkarim·
<p><strong>TL;DR:</strong> One MCP server, <code>https://mcp-server.walterwrites.ai/mcp</code>, now works across three completely different AI clients: Claude (stable, native connector support), ChatGPT (beta, via Developer Mode), and Codex (native CLI/IDE support). Same tools, s…
<p>Welcome to this week's Developer Digest, where we've handpicked 10 new MCP servers and Claude tools for you to explore. These selections were automatically chosen from hundreds of new repositories in the Claude ecosystem this week, providing a diverse range of options for deve…
<h1> I Built a Live Registry of 750+ MCP Servers — Here's What I Found </h1> <p><em>[Draft for dev.to / HN — Chris to review before posting. Add author bio at bottom.]</em></p> <p>Model Context Protocol (MCP) has exploded in the past six months. Every week, dozens of new MCP serv…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<p>The <strong>Model Context Protocol</strong>, commonly known as <strong>MCP</strong>, gives AI applications a standardized way to connect with external tools, APIs, databases, files, and other data sources.</p> <p>A typical MCP interaction looks simple:<br /> </p> <div class="h…
<p>If you use Claude Desktop, Cursor, Cline, or Continue, you've probably installed MCP servers from a "curated list" or directory. Here's the uncomfortable truth: most of those directories don't actually audit the servers they list. They're curated lists, not security audits.</p…
dev.to — MCP tag
TIER_1English(EN)·kirandeepjassal-crypto·
<blockquote> <p>Most MCP tools return in milliseconds, and life is easy. Then someone adds a tool that generates a PDF, runs a multi-step analysis, or queries a billion-row table — and the whole agent freezes on a spinner until the connection times out. The length of the <em>work…
<p>Your AI can already write your app. <strong>It just can't run the backend behind it, until now.</strong></p> <p>Let's start with the idea that made all of this click, because everything else follows from it. <strong>MCP, the Model Context Protocol, is a way to let an AI agent …
Medium — MCP tag
TIER_1English(EN)·Amalraj Joseph·
<p>I have worked in cloud and platform engineering for 16 years. When I first heard "agentic AI" and "MCP", it sounded complex. It is not. This post explains everything in simple words. You do not need to read anything else to understand MCP. There is a glossary at the bottom if …
<p>Model Context Protocol (MCP) has exploded in the past six months. Every week, dozens of new MCP servers appear on GitHub — tools that let Claude and other AI assistants connect to databases, APIs, file systems, and basically anything else you can imagine.</p> <p>The problem? T…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
dev.to — MCP tag
TIER_1English(EN)·Tanguy Compagnon de La Servette·
<p><strong>TL;DR</strong> — Our first MCP was basically our API, exposed as-is. Claude wouldn't use it. We had a dedicated tool to compare two periods and it never called it once: it just called <code>query_cost</code> twice and did the subtraction itself. The tools made sense if…
<h2> Three Gaps Between Local and Production </h2> <p>A local MCP Server takes one command: <code>python server.py</code>. Enterprise production adds three required problems:</p> <ol> <li> <strong>Authentication</strong>: stdio mode has no auth — any process can connect. Producti…
<h2> What Happened </h2> <p>Cybersecurity researchers disclosed a critical design vulnerability in Anthropic's <strong>Model Context Protocol (MCP)</strong> that enables remote code execution. The flaw affects more than 7,000 publicly accessible MCP servers and a software ecosyst…
<p>Developers are pushing back against cloud API billing and the privacy risks of sending proprietary codebases to third-party endpoints. A Hacker News thread from this year put it plainly: the problem isn't the price per token, it's the unpredictability of usage-based billing wh…
<h1> 11 MCP server CVEs in 2026: the hardening configs that stop them </h1> <p><strong>Summary.</strong> On 20 April 2026, OX Security published research describing 11 CVEs across Model Context Protocol implementations, affecting more than 7,000 publicly accessible servers and pa…
Medium — MCP tag
TIER_1English(EN)·Hunter Wiginton·
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
<p><em>Originally published on <a href="https://www.adspirer.com/blog/best-ad-mcp-servers-2026" rel="noopener noreferrer">the Adspirer blog</a>. This is a data summary — the full 10-server breakdown with per-tool analysis lives there.</em></p> <p>Ask ChatGPT or Claude <em>"what's…
<p>Last month I shipped an MCP server for Drumbeats. The code for the first working version took one day. The three weeks around that day are where everything useful happened — and that's what this post is about.</p> <p>This is not a feature announcement. The <a href="https://git…
dev.to — MCP tag
TIER_1English(EN)·Omer Faruk Kolip·
<p>I ship a free X (Twitter) creator toolkit at <a href="https://xtapdown.com" rel="noopener noreferrer">xtapdown.com</a> — 17 web tools for downloading tweets, generating hashtags, calculating engagement, splitting threads, that sort of thing. A few weeks ago I wrapped 14 of the…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<p>Not a hype list. These are the three MCP servers I have running right now in Claude Desktop.</p> <h2> 1. Filesystem </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code>mcp-hub <span class="nb">install</span> @modelcontextprotocol/server-filesyste…
<h2> The Gap Between Hello World and a Useful Server </h2> <p>The Article 02 demo server runs, but only has <code>echo</code> and <code>add</code> — toy tools. A production-ready Server needs five additional engineering problems solved:</p> <ol> <li>How multiple tools share data …
Medium — Claude tag
TIER_1English(EN)·Dewmin Deniyegedara·
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<h1> Building Production-Ready MCP Servers in Python: A Complete Guide </h1> <p>The Model Context Protocol (MCP) is rapidly becoming the standard for connecting AI agents to external tools and data sources. If you're building AI applications in 2026, understanding MCP isn't optio…
<p>Installing an MCP server is running a stranger's code with your agent's permissions. Your shell, your environment variables, your filesystem — and increasingly your agent's own config and memory.</p> <p>Discovery is the easy part; there are tens of thousands of servers to pick…
<h1> Building Your First MCP Server with Solon: A 5-Minute Hello World </h1> <p>If you've been following the AI tooling space, you've probably heard about MCP (Model Context Protocol) — the open standard that lets AI models interact with external tools and data sources. It's been…
<p>MCP (Model Context Protocol) is becoming the standard way for AI applications to call external tools. Here's how to build and deploy an MCP server for SERP search.</p> <p><strong>What Is MCP?</strong><br /> MCP is a protocol that lets AI models (Claude, ChatGPT, etc.) discover…
<blockquote> <p>Originally published at <a href="https://heycc.cn/en/posts/set-up-mcp-server-claude-code/" rel="noopener noreferrer">heycc.cn</a>. This is a mirrored copy — the canonical version is kept up to date at the source.</p> </blockquote> <h1> How to Set Up an MCP Server …
<p><strong>Problem</strong>: the current Jira MCP server that exists doesn't support Jira Service Management, meaning we couldn't use Claude to post internal notes on tickets<br /> <strong>Solution</strong>: Build my own MCP server that does support Jira Service Management</p> <p…
<p>Last month we launched GoldBean, a pay-per-call MCP server with 100+ AI tools. The most common question I get: <em>'How did you actually build the payment layer?'</em></p> <p>Here's a technical deep dive into how we implemented x402 micropayments on top of an MCP server.</p> <…
Medium — Claude tag
TIER_1English(EN)·Diptendu Das·
<h2> The problem </h2> <p>Most MCP (Model Context Protocol) servers only support <strong>stdio transport</strong> — you run them as a subprocess:<br /> </p> <div class="highlight js-code-highlight"> <pre class="highlight json"><code><span class="p">{</span><span class="w"> </span…
dev.to — MCP tag
TIER_1English(EN)·kirandeepjassal-crypto·
<p>Here's the thing nobody tells you when they demo MCP: the model never actually calls a tool. It <em>asks</em> for one. The MCP client is the runtime that turns those requests into real calls against real servers and hands the results back — and building that loop well is what …
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<p>I kept running into the same problem while building with agents:</p> <blockquote> <p>The page is public. A browser can read it. But my agent gets blocked, redirected, rate-limited, or handed a shell of HTML with no useful content.</p> </blockquote> <p>There was already a fun p…
<blockquote> <p><em>Originally published at <a href="https://claudeguide.io/mcp-server-fastapi-python?utm_source=devto&utm_medium=syndication&utm_campaign=mcp-server-fastapi-python" rel="noopener noreferrer">claudeguide.io/mcp-server-fastapi-python</a></em></p> </blockquo…
<p>If you've heard the term "MCP server" floating around AI Twitter, GitHub, or Discord and quietly googled it — you're not alone. As of mid-2026, even some frontier models don't fully recognize the term yet. Let's fix that.</p> <p>This is a plain-English explainer: what MCP is, …
dev.to — MCP tag
TIER_1English(EN)·kirandeepjassal-crypto·
<p>You can stand up an MCP server that returns data in an afternoon. Standing up one that an agent hammers 85,000 times a day, across tenants, without leaking stack traces, OOM-ing on a big query, or dropping calls on deploy — that's a <strong>service, not a demo</strong>. This p…
<div class="medium-feed-item"><p class="medium-feed-snippet">Everything you need to build a production-ready Model Context Protocol server from scratch — project setup, writing tools, error handling…</p><p class="medium-feed-link"><a href="https://mdabrar-bvb.medium…
<p>Every developer using Claude Code or Cursor has hit this wall: the agent starts looping, responses get worse, and then — context overflow. You had no warning. You had no visibility. You just lost the whole session.</p> <p>I built <strong>ContextPulse</strong> to fix that.</p> …
Medium — MCP tag
TIER_1English(EN)·Subash Niroula·
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<h1> MCP in production: what I learned maintaining a server that works in Claude Code, Cursor, and Gemini </h1> <p>I maintain an MCP server that ended up running inside Claude Code, Cursor, and Gemini CLI. I did not plan for three clients. I built it for one, and then watched the…
Medium — MCP tag
TIER_1English(EN)·Yogendra Thakur·
<h1> How I'm Building MCP Servers for a Language Claude Doesn't Know Well </h1> <p>Swahili has roughly 200 million speakers. It's the primary working language of East Africa. It's a UN official language. And AI models make 4x more errors in Swahili than in English.</p> <p>That ra…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
<p>Day 6: <a href="https://www.skakarh.com/blog/build-mcp-server-in-python" rel="noopener noreferrer">Build Your First MCP Server in Python: A Production-Ready Guide for Beginners</a></p> <p>Build MCP Server in Python with this production-ready guide. Learn server architecture, t…
dev.to — MCP tag
TIER_1English(EN)·Kalpesh Parihar·
<p>MCP (Model Context Protocol) is an open standard that lets AI agents connect to external tools and data sources. Instead of building a custom integration for every AI client, you build one MCP server, and any compatible client (Claude, Cursor, Windsurf, custom agents) can plug…
<p>I built my first MCP server last week and it was way simpler than I expected. Here is exactly how, no fluff.</p> <h2> Prerequisites </h2> <ul> <li>Node.js 20+</li> <li>10 minutes</li> </ul> <h2> Step 1: Scaffold </h2> <div class="highlight js-code-highlight"> <pre class="highl…
HN — AI startup stories
TIER_1English(EN)·StratusBen·
<p>MCP (Model Context Protocol) servers hand an LLM real tools: read a file, run a command, fetch a URL. The problem: <strong>the arguments to those tools are driven by untrusted content</strong> — a web page, a document, another model. That is a textbook injection surface, and M…
dev.to — LLM tag
TIER_1English(EN)·Piotrek Karasinski·
<p>I run my blog, devmindset.dev, through a custom MCP server.**. Publishing posts, updating SEO metadata, assigning categories — all of it goes through a protocol that, a year ago, didn't exist in production form. So I'm not writing about MCP from the documentation's point of vi…
<table> <tr><td> <a href="https://www.reddit.com/r/ClaudeAI/comments/1v1tnmn/i_built_an_mcp_server_so_claude_code_can_delegate/"> <img alt="I built an MCP server so Claude Code can delegate work to GPT-5.6, DeepSeek, GLM and a local Qwen — then benchmarked all of them against Cla…
