# Keystile

> Keystile controls what AI agents logged into a company's systems can send, change and pay. It checks every action an agent is about to take, before it runs, and decides: allow, mask the private data, hold it for a person, or block it. Every decision goes into a signed, tamper-evident record. Made by Live AI Dream (San Diego, California). Patent pending.

## What it does

- Keeps client data inside: account numbers, Social Security numbers and statements are masked or blocked before an agent sends them out.
- Catches instructions hidden in web pages, emails and tool output that try to steer an agent, and holds that agent's risky actions for a person.
- Holds risky actions for a person (new payees, large payments, access changes) with the full context on one card; an approval applies to that exact action, once.
- Per-agent permissions: each agent may use only the tools it needs.
- Spending and call limits that stop runaway agents at the limit.
- Runs on the customer's own servers, so client data stays inside.

## Who it is for

Wealth managers, banks and fintechs whose agents handle client data; IT teams and managed service providers whose agents manage accounts and devices; and teams whose agents are starting to move money.

## How teams connect

Python (one line per tool, including LangChain and OpenAI Agents SDK), MCP servers and clients, Claude Code, Cursor, Hermes Agent, or a REST API from any language. SDK: `pip install keystile`.

## Getting started

- Replay assessment: a report on a team's own agent logs showing what Keystile would have allowed, held or stopped.
- Shadow mode: Keystile records what it would decide on a live workflow without enforcing anything.
- 90-day pilot, then enforcement. Plans start free for developers on the sandbox; Pro is $50 a month; Team is $500 a month.

## Links

- Website: https://keystile.com/
- Start free: https://automations.keystile.com/sign-up?start
- Connect any chat or coding agent (for people and agents): https://demo.keystile.com/connect and https://demo.keystile.com/connect.json
- Privacy: https://keystile.com/privacy.html
- Contact: contact@keystile.com