Best OpenAI MCP Servers
OpenAI is an AI research and deployment company dedicated to ensuring that artificial general intelligence benefits all of humanity.
Why this server?
Allows OpenAI GPT models to fetch market data, screen entities, and access financial endpoints via Sugra API.
AlicenseAqualityAmaintenanceGateway connector between LLM agents and world data, providing access to financial market prices, macroeconomic indicators, and news through a bundled endpoint catalog.882MITWhy this server?
Provides integration with OpenAI's API for chat completion with automatic verification and self-healing.
AlicenseAqualityAmaintenanceVerifies AI outputs in real-time across 6 dimensions, with automatic retry and failover to ensure correct, complete, and reliable LLM responses before they reach the user's editor.253161Apache 2.0Why this server?
Enables ChatGPT to perform cross-analysis of Japanese real estate data across 10 prefectures, including market analysis, risk assessment, forecasts, and portfolio optimization.
AlicenseAqualityAmaintenance| 地価トレンド予測 | 新宿区の5年後地価をAI予測。CAGR・投資シグナル付き | | 企業立地需要分析 | 名古屋市中区のオフィス・工場需要スコアを算出 | | ファミリー向け適性評価 | 横浜市西区の教育・安全・医療スコアを総合評価 | | ポートフォリオ最適化 | 東京・大阪・埼玉の3エリアに投資配分を最適化 | | What-If シナリオ分析 | 大阪市中央区で新駅開設シナリオを試算 | | 店舗出店適地評価 | 福岡市博多区の人流・商業施設・交通データで出店適性を判定 |238761AGPL 3.0Why this server?
Integrates with OpenAI's API to enable natural language to SQL conversion for database queries.
Why this server?
Uses OpenAI to enable semantic search capabilities, allowing users to discover RAG-related MCP servers through natural language queries and embeddings-based matching.
AlicenseAqualityBmaintenanceMapRag is a discovery + routing layer for retrieval. It indexes RAG-capable MCP servers, enriches them with structured metadata, and helps agents (and humans) quickly find the right retrieval server for a task under constraints like citations, freshness, privacy, domain, and latency. MapRag does not do RAG itself. It helps you choose the best RAG tool/server to do the retrieval.6,57466MITWhy this server?
Allows OpenAI ChatGPT, Codex, and Responses API to discover and evaluate MCP servers before committing to them.

MCP Queen Registryofficial
AlicenseAqualityBmaintenanceCrawls and grades MCP servers deterministically, providing a registry, leaderboard, and API to query server grades and submit feedback.7MITWhy this server?
Uses OpenAI's API to draft acceptance checklists from a live page and requirements, which are then executed in a real browser.
AlicenseAqualityAmaintenanceBrowser acceptance testing for AI agent deliverables: verify agent output in real Chromium from JSON specs, with MCP server, visual regression, multi-browser support and GitHub Actions.441,0633MITWhy this server?
Allows OpenAI assistants (like ChatGPT/Codex) to connect to a BillingServ account for querying billing data and performing actions such as creating invoices or support tickets.

BillingServ MCPofficial
AlicenseAqualityBmaintenanceThis is an MCP server for the BillingServ API. Once it's set up, your AI assistant can look up customers, invoices, orders, packages, and reports straight from your BillingServ installation3375MITWhy this server?
Enables ChatGPT and other OpenAI-compatible clients to access Didit's identity verification, KYC, KYB, AML, fraud screening, and workspace operations through the MCP server, allowing AI agents to perform compliance and identity tasks programmatically.

Didit MCP Serverofficial
AlicenseBqualityBmaintenanceProvides 110+ tools for identity verification, compliance, and workspace operations through the Model Context Protocol.10049MIT