"Identifying Servers Without Any API Key Configuration" matching MCP connectors:

Hosted endpoint for patch-tuesday-mcp: query Microsoft Patch Tuesday security updates (MSRC) with EPSS and CISA KEV enrichment. Free, no auth or API keys.

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

Hosted pay-per-use TTS: 54 neural voices, 9 languages incl. Brazilian Portuguese. $10 free credits.

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.

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

Custom metal-print storefront: catalog search, product details, shipping, reviews. Read-only.

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

500+ deterministic tools for AI agents: math, conversion, validation, hashing, encoding, date/time.

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

Generate hyper-personalized cold email sequences via MachFive API.

MCP server that delivers up-to-date Bitrix24 REST API documentation.