MCP Server Directory

Envloped com.envloped/mcp

Send transactional email, verify domains, build contact segments, and draft marketing campaigns.

GS1 element strings, DataMatrix, eight keys, ITF-14 print specs and price-embedded in-store codes.

Base64 encode, input discarded io.github.sadri-dridi/base64-ok

Base64 encode, input discarded

Pin visual feedback on any live web page and send it to Claude Code, Cursor or your AI agent.

x402 HTTP 402 + MCP paywall: charge USDC per agent call. Self-host via npx or Docker.

spreadsheet-builder io.github.theluckystrike/spreadsheet-builder

Open, inspect, filter, edit and convert xlsx and csv files from your AI chat. Processing is local.

Synaptic Code Intelligence io.github.ColinVaughn/synaptic

Code intelligence for repository graphs, change impact, test selection, and engineering memory.

TestGraph io.github.BBCBasic/testgraph

Shared semantic graph for AI reviews, classification and structured memory across AI assistants.

Finds retired API versions and removed sfdx force:* commands in your DX repo before a deploy or a CI

Code review against your team standards, before the pull request: generator finds, judge confirms

Craftery Developer Tools dev.craftery/tools

Developer utilities: color conversion, WCAG contrast, timestamps, UUIDs, and hashing.

mcp ai.skillsinput/mcp

AI-powered career tools: job search, skills intelligence, career roadmaps, and resume building.

Cross-repository semantic code intelligence for AI coding agents, from a local code graph.

Delvorn io.github.MrAnderson323/delvorn

GET https://delvorn.site/api/x402/test-asset $0.05 Base. First independent=Certified+$0.05 back.

Microsoft Windows Security Updates (MSRC CVRF) — buy per-query in-session (msrcwatch) com.a2awire/data-windows-security-update-microsoft-cvrf

MSRC Windows updates: CVE rollups, Patch Tuesday. Register in-session — free testnet funds.

Code graph MCP: 81 languages, 91 frameworks, 72.7% fewer PR-review tokens, comprehension at parity

Attestwire com.attestwire/en16931

EN 16931: validate invoice data, UBL/CII or PDF; emit XRechnung/Peppol XML, never a PDF.

Local quantum error correction tools; decoder output verified against H c = s (mod 2).

HVAC Builder app.hvacbuilder/hvac-builder

Design, solve and simulate HVAC systems from real components, weather years and buildings.

Word tools for AI agents: read/write, decompile to F#/C#/XML/JSON, or build from XML/JSON.

Query and explore 100+ databases through your DBCode connections.

Scans LLM/agent code for Unbounded Consumption / denial-of-wallet risks (OWASP LLM Top 10 2026 #6)

Scans Cursor/Claude/Windsurf/VS Code MCP configs for unpinned versions, secrets, typosquats

GlockApps — Inbox Placement Testing com.glockapps/mcp

Inbox placement tests across Gmail, Outlook, Yahoo and 30+ providers.