API Integration
| Server | Language | Stars | Downloads |
|---|---|---|---|
| OpenBoss Public internet HP bar. Agents smack it over MCP. They cannot complete payment. | — | - | - |
| Open Brain Graph-structured MCP memory server. 37.2% LongMemEval. Auto dedup, themes, decay, synthesis. | Python | 38 | - |
| OpenBudget Provides access to Israel's OpenBudget API for querying and searching government financial data including budgets, contracts, and support payments | — | 12 | - |
| OpenBusData MCP server for UK Bus Open Data with timetable parsing, journey planning and live tracking. | Python | - | - |
| Opencages OpenCage forward + reverse geocoding (free key, 2500/day) | — | - | - |
| Open Call Portal Search PII-free opportunities, availability, and live events; prepare safe no-write form handoffs. | — | - | - |
| OpenChainBench Live, neutral benchmarks for public RPC latency, oracles, bridges, perp DEX, and prediction markets. | — | - | - |
| Opencitations OpenCitations COCI — open-license citation index by DOI | — | - | - |
| OpenClaw Consensus 9-LLM consensus + disagreement scoring + cheapest-route picks to fight hallucinations. | Python | - | - |
| OpenClaw FinOps Verified cloud cost forecasting for AI agents. AWS, GCP, Azure pricing matrix. | — | - | - |
| OpenClaw MCP Ecosystem 9 remote MCP servers on Cloudflare Workers for AI agents. Free tier + Pro API keys. | — | - | - |
| OpenClaw Trust Scorer Solana wallet trust scoring: tier, tx count, balance, liveness. | — | 0 | - |
| openclaw-x402 Drop-in x402 payment middleware for Flask APIs. Machine-to-machine payments on Base chain. | Python | 69 | - |
| OpenClaw量化交易工具集 量化交易MCP工具集，27个工具覆盖策略指标、回测引擎、风控分析和数据管线 | — | - | - |
| opencode-cli-mcp MCP server that wraps opencode CLI's HTTP API (opencode serve) into MCP tools, plus a webapp dashboard. | TypeScript | 0 | - |
| opencode-mcp MCP server for OpenCode AI — 70 tools, 10 resources, 5 prompts. Use npx opencode-mcp with Claude Desktop, Claude Code, Cursor, Windsurf, or any MCP client. | TypeScript | 139 | - |
| OpenCode MCP Bridge Coordinate and verify OpenCode workers over MCP Streamable HTTP. | — | - | - |
| opencode subagents Run Claude Code subagents on cheaper opencode models (DeepSeek, opencode Go) with native parity. | TypeScript | - | - |
| opencode-webui clone and change from https://github.com/threehymns/opencode-webui | TypeScript | 1 | - |
| Opencollective Open Collective public collective/transaction data | — | - | - |
| open-compute (computer-use) Model-agnostic computer-use MCP: screenshot, safety-gated actions, Windows UIA targeting. | TypeScript | - | - |
| Open Contracting Open Contracting MCP — international public procurement: government tenders | — | - | - |
| Open Corporates OpenCorporates MCP — Global company registry data (free, no auth, rate limited) | — | - | - |
| opendart-mcp-server OpenDART API MCP Server - 85 Korean disclosure and financial data tools via Model Context Protocol | TypeScript | 2 | - |
| Opendata Canada open.canada.ca — Canada national open-data catalogue (CKAN) | — | - | - |