"A server for building out n8n from scratch" matching MCP connectors:

Official MCP: continuous supply-chain risk monitoring and early warning, not a one-off report. Register and create a key at https://supplygraph.ai/zk_chat_os/dashboard/dashboard.html — if you are not signed in you will be redirected to login; new users can register there. After login, open A2A / MCP and click Create Production Key or Create Sandbox Key. Send the header as Bearer <api_key> (one Bearer prefix, then the raw key). Optional for initialize and tools/list; required for tools/call.

Search scientific papers with structured experimental data from full-text studies

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

Live market data, signals, positions, and macro analysis for crypto, KR stocks, and US stocks.

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

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

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

Persistent project context — Rust-native MCP server. IANA-registered .faf format.

Official MCP: continuous supply-chain risk monitoring and early warning, not a one-off report.

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.

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

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

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

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

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

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.

AI-analyzed startup opportunities from Reddit, Hacker News & Product Hunt, with commercial scores.

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.