Marrow is the judgment layer for AI agent fleets, different from memory tools (mem0, Letta, ByteRover) and helps agents make better decisions, not just remember more.

Core differences:

Workflow enforcement — HTTP 409 if the agent is out of step
Cryptographic audit chain — trace every decision
Drift rate — detect if an agent is "off course" before causing errors
Collective intelligence — learn from the decisions of other agents (k-anonymity ≥5)
Passive mode — automatically log + automatically inject intelligence, no manual setup required
Agent-narrated contribution — agents tell users how Marrow has helped

Operating loop: orient → think → act → check → commit

Website: https://getmarrow.ai

GitHub: github.com/getmarrow/marrow-sdk | github.com/getmarrow/marrow-mcp

Marrow is the judgment layer for AI agent fleets, different from memory tools (mem0, Letta, ByteRover) and helps agents make better decisions, not just remember more.

Core differences:

Workflow enforcement — HTTP 409 if the agent is out of step
Cryptographic audit chain — trace every decision
Drift rate — detect if an agent is "off course" before causing errors
Collective intelligence — learn from the decisions of other agents (k-anonymity ≥5)
Passive mode — automatically log + automatically inject intelligence, no manual setup required
Agent-narrated contribution — agents tell users how Marrow has helped

Operating loop: orient → think → act → check → commit

Website: https://getmarrow.ai

GitHub: github.com/getmarrow/marrow-sdk | github.com/getmarrow/marrow-mcp