Database
| Server | Language | Stars | Downloads |
|---|---|---|---|
| nvd NVD MCP — wraps the NIST National Vulnerability Database API (free, no auth) | — | - | - |
| NVD (National Vulnerability Database) Provides direct access to the National Vulnerability Database (NVD) for retrieving detailed CVE information including descriptions, severity ratings, publication dates, and references by ID. | — | 7 | - |
| Obambu cPanel MCP MCP server exposing cPanel UAPI (domains, DNS, email, MySQL, files) as tools for AI assistants. | TypeScript | - | - |
| Óbito Checks for indication of death of a person from the CPF, in official databases. Platform-hosted, no | — | - | - |
| obsidian-brain Standalone Node MCP server: semantic search + knowledge graph + vault editing for Obsidian, no plugin required. | TypeScript | - | - |
| octocode Semantic code searcher and codebase utility | Rust | 475 | - |
| Offshore Leaks (ICIJ) Checks whether a name appears in the ICIJ Offshore Leaks database (offshore structures), for complia | — | - | - |
| okf-agent-memory Git-native persistent memory for AI coding agents. Implements Google OKF v0.2 with sub-300µs in-memory BM25 search, embedded MCP server, and progressive disclosure. Slashes token bloat by 80% with zero external databases or dependencies. Built in pure Go. | Go | 704 | - |
| okta-mcp-server The Okta MCP Server is a groundbreaking tool built by the team at Fctr that enables AI models to interact directly with your Okta environment using the Model Context Protocol (MCP). Built specifically for IAM engineers, security teams, and Okta administrators, it implements the MCP specification to help work with Okta enitities | Python | 38 | - |
| Oleander The all-in-one data stack for agents. Upload files, run SQL, evolve tables, and render charts. | — | - | - |
| omem Shared Memory That Never Forgets — persistent memory for AI agents with Space-based sharing across agents and teams. Plugins for OpenCode, Claude Code, OpenClaw, MCP Server. | Rust | 173 | - |
| omnifocus-mcp Let LLMs interface with your tasks and projects through the Model Context Protocol. Add, organize, and query your OmniFocus database with natural language commands. | TypeScript | 242 | - |
| Oncology DB Queries precision oncology databases including CIViC, OpenFDA, and ClinicalTrials.gov for clinical evidence and drug data. | — | 1 | - |
| OneDroid Engram Versioned agent memory in your own Postgres: portable context, permissioned, audit trail. | — | - | - |
| openakita An open-source AI assistant framework with skills and agent architecture | Python | 2.0k | - |
| Opencellid OpenCellID MCP — cell tower geolocation database (free with key) | — | - | - |
| Openchargemap Open Charge Map MCP — global EV charging station database (openchargemap.io). | — | - | - |
| openchatbi OpenChatBI is an intelligent chat-based BI tool powered by large language models, designed to help users query, analyze, and visualize data through natural language conversations. It uses LangGraph and LangChain to build chat agent and workflows that support natural language to SQL conversion and data analysis. | Python | 580 | - |
| openchronicle-mcp Memory database for LLM agents — persistent semantic + keyword memory, project namespacing, served o | Python | - | - |
| open-code-review Open-source & free — Battle-tested at Alibaba's scale. Hybrid architecture code review tool: deterministic pipelines + LLM Agent, precise line-level comments, built-in fine-tuned ruleset (NPE, thread-safety, XSS, SQL injection), OpenAI & Anthropic compatible. | Go | 10.7k | - |
| OpenContracts The open document intelligence platform for builders and hackers - DMS for the agentic world | Python | 1.5k | - |
| open-cowork Open-source AI agent desktop app for Windows & macOS. One-click install Claude Code, MCP tools, and Skills — with sandbox isolation, multi-model support, and Feishu/Slack integration. | TypeScript | 2.2k | - |
| @openenthrium/oe-mcp OE MCP Server - connect Claude Code, Cursor & Windsurf to enterprise data sources. One binary, one JSON config. | TypeScript | - | - |
| Openfoodfacts Open Food Facts — collaborative food product database | — | - | - |
| Open Food Facts Search and contribute to the Open Food Facts database. | TypeScript | 3 | - |