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Arcjet

Arcjet is a security platform that integrates AI-driven threat analysis directly into modern codebases, enabling developers to embed robust security measures without compromising flexibility. By embedding AI into the application code, Arcjet provides real-time protection against sophisticated threats, allowing developers to collaborate with security teams to prevent fraud and abuse effectively. Founded in 2023, Arcjet is utilized by over 1,000 developers across AI and e-commerce sectors to secure more than 500 production applications.

Leadership & Board

Latest Estimated Valuation

Estimated Valuation: ―
Total Amount Raised: $8M
Total Funding Rounds: 1
Latest Funding Amount: $8M
Latest Funding Round: Series A
Post-Money Valuation: ―

Funding Round

Funding Date	Funding Round	Amount Raised	Post-Money Valuation
Oct 08, 2025	Series A	$8.30M	―

Investors

Investor Name	Funding Round
Andreessen Horowitz	Series A
Seedcamp	Series A
Plural	Series A
Ott Kaukver	Series A
Jeff Lawson	Series A
Feross Aboukhadijeh	Series A

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Related News and Analysis

Arcjet Extends AI Runtime Security Platform to Coding Agents Across Developer Endpoints

Arcjet Extends AI Runtime Security Platform to Coding Agents Across Developer Endpoints

New updates have been reported about Arcjet. Arcjet has expanded its AI runtime security platform with a new product, Arcjet Runtime Security for Coding Agents, positioning the company at the

2w ago

Arcjet Debuts Agent Runtime Security to Govern Production AI Workflows

Arcjet Debuts Agent Runtime Security to Govern Production AI Workflows

New updates have been reported about Arcjet. Arcjet has introduced an agent runtime security platform designed to give engineering and security teams granular control and visibility over AI agents operating

1M ago

Arcjet Launches Advanced Bot Signals to Counter Sophisticated Browser Automation Without CAPTCHAs

Arcjet Launches Advanced Bot Signals to Counter Sophisticated Browser Automation Without CAPTCHAs

New updates have been reported about Arcjet. Arcjet has introduced Advanced Bot Signals, a new capability that integrates browser telemetry directly into its runtime security model to help customers block

4M ago

Arcjet Extends Runtime Security to AI Agent Workflows With New Guards Capability

Arcjet Extends Runtime Security to AI Agent Workflows With New Guards Capability

New updates have been reported about Arcjet. Arcjet has launched Guards, a new runtime security feature that embeds policy enforcement directly inside AI agent workflows, queue consumers, and other non-HTTP

5M ago

Arcjet Launches Prompt Injection Defense to Harden Production AI Endpoints

Arcjet Launches Prompt Injection Defense to Harden Production AI Endpoints

New updates have been reported about Arcjet. Arcjet has introduced an AI Prompt Injection Protection capability that inspects prompts at the application boundary and blocks hostile instructions before they reach

7M ago

Arcjet Releases Stable v1.0 JavaScript SDK, Formalizing Production-Grade Security Platform

Arcjet Releases Stable v1.0 JavaScript SDK, Formalizing Production-Grade Security Platform

New updates have been reported about Arcjet. Arcjet has moved its JavaScript SDK out of beta with the launch of v1.0, signaling a stable, production-ready API that is intended to

8M ago

Arcjet Extends Application-Layer Security Platform with Open-Source Python SDK

Arcjet Extends Application-Layer Security Platform with Open-Source Python SDK

New updates have been reported about Arcjet. Arcjet has expanded its application-layer security platform to Python, launching an open-source SDK that allows development teams to embed bot protection, rate limiting,

9M ago

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