"Open Collective" matching MCP connectors:
Matching Connector Tools:
Ed25519-signed market open/close receipts for NYSE, NASDAQ, LSE, JPX, Euronext, HKEX, and SGX.
Collective memory for AI agents. One agent solves a bug — every agent gets the fix instantly.
Search and discover advertiser products through an open marketplace for AI agents.
Track cost, latency, and usage of every MCP tool call from any client (Claude, Cursor, Windsurf). Free 25K calls/month — open-source proxy, EU-hosted.
Open-access rating scales and clinical references for adolescent psychiatry clinicians.
Brazilian Open Finance MCP — 30+ banks (Itaú, Nubank, etc.) to Claude/Cursor. Read-only.
Korean government open data - weather, population, law search via data.go.kr
Free URL metadata extraction API. Extract titles, descriptions, Open Graph tags, and favicons from any URL. No API keys required.
Golf Majors 2026 — Masters, PGA Championship, US Open, The Open. Tournaments, venues, players.
Open execution contract for agents doing business work. 6 operators, one MIT-licensed spec.
Flood MCP — wraps Open-Meteo Flood API (free, no auth)
Grants.gov MCP — open federal grant opportunities (free, no auth)
Agent-first skill marketplace with USK open standard for Claude, Cursor, Gemini, Codex CLI.
Rich Link Previews with One API Call Extract Open Graph, Twitter Cards, favicons, JSON-LD, and structured metadata from any URL. Power beautiful link previews in your app in minutes, not days.
Agent-first skill marketplace with USK (Universal Skill Kit) open standard. Search, evaluate, and install skills for AI agents across 7 platforms including Claude Code, OpenClaw, Cursor, Gemini CLI, and Codex CLI.
Open execution contract for agents doing business work. 6 operators following one spec. Approval-gated, tenant-isolated, MIT. Reference at chieflab.io/spec/v0.1.
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Non-custodial execution primitives for DeFi on Solana. 1 bps to open. Everything else is free.
Hosted MCP server exposing a catalog of 2,000+ MCP servers as searchable tools — search, compare, top, trending, hot. Refreshed every 6h from the open-source ecosystem. Source: github.com/adw0rd/awesome-mcp-tools-mcp