Best MCP Servers for Claude Code: Replace Your Workflow, Keep Your Brain

Jenny Ouyang — Wed, 04 Mar 2026 17:43:27 +0000

Originally published on Build to Launch

Most people use Claude Code with zero MCPs. Here's what happens when you connect it to Perplexity, NotebookLM, Stripe, Gumroad, Notion, and everything else — research, payments, scheduling, publishing, all without breaking your chain of thought.

If there is one rabbit hole I have gone deep into over the past year, it's MCP.

I'm an AI builder and vibe coder whose attention is spread across everything: writing articles, creating products, managing a community, selling on Gumroad, researching, coding, publishing across platforms.

And every time I hit friction in any of those workflows, the answer kept being the same: there's an MCP server for that.

So when I say "best MCP servers," I don't mean the ones with the most GitHub stars. I mean the ones that survived daily use. I tried dozens. Dropped most. Kept a handful.

How Anthropic Wrote the USB Standard for AI — Then Gave It Away

What MCP is (2-minute version)

MCP = Model Context Protocol. It's how AI tools connect to everything else.
Claude Code without MCP is a phone that only makes calls. MCP servers are the apps.
You don't need to build these connections yourself. Over 1,000 already exist.
Without MCP: copy-paste between Claude and everything else.
With MCP: Claude reads your real data, takes actions, remembers across sessions.

The origin story

November 2024: Anthropic creates MCP and open-sources it.

March 2025: Sam Altman announces OpenAI will adopt MCP. Their direct competitor's protocol.

Then: Google follows with Gemini. Microsoft brings it to Copilot.

Then: Anthropic donates MCP to an independent foundation so no single company owns it.

By early 2026: 1,000+ community-built MCP servers.

The protocol is client-agnostic. A properly built server works in Claude Code, Claude Desktop, Cursor, Windsurf, and VS Code:

Two things most lists get wrong

The best MCPs match your friction, not the trending list.

I started with three questions: What am I copy-pasting? What tabs do I keep switching between? Where do I lose 10 minutes every time?

Memory is the most underrated category.

Memory changes the whole relationship. Claude goes from "tool I explain things to every session" to "collaborator who knows my projects, my voice, my decisions."

The Best MCP Servers — Ranked by Friction Killed

Every MCP does one of four things: connects to your data, researches for you, remembers across sessions, or takes action on your behalf.

🟢 Easy (one config line) · 🟡 Medium (API key, under an hour) · 🔴 Advanced (self-hosting)

#1. Connect: Direct Line to Your Stuff

Notion MCP · 🟢 · Daily · Free

claude mcp add --transport http notion https://mcp.notion.com/mcp

Slack MCP · 🟢 · Daily · Free

claude mcp add --transport http slack https://mcp.slack.com

Supabase MCP · 🟢 · Every session · Free

claude mcp add --transport http supabase "https://mcp.supabase.com/mcp?project_ref=YOUR_REF"

Google Drive MCP · 🔴 · Weekly (no official server yet, self-host community version)

Obsidian MCP · 🟡 · Daily · Free

#2. Research: Let Claude Look Things Up

Perplexity MCP · 🟡 · Every session

claude mcp add perplexity -e PERPLEXITY_SESSION_TOKEN="your_token" -- uvx --from "perplexity-webui-scraper[mcp]@latest" perplexity-webui-scraper-mcp

The MCP I reach for most. Web search, fact-checking, competitive analysis.

Verifying OpenAI's MCP adoption — 10 seconds, with citations

NotebookLM MCP · 🟡 · Weekly · Free

claude mcp add notebooklm -- uvx notebooklm-mcp

Substack Article MCP · 🟡 · Daily · Free (built by me)

claude mcp add substack-article -- npx -y substack-article-mcp

Whois MCP · 🟢 · As needed · Free

claude mcp add whois -- npx -y @bharathvaj/whois-mcp@latest

#3. Remember: Give Claude a Persistent Brain

AI Memory MCP · 🟡 · Every session

Custom build — persists memories with semantic search. Claude remembers my projects, decisions, preferences across sessions. The MCP I use the most.

I don't remember my server connection details — my AI memory does

#4. Act: Let Claude Ship, Sell, and Publish

Substack Notes MCP · 🟡 · Daily

claude mcp add -s user substack-notes -- npx -y substack-notes-mcp --token YOUR_TOKEN

Scheduling the note for this article — then going to sleep

Gumroad MCP · 🟡 · Weekly

claude mcp add gumroad -e GUMROAD_ACCESS_TOKEN="your_token" -- npx -y gumroad-mcp-server

Checking my store for products and offer codes

Stripe MCP · 🟢 · Weekly

claude mcp add --transport http stripe https://mcp.stripe.com

Checking Stripe for pending payment issues

Crosspost MCP · 🟡 · Weekly

claude mcp add crosspost -e CROSSPOST_API_KEY="your_key" -e CROSSPOST_API_URL="https://postingly.io" -- npx -y crosspost-mcp

n8n MCP · 🔴 · As needed

claude mcp add n8n -e N8N_BASE_URL="http://localhost:5678" -e N8N_API_KEY="your_key" -- npx -y @nicobailon/n8n-mcp-server

What Real Work With MCP Looks Like

As a Writer

Every week I collaborate with a guest writer. Before MCPs: log into multiple platforms, copy-paste, manually generate questions. Now it's one session:

Fetching guest writer details and shared draft via Supabase MCP

Try this prompt: "Read my last 5 articles and tell me which topics I should've written."

As a Publisher

Perplexity fact-checks mid-sentence. NotebookLM does deep research. Gumroad MCP checks what I've already published.

Try this prompt: "Fact-check this claim: [paste sentence]. Give me the source."

As a Builder

Supabase handles the database. Stripe handles payments. End-to-end debugging without opening three dashboards.

Checking app resource allocation on Vercel — without leaving Claude Code

Try this prompt: "List all my Gumroad products without an active offer code."

As a Planner

AI Memory is the connective tissue. "What did we settle on for the MCP article angle?" — Claude pulls it from three conversations ago.

Try this prompt: "Remember that I'm working on [project] and my next milestone is [goal]."

When the MCP You Need Doesn't Exist

The ecosystem isn't just something you consume — it's something you shape. 1,000+ servers today, doubling every few months.

I've built several (all free and open source):

Substack Newsletter MCP — explore creators
Substack Notes MCP — notes performance analytics
Substack Article MCP — fetch any article
AI Memory MCP — persistent memory across sessions
Crosspost MCP — distribute to X, Bluesky, LinkedIn, Threads

Start Here: One Server, One Prompt, Five Minutes

Write content → Substack Article MCP → "Suggest 3 social posts from my latest article."
Live in Notion → Notion MCP → "Pull my content calendar, what's overdue?"
Sell on Gumroad → Gumroad MCP → "Products without an active offer code?"
Build with Supabase → Supabase MCP → "Show schema, flag what needs an index."
Research constantly → Perplexity MCP → "Research [topic] with citations."

Once two MCPs are active together, they don't just add up. They multiply.

FAQ

Do I need Claude Code specifically? No. MCPs work with Claude Desktop, Cursor, Windsurf, VS Code. Same servers, different config path.

Are MCPs safe? Most are read-only. Write-capable ones ask for confirmation.

Do I need to pay? Most MCP servers are free/open source. They connect to services with their own pricing.

How many is too many? I run 15 without issues. Start with 1-2.

What tool do you wish Claude could talk to? Drop it in the comments — there's probably an MCP for it, and if not, maybe we could build one.

— Jenny | buildtolaunch.ai

DEV Community: Jenny Ouyang