Best Developer Tool AI Skills & MCP Servers

Slack MCP without OAuth. 21 tools (16 read/write Slack + 2 workflow profile primitives + 3 hosted-brain upgrade stubs). Free OSS or hosted (free tier no card; $9/mo Pro = unlimited; morning DM rolling out Q2 2026).

BuyAPI CLI and MCP server — unbiased vendor intelligence for AI coding agents

A local stdio MCP server that gives coding agents safe deterministic access to common local developer operations.

GitLab tools plugin for OpenCode - provides GitLab API access for merge requests, issues, pipelines, and more

Developer logbook MCP server. Notes, TODOs, reminders, code TODOs over an Obsidian vault. 5 consolidated MCP tools + native CLI. Auto-wikilinks, layered config, Orama search. Works with Claude, Cursor, Windsurf, Copilot, Gemini, Codex.

Organize all your Claude Code memories, skills, MCP servers, commands, agents, rules, and hooks — see what loads globally vs per-project, then move items between scopes

Scaffold for legible, reviewable AI-assisted development

The Most Comprehensive ServiceNow AI Toolkit — 400+ MCP tools + 26 AI capabilities (scan, review, build, ops, docs) + direct BYOK mode. Integrates with Claude, ChatGPT, Gemini, Cursor, GitHub Copilot and any LLM.

Model Context Protocol (MCP) server for Cerebras Code API integration with any MCP-compatible client. Run 'cerebras-mcp --config' for setup or 'cerebras-mcp --remove' for cleanup.

MCP Server for Claude Code Session Insight — structured data extraction, git log collection, and LLM synthesis guidance

MCP stdio + webhook server for point-grab

Unified npm bootstrap for the Yaver agent, SDK injection, and local-first developer runtime

Cross-Code Organizer (CCO, formerly Claude Code Organizer) — manage AI coding tool configs across Claude Code, Codex CLI, and more. Memories, skills, MCP servers, commands, agents, rules, and hooks across global and project scopes

MCP server exposing knowledge search tools for AI coding assistants

29 developer utilities as an MCP server — JSON repair, SQL format, hash, encode/decode, UUID, regex, CSV, subnet calc, diagram generation, git diff parsing, DB schema parsing, JSON schema validation, and more. No API keys. Runs locally.

The most comprehensive ServiceNow MCP server — 400+ tools across all modules. Integrates with Claude, ChatGPT, Gemini, Cursor, GitHub Copilot and any LLM.

MCP server with 45 developer utilities (16 free + 29 pro). Free: UUID, hash, HMAC, base64, timestamps, JWT decode, random strings, URL encode/decode, JSON format, YAML/JSON convert, regex test, cron explain, color convert, HTTP status, slugify, HTML escap

Zero-config MCP server for developers — encode/decode, hash, UUID, JWT, DNS, IP info, URL tracing, npm lookup and more.

MCP server tools and transports for baipiao.

Zero-config codebase context for AI agents. One command generates a ~250-token navigation map and auto-configures Claude Code, Cursor, and Aider.

Beautiful visual workspace manager for Claude Code. Access 136+ professional templates, automate workflows with hooks, and manage your AI development environment through an elegant web interface.

A developer-focused MCP server providing 17 tools for code analysis, JSON repair, encoding fix, import organization, format conversion, diff, and regex testing

Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex

A local MCP server that breaks on demand. Test your client against auth failures, disappearing tools, flaky responses, and token expiry.