# Oso

> Oso is a New York software company that helps developers decide who may do what inside applications, then helps security teams see and control what AI agents do with inherited access. Its products span a managed authorization service, open-source policy tooling, and agent monitoring and control.

- **Founded:** 2018
- **Headquarters:** New York, United States
- **Founders:** Graham Neray (Co-founder and CEO), Sam Scott (Co-founder and former CTO (2018-2025))
- **Products:** Oso open-source authorization library and Polar, Oso Cloud, Local Authorization, Oso MCP server, Oso for Agents
- **Notable:** Oso reported more than $25 million raised after its 2023 Series A-1., InfoWorld named Oso Cloud a finalist in its 2025 Technology of the Year awards for application security., Productboard reported authorization latency below 10 ms at p95 in its deployment.

## Products & services

- **Oso open-source authorization library and Polar** — A Rust-based policy engine and declarative language for modeling roles, relationships, and other application access rules.
- **Oso Cloud** — Managed authorization service for storing policy and permission data and answering checks, list filtering, and related access queries through APIs.
- **Local Authorization** — Uses application data in authorization decisions without requiring all of it to be synchronized to Oso Cloud.
- **Oso MCP server** — Connects MCP-compatible AI tools to Oso Cloud for policy management and debugging.
- **Oso for Agents** — Inventories agents, records approved agent sessions, detects risky behavior, and applies agent policies and controls.

## Achievements

- Oso reported more than $25 million raised after its 2023 Series A-1.
- InfoWorld named Oso Cloud a finalist in its 2025 Technology of the Year awards for application security.
- Productboard reported authorization latency below 10 ms at p95 in its deployment.
- Duolingo reported permission changes falling from days to minutes after adoption.

## Latest updates

- **2026-04** — Oso published an article on securing agents with dynamic least privilege.
- **2026-03** — Oso and Cyera published research finding that 96% of granted application permissions were unused over a 90-day observation window.
- **2026-02** — Oso announced an agent security integration with Tailscale Aperture.
- **2026-01** — Oso introduced an early release of Oso for Coding Agents, initially focused on visibility and alerts.
- **2025-08** — Oso launched an MCP server for interacting with Oso Cloud from AI tools.
- **2025-07** — Oso joined AWS ISV Accelerate and listed on AWS Marketplace.

## Links

- Website: https://www.osohq.com/
- LinkedIn: https://www.linkedin.com/company/osohq/
- Twitter/X: https://twitter.com/osoHQ
- GitHub: https://github.com/osohq
- Facebook: https://facebook.com/Osohq/

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Profile page: https://yespress.io/oso
Published by YesPress — https://yespress.io
Last updated: 2026-09-29