Manifold Raises $8 Million for AI Detection and Response

Manifold has announced it raised $8 million in a seed funding round led by Costanoa Ventures, with Cherry Ventures, Rain Capital, Modern Technical Fund and several angel investors also participating. The California-based startup, founded in 2025, has built an agentic AI Detection and Response (AIDR) platform that provides runtime visibility into agents’ activities.

It offers security teams real-time maps of the AI agents running in an organisation’s environment, detailing the tools they call, the systems they access, and the actions they take. The platform is deployed on existing infrastructure to uncover agents’ connections to MCP servers, databases, and external systems, and to flag behavioural anomalies in real time.

By providing visibility into all AI agents and their acquired access, capabilities, and exposures, Manifold enables security teams to quarantine, remediate, or terminate rogue agents promptly. The company plans to use the funding to accelerate development of its AIDR platform.