API Integration
| Server | Language | Stars | Downloads |
|---|---|---|---|
| io.github.opcastil11/mcp-prowl Discover, evaluate, and compare SaaS APIs. Agent-verified scores and metrics. | TypeScript | - | - |
| io.github.OpenCageData/opencage-geocoding-mcp MCP server for OpenCage geocoding API | TypeScript | - | - |
| io.github.open-crater/opencrater-mcp Monetize your MCP server or CLI: live OpenCrater network stats + how maintainers earn USDC. | TypeScript | - | - |
| io.github.openenterprise-info/oe-mcp Connect Claude Code, Cursor & Windsurf to 2,600+ enterprise data sources with one binary. | TypeScript | - | - |
| io.github.Openfinanceorg/openfinance Connect your financial accounts to view balances, search transactions, and get spending insights. | TypeScript | - | - |
| io.github.openfused/openfuse-mcp Encrypted mail, shared memory, and persistent context for AI agents. | TypeScript | - | - |
| io.github.opengameapp/browser-game Local tools for planning and validating focused browser-game prototypes. | TypeScript | - | - |
| io.github.open-mcp-ai/termcp An MCP server that lets AI agents act like a human at a real terminal, local or over SSH. | — | - | - |
| io.github.openpoem/spec-score-mcp Score your specs before feeding them to an LLM. MCP server with radar chart visualization. | TypeScript | - | - |
| io.github.openpouch/openpouch Agent-native hosting: deploy any folder to a live URL in one command. No approve tool. | TypeScript | - | - |
| io.github.OpenWeb-Ninja/openwebninja-mcp Official MCP server for OpenWeb Ninja APIs - 40+ real-time web data and SERP APIs as MCP tools | TypeScript | - | - |
| io.github.operantlabs/operant-mcp Security testing MCP server for penetration testing, forensics, and vulnerability assessment | TypeScript | - | - |
| io.github.Ophir-ai-creator/ophir Ophir protocol tools for AI agent discovery, negotiation, and settlement | TypeScript | 0 | - |
| io.github.opjhabuilds/designpin-mcp-server Push HTML prototypes to DesignPin for team review and pull reviewer feedback into your AI. | TypeScript | - | - |
| io.github.opsloft/tariff-resolver US import duty research: HTS codes, Chapter 99 duties, MPF/HMF fees, landed cost. USITC data. | TypeScript | - | - |
| io.github.opspawn/bazaar-mcp x402 micropayment-powered developer tools: screenshots, AI analysis, PDFs, code scanning | TypeScript | - | - |
| io.github.optifeed/optifeed-radar AI visibility checker: does AI recommend your brand? GEO/AEO, runs locally, BYO keys. CLI + MCP. | TypeScript | - | - |
| io.github.OptionScope/best-electric-products Editorial picks for e-bikes, power stations, EV chargers, and robot vacuums, by use case and budget | — | - | - |
| io.github.opusgrowth/ads-mcp Manage Google, Microsoft, TikTok & LinkedIn Ads from Claude or ChatGPT — approval-gated writes. | — | - | - |
| io.github.OraclesTech/guardian-mcp Runtime AI-threat screening for coding agents: analyze, scan tool calls/outputs & docs (paid). | Python | - | - |
| io.github.Oratorian/discord-node-mcp MCP server for controlling Discord servers via bot token | TypeScript | 0 | - |
| io.github.OrbisAPI/orbis-mcp 1,000+ APIs for AI agents via x402 USDC micropayments on Base. $0.01/call, no signup. | TypeScript | - | - |
| io.github.orcalayer/orcalayer-mcp Polymarket smart-money analytics: whale leaderboard, wallet P&L, market consensus, live alerts | Python | - | - |
| io.github.orcar-studio/fascia-mcp-server Expose Fascia-deployed Tools and Entity schemas to AI agents via MCP | TypeScript | - | - |
| io.github.OrchestraPrime/orchestraprime Regulatory intelligence (FDA, ICH, EMA) and sanctions screening (OFAC, EU, UK) for Claude | TypeScript | - | - |