"A system for managing emails, calendar events, and summarizing Obsidian notes" matching MCP connectors:

Official MCP server for SupplyGraph.AI. Exposes supply-chain agents as tools: company search, tariff calculation, enterprise-change monitoring, and risk prediction. Auth: Authorization Bearer API key from Console → Developer Settings → A2A/MCP Keys.

Shared memory for AI agents. One address per fact, one signature you check. No key to read.

Persistent project context for Claude. IANA-registered .faf format.

Persistent project context for xAI Grok. IANA-registered .faf format.

Query Microsoft Patch Tuesday security updates (MSRC) with EPSS and CISA KEV enrichment

SupplyGraph.AI MCP server for supply-chain intelligence and China business data. Tools include company search, tariff calculation, enterprise-change monitoring, risk prediction, POIs, industrial parks, regional indicators, industry-chain enterprises, company registry data, and nearby location insights.

SupplyGraph.AI MCP for Daasmart: company, tariff, geo and registry data.

US market snapshot, stock fundamentals, prices, statements, news and analyst views

Creative-intelligence MCP for campaign strategy, ad builds, QA, and reporting.

Generate authentic pixel art - sprites, animations, and tilesets - from any MCP client

Public agentic AI doctrine tools plus authenticated architecture, design, and spec validators.

Read-only MCP tools for Total Parks-listed Australian holiday parks, caravan parks, and campgrounds.

Query STRING interactions, enrichment, annotations, homology, and PPI networks.

Run and manage H Company's Computer-Use Agents from any MCP client.

Search WindowsForum.com threads, posts, and Windows news; fetch documents and Microsoft KB info.

Hosted MCP server for Retro Diffusion. Generate authentic, grid-aligned pixel art — sprites, characters, animations, and tilesets — from Claude, Cursor, VS Code, Windsurf, or any MCP client. 90+ styles, free cost estimation, pay-per-generation with no subscription and credits that never expire.

Constitutional AI kernel with 13 MCP tools, 888_JUDGE verdict pipeline, and VAULT999 ledger.

Brazilian fiscal MCP server - issue NF-e, NFC-e, NFS-e, CT-e, MDF-e and DC-e via SEFAZ.

The industry standard reference for safe, observable, and steerable AI agent UX. Browse and search the 10 Blueprint principles, principle clusters, curated implementation examples, and application guides. 13 public tools require no credentials. Tools for learning path, coaching context, and handoffs require a Firebase Bearer token. Validation and usage summary tools require a Pro or Teams membership.

Foundation discovery and grant intelligence for nonprofits. 174K+ US funders, IRS 990 data.