"A guide for improving AI prompt output quality" matching MCP servers:

• openclaw-output-vetter-mcp

  temurkhan13

  A

  license

  A

  quality

  B

  maintenance

  MCP server for verifying AI agent claims vs reality — single-transcript inline grounding-check that flags when an agent's response states facts not in the input context, when its code silently swallows exceptions and substitutes mock data, or when its multi-turn transcript contains contradictions or unverified completion claims. Sub-second, local, free, no API calls.

  Updated 3 months ago (2026-05-10 22:44 UTC)

  4

  1

  MIT

• io.github.peterkolbe/ableton

  peterkolbe

  A

  license

  A

  quality

  C

  maintenance

  MCP server that bridges Ableton Live with AI models, enabling real-time project inspection and control such as track overview, device parameters, and audio analysis.

  Updated 3 months ago (2026-05-15 14:27 UTC)

  12

  MIT

• mcp-guide

  deeprave

  A

  license

  B

  quality

  A

  maintenance

  Enables AI agents to access and manage project guidelines, documentation, and context through a structured content system with template support and workflow management.

  Updated 3 days ago (2026-08-10 23:29 UTC)

  37

  MIT

• air-quality-mcp

  Lulu-The-Narwhal

  A

  license

  A

  quality

  C

  maintenance

  Provides real-time air quality data (US AQI, PM2.5, PM10, ozone, NO2, SO2, CO) for any city via natural language, using free Open-Meteo data and a single tool.

  Updated 3 days ago (2026-08-10 13:55 UTC)

  1

  MIT

• Book Guide MCP

  kazimrmerchant

  A

  license

  A

  quality

  A

  maintenance

  An MCP server that transforms books into agent-callable skill packages, enabling AI agents to use books as guides for evidence, procedures, and tutoring.

  Updated a month ago (2026-07-16 14:46 UTC)

  20

  1

  MIT

• pycharm-code-quality-mcp

  yingsf

  A

  license

  A

  quality

  A

  maintenance

  Connects AI coding assistants to PyCharm's code quality inspections and optionally SonarQube for IDE, providing unified, de-duplicated code analysis results without uploading source code.

  Updated 22 days ago (2026-07-23 06:57 UTC)

  8

  2

  MIT

• marketing-page-quality-gate

  MarcinDudekDev

  F

  license

  A

  quality

  B

  maintenance

  An MCP server that deterministically scores landing pages on conversion-critical signals and blocks ad spend on low-quality pages to prevent wasted budget.

  Updated 2 months ago (2026-06-25 19:45 UTC)

  8

• mcp-prompt-server

  marcmodin

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  license

  A

  quality

  C

  maintenance

  Enables dynamic prompt management by automatically discovering and serving markdown prompt files with YAML frontmatter via the Model Context Protocol.

  Updated 10 months ago (2025-10-14 19:34 UTC)

  1

  1

  MIT

• meta-prompt-mcp

  kapillamba4

  A

  license

  A

  quality

  C

  maintenance

  MCP server providing on-demand access to official prompting guides for building robust meta-prompts.

  Updated 3 months ago (2026-05-19 11:40 UTC)

  2

  2

  MIT

• just-a-mysql-mcp

  xingyuli

  A

  license

  A

  quality

  C

  maintenance

  Read-only MySQL MCP server that lets AI agents list tables, describe schemas, and run SELECT/SHOW/EXPLAIN queries with a row cap, bound to a single database for safety.

  Updated 6 days ago (2026-08-08 06:12 UTC)

  3

  MIT

• prompt-library-mcp-server

  AiAgentKarl

  A

  license

  A

  quality

  D

  maintenance

  Community-driven library of tested prompts for AI agents, enabling search, retrieval, sharing, and rating of prompts.

  Updated 4 months ago (2026-04-03 16:05 UTC)

  5

  MIT

• ckd-parent-guide-mcp

  rpint

  A

  license

  A

  quality

  C

  maintenance

  Provides deterministic parental guidance for children with chronic kidney disease, including food safety checks, lab report interpretation, and nutrient-aware food substitutions based on authoritative guidelines and the Chinese Food Composition Table.

  Updated 9 days ago (2026-08-04 13:57 UTC)

  12

  MIT

• mcp-sandbox-computer-vm-for-ai

  flujo-app

  A

  license

  A

  quality

  A

  maintenance

  MCP server that gives AI agents isolated, named Linux computers with stable IDs and lifecycle control. Supports multiple backends like Docker, Fly Machines, Modal, and E2B, with a dashboard for managing sandboxes.

  Updated a day ago (2026-08-12 20:58 UTC)

  7

  MIT

• community-prompt-voting-mcp

  AiAgentKarl

  A

  license

  A

  quality

  D

  maintenance

  MCP server for community-driven prompt voting and discovery — submit, upvote, and find the best AI prompts.

  Updated 4 months ago (2026-04-03 16:05 UTC)

  7

  MIT

• data-quality-cde-mcp-server

  frothkoetter

  A

  license

  A

  quality

  B

  maintenance

  Generates and deploys Cloudera Data Engineering (CDE) Airflow jobs from ODCS data contracts, validating live table data in CDW against schema and data-quality rules without WAP staging.

  Updated 2 days ago (2026-08-11 11:10 UTC)

  13

  Apache 2.0

• prompt-plus-plus-mcp

  bacoco

  A

  license

  A

  quality

  D

  maintenance

  An advanced MCP server that intelligently enhances prompts using 44+ metaprompt strategies, with LLM-driven strategy selection and enterprise-grade features.

  Updated a year ago (2025-06-13 07:11 UTC)

  8

  162

  9

  MIT

• OWASP Pentest Guide Knowledge

  sunick2009

  A

  license

  A

  quality

  B

  maintenance

  Read-only MCP server for precise lookup, search, and versioned retrieval of OWASP testing guides (WSTG, MASTG, ISTG, AITG) with full provenance on every result.

  Updated a month ago (2026-07-18 07:52 UTC)

  11

  Apache 2.0

• Agent Prompt Injection

  CSOAI-ORG

  A

  license

  B

  quality

  B

  maintenance

  WAF for AI agents — block prompt injection before it reaches the LLM.

  Updated 5 days ago (2026-08-08 10:54 UTC)

  5

  MIT

• vibe-prompt-mcp

  saurabhjambure-pixel

  A

  license

  D

  quality

  C

  maintenance

  Fix your vibe coding prompts before they reach the AI. Scores and rewrites across 4 dimensions — no API key, no server, just npx. Now with codebase-aware context injection for design, database, API, auth, testing, and state management.

  Updated 4 months ago (2026-04-03 07:39 UTC)

  2

  14

  MIT

• MCP Prompt Explorer Server

  Tamilarasan555

  F

  license

  -

  quality

  D

  maintenance

  A demonstration MCP server for exploring MCP prompts with 10 reusable development prompts.

  Updated 10 months ago (2025-10-14 13:21 UTC)