MCP Useful Assistant

Monetize your AI agent with contextual product recommendations

Precision Calc MCP: Decimal-only deterministic calculation server for LLM tool use

Local-first cross-agent memory MCP. 6-layer structured brain (goal/context/emotion/impl/caveat/learning) with token-saving file diff cache (86% measured savings on re-reads)

Provides HR-related tools for a corporate dystopia.

Access and manage JIRA issues, projects, and users with optimized data payloads for AI context windows.

MCP server that gives AI agents and teams secure, role-based access to Stripe billing operations — customer lookups, subscription management, refunds, invoice history — without exposing Stripe dashboard credentials. Sub-100ms reads via local Stripe sync engine. 4 permission levels with audit logging. $14.99/month.

Integrates with the Cal.com Calendar API for appointment scheduling.

A desktop extension for the Things 3 task manager, providing advanced features like task movement, editing, and backups.

Automate AI-powered video compilation workflows using n8n.

A research server that retrieves and creates survey data pages in Notion.

🏠 🍎 🪟 🐧 - A self-contained Memory server with single-binary architecture (embedded DB & models, no dependencies). Provides persistent semantic and graph-based memory for AI agents.