API Integration
| Server | Language | Stars | Downloads |
|---|---|---|---|
| openweathermap-mcp-server A lightweight MCP server using Bun to fetch current and 5-day weather data from OpenWeatherMap APIs. Built with @modelcontextprotocol/sdk, Zod for validation, and Axios for API calls. Provides tools to get weather info by latitude and longitude over stdio transport. | TypeScript | 0 | — |
| OpenWebSearch Web search using free multi-engine search (NO API KEYS REQUIRED) — Supports Bing, Baidu, DuckDuckGo, Brave, Exa, Github, Juejin, and CSDN. | — | — | — |
| OpenZiti Network Management Manage OpenZiti zero-trust networks — through natural language | — | — | — |
| opmanager-mcp-server Model Context Protocol (MCP) server for ManageEngine OpManager API integration | Python | — | — |
| opnsense-mcp-server Modular MCP server for OPNsense firewall management - 88 tools providing access to 2000+ methods through AI assistants | JavaScript | 51 | — |
| Opportunity MCP Search youth opportunities (scholarships, fellowships, internships) from any AI assistant. | Python | — | — |
| OpsConduit Jobber MCP Customer-hosted read-only MCP server for Jobber ops reports, OAuth setup, and GraphQL validation. | TypeScript | — | — |
| Optical Context MCP Compress OCR-heavy PDFs into dense packed images so agents can work with long visual documents. | Python | 1 | — |
| optillm Optimizing inference proxy for LLMs | Python | 4.1k | — |
| options-analytics Real-time options analytics MCP server. 23 tools covering gamma/delta/vanna/charm exposure (GEX/DEX/VEX/CHEX), dealer positioning, 0DTE analytics, volatility surfaces, SVI parametrization, arbitrage detection, variance swaps, VRP dashboard, Black-Scholes greeks, IV solver, Kelly criterion sizing, option quotes, historical tick data, and key options levels for US equities. Streamable HTTP transport, API key auth. | — | — | — |
| optuna-mcp The Optuna MCP Server is a Model Context Protocol (MCP) server to interact with Optuna APIs. | Python | 76 | — |
| oracle.oci-api-gateway-mcp-server OCI API Gateway MCP server | Python | — | — |
| oracle.oci-api-mcp-server OCI CLI MCP server | Python | 367 | — |
| orange-raccoonai-mcp-server A MCP server for Raccoon AI LAM API | Python | — | — |
| orange-typecast-api-mcp-server MCP Server for typecast-api | Python | — | — |
| OrbiAds — Google Ad Manager MCP Server Manage Google Ad Manager campaigns via MCP: orders, creatives, targeting & reports. | — | — | — |
| Orbis API Marketplace Browse, subscribe to, and call 3,000+ APIs autonomously. x402 USDC pay-per-call on Base. | — | — | — |
| OrbitEOS Energy Management Energy management platform — 61 tools for solar, battery, grid, and EV charging control | — | — | — |
| Orb Platform 162K English words, 74K lessons, knowledge graph, semantic reverse-dictionary search. | — | — | — |
| ORBT - The first Bitcoin-native credit rating agency! Bitcoin-native credit ratings. ⚡ Lightning pay-per-query (99 sats) or API subscriptions. | TypeScript | — | — |
| Orbuc On-chain stablecoin market cap and Bitcoin institutional holdings data. | — | — | — |
| orca-mcp-server Go from natural language to verified finite state machines — topology bugs caught before code runs. | TypeScript | — | — |
| OrcaRouter Browse 160+ LLM models and live pricing — no API key needed for catalog. Add key to route chat. | TypeScript | — | — |
| Orcid ORCID public researcher records (works, employment, education) | — | — | — |
| Orcool Studio MCP AI tools for mobile app ad production: concepts, avatars, video rendering, performance feedback. | — | — | — |