# TigerTiger MCP server (mcp.tigertiger.ai) > This host is the API and MCP endpoint for TigerTiger, not the marketing site. For what TigerTiger is and what it sells, read https://tigertiger.ai/llms.txt. ## Connect - MCP endpoint (streamable HTTP): https://mcp.tigertiger.ai/mcp - Server card: https://mcp.tigertiger.ai/mcp/server-card ## Authentication Send your TigerTiger API key as `Authorization: Bearer `. The MCP initialize call and the public tools list work without a key; tool calls are authorised per key. Get a key by signing up at https://tigertiger.ai (the free plan needs no card). ## Product, pricing, policies - https://tigertiger.ai/llms.txt - https://tigertiger.ai/pricing.md