Developer Tools MCP Servers

Microlink MCP — wraps Microlink API (free tier, no auth required)

Papers With Code MCP — browse ML research papers and their code repositories

Arduino MCP server for CLI setup, board detection, compile/upload, serial monitoring, and pin refs.

Pokemon MCP — wraps PokéAPI (free, no auth required)

Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)

passive-aggression MCP — wraps StupidAPIs (requires X-API-Key)

Patents MCP — wraps PatentsView API (https://api.patentsview.org/)

MCP PTY server providing AI agents with real interactive terminal access

Search ~8.5M products from 2,500+ Central European e-shops. Semantic, keyword, GTIN lookup.

Real-time news with bias scoring, live market data, and AI-powered options pricing

performance-review MCP — wraps StupidAPIs (requires X-API-Key)

Search thousands of MCP connectors from the AgentHotspot marketplace via your AI agent.

One MCP URL for all your apps. 600+ actions for AI.

AI music production assistant — audio profiling, AI mixing sessions, and service inquiries.

JSDoc, README, changelog generation for AI agents

phoenix-number MCP — wraps StupidAPIs (requires X-API-Key)

AI simulated crypto trading with real-time Upbit prices — 11 tools, 5 resources, 5 prompts

Kibana/Elasticsearch MCP — log search, aggregations, index discovery, dashboards.

Jaeger MCP — search traces, inspect spans, map service dependencies (read-only).

Dotenv parser, ports, system info for AI agents

Quotable MCP — wraps Quotable API (free, no auth)

FastMCP server exposing Joplin notes, notebooks, tags, and imports.

Date conversion between solar date (Gregorian calendar) to lunar date (Vietnamese calendar)

Pipeworx Catalog MCP — Exposes the full Pipeworx platform to Claude

AI agent Lightning payments: invoices, wallets, L402 access, API discovery, budgets, and commerce.

MCP server aggregating developer infrastructure deals, free tiers, and startup programs

MCP server for searching MCP protocol documentation

send-that-email MCP — wraps StupidAPIs (requires X-API-Key)

conspiracy-theory MCP — wraps StupidAPIs (requires X-API-Key)

Polish National registry of businesses and other legal entities

Run Claude, Codex, Gemini, Forge, and OpenCode CLIs through MCP with background jobs

Calculator, units, statistics for AI agents

The OpenROAD MCP server - interactive EDA sessions via Model Context Protocol

MCP server providing official Google and Anthropic prompting guides for meta-prompt generation.

take-the-meeting MCP — wraps StupidAPIs (requires X-API-Key)

162K English words, 74K lessons, knowledge graph, semantic reverse-dictionary search.

TradeRouter.ai MCP Server — Solana swap & limit order engine.

USAspending MCP — Federal spending data from USAspending.gov API

MCP tool that provides current Unix timestamp

Network diagnostics — ping, traceroute, DNS, port scanning, and connectivity testing.

Arpe.io MCP server for FastBCP, FastTransfer, LakeXpress, MigratorXpress

Cardano MCP — transactions, addresses, UTxOs, balances, ADAHandles & stake delegation

MCP server for color palette generation and conversion — HEX, RGB, HSL

AEM MCP server. Chat with your AEM instance for content, component, and asset operations.

Render STL and PNG from OpenSCAD code.

AI-powered insurance denial appeals. Win probabilities, payer intelligence & regulatory leverage.

FinishKit MCP: scan GitHub repos for security vulnerabilities, deployment blockers, and quality

1000+ scientific tools for AI scientists: life science, reserach, literature, and more.