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Verify US contractor license + surety bond + insurance from official state data. WA live, CA beta.

OSS license metadata + compatibility checker MCP server.

Brazilian public procurement (PNCP) and Federal Revenue CNPJ data — 16 tools, 4 prompts.

Statute-cited lien and notice deadlines for material suppliers; lien guides for 50 states and DC.

MCP connector for Liftaven SEO research, connected search reports and reviewed website proposals.

MCP planning server for AI agents — plan management, full-text search, and task lifecycle

Read-only stats for public Telegram groups tracked by Limzo, the anti-spam bot. No API key.

Connect agents to the LINE Messaging API.

Spotify playlists from a festival lineup, a genre, a song, a playlist or a blend. Own client ID.

LingJing classroom MCP: human teaches, AI student questions; returns blindspots & summary.

LingNao: deterministic reasoning for AI agents → verified/refuted/unverifiable. ~3ms, fail-closed.

Deterministic MCP solver for real equation systems (<=6 vars), Krawczyk-certified.