# Nuntior (https://nuntior.com) > Nuntior is the Unified Execution & OAuth Layer for AI Agents — Social, Messaging, Ads, Blogs & Telecom via REST API and a 12-Tool Semantic MCP Server. ## Key Capabilities - **18+ Social & Messaging Platforms**: X (Twitter), LinkedIn, Instagram, Facebook, Threads, TikTok, YouTube, Reddit, Bluesky, Mastodon, Farcaster, Pinterest, Google Business, Telegram, Discord, WhatsApp. - **Multi-User Workspace Auth & Stripe Checkout**: `POST /v1/auth/signup`, `POST /v1/auth/login`, `POST /v1/billing/checkout`, `GET /v1/billing/portal`. - **Hybrid Auth (1-Click OAuth + BYOK AES-256-GCM Vault)**: Connect via Nuntior's managed OAuth apps or store your own upstream platform API credentials encrypted at the edge. - **12 Semantic MCP Tools (~2,400 tokens)**: `posts_publish`, `inbox_reply`, `social_listen`, `ads_campaign`, `telecom_comms`, `blog_publish`, `media_generate`, `accounts_manage`, `analytics_query`, `webhooks_manage`, `queue_schedule`, `contacts_crm`. ## Essential URLs - Interactive Web Console: https://nuntior.com/app - Developer & MCP Documentation: https://nuntior.com/docs - Streamable HTTP MCP Server: https://nuntior.com/mcp ## Quickstart POST https://nuntior.com/v1/auth/signup with {"magic": true} to provision an instant workspace and API key.