# Sightline Sightline is the personal finance backend for your agent. It keeps one household model behind 32 MCP tools: 19 read and 13 write. The human approves each agent or app grant. The private preview is free. No price is set. MCP: https://my.sightlineapp.com/mcp Control page: https://my.sightlineapp.com/control - [Connect an agent](https://www.sightlineapp.com/agents) - [Household model and tools](https://www.sightlineapp.com/model) - [Build an app](https://www.sightlineapp.com/build) - [Security and privacy](https://www.sightlineapp.com/security) - [Example apps and CLI](https://www.sightlineapp.com/apps) - [Complete app guide and tool index](https://www.sightlineapp.com/llms-full.txt) Read the complete guide before you build an app. Read get_started_with_sightline before account setup. An app uses OAuth 2.1 with PKCE and the same public tools as an agent.