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OneCLI

YC S26

San Francisco, US · Founded 2026 · 2 employees on LinkedIn · 1 known investors

OneCLI is an open-source credential gateway that secures AI agents by injecting API keys at the network layer, preventing agents and LLMs from accessing credentials directly. It works across any agent framework and enforces policies at the proxy level for endpoint blocking, rate limiting, and approval workflows.

Founders & leadership· Y Combinator alumni (S26)

OneCLI was founded in 2026 by Guy Ben Aharon and Jonathan Fishner.

GBGuy Ben Aharon
Guy Ben Aharonin𝕏Co-Founder & CTOGuy Ben Aharon was the first engineer at Argon Security (acquired by Aqua), where he led early product development. He has prior experience at Aqua Security and Wix, and served in Israel's IDF Unit 8200; he holds a BSc in Computer Science from Ben-Gurion University.
JFJonathan Fishner
Jonathan Fishnerin𝕏Co-Founder & CEOHe previously held the role of Principal Security Architect at Axis Security and worked as a Software Engineer at Fiverr for four years. He began his career in the IDF's Unit 8200, where he established and led the unit's first Big Data team.

Investors · 1

Frequently asked questions

What does OneCLI do?
OneCLI is an open-source credential gateway that secures AI agents by injecting API keys at the network layer, preventing agents and LLMs from accessing credentials directly. It works across any agent framework and enforces policies at the proxy level for endpoint blocking, rate limiting, and approval workflows.
Who founded OneCLI?
OneCLI was founded by Guy Ben Aharon, Jonathan Fishner in 2026.
Who are OneCLI's investors?
OneCLI's investors include Y Combinator.
Where is OneCLI headquartered?
OneCLI is headquartered in San Francisco, US.