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Every AI coding agent on your machine, on one screen.
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preloop
The open-source AI agent control plane: MCP firewall, model gateway with budgets, human approvals and runtime observability.
Day 43 since launch · Launched 25 August 2026
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What is preloop?
preloop is an open-source control plane for AI agents. It adds an MCP firewall, a model gateway with budgets, human-in-the-loop approvals and runtime observability so teams can run agents in production safely.
Pros
- Budgets and approvals for agent runs
- MCP firewall for tool safety
- Runtime observability built in
Cons
- Infrastructure to deploy and maintain
- Overkill for hobby agents
- Early ecosystem
Who should use preloop
Teams putting AI agents into production who need guardrails, budgets and auditability.
Who may not need it
Individual users running a single local agent.
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