Lineation vs Substructure

Lineation is the accountability layer for AI agents, zero-trust agent identity, LLM gateway, and MCP gateway with cross-provider policy, runtime defense, and forensic...

subs is an agent harness for the cloud. It runs an unprivileged agent loop with no system access. It uses MCP servers for tools. It can run locally or as a client and server.

About Lineation

Lineation is the accountability layer for AI agents, zero-trust agent identity, LLM gateway, and MCP gateway with cross-provider policy, runtime defense, and forensic lineage. Start free in the cloud or book an on-prem demo. Lineation gives security and platform teams one line of defense, zero-trust agent identity, an LLM gateway and MCP gateway across every model and tool, policy that travels with the workflow, and an incident story your auditors can follow. Listing here reflects integration compatibility and does not imply endorsement, partnership, or certification by any of the companies shown.

About Substructure

subs is an agent harness for the cloud. It runs an unprivileged agent loop with no system access. It uses MCP servers for tools. It can run locally or as a client and server. Create the project from the file, then give it your LLM key. Configure the engine to send a webhook to your system and take complete control over the agent loop and Slack agent behavior. You handle a webhook, customizing just the steps you care about.