Show HN: Preloop: Open-source control plane for AI agents. See, govern, cut cost
Preloop is an open-source platform that provides a control plane for AI agents, integrating tool access firewalls, model gateways, policy enforcement, and observability. The system includes a CLI for discovering and onboarding local agents and can be deployed via Preloop Cloud or self‑hosted infrastructure. It aims to centralize governance, cost management, and audit capabilities that are typically spread across multiple vendors.
- ▪Preloop combines an MCP firewall, an AI model gateway, and policy‑as‑code features into a single self‑hostable stack.
- ▪The CLI can discover existing agents, rewrite their configurations, and route tool and model calls through Preloop’s governance layers.
- ▪Supported agents include Claude Code, OpenClaw, Cursor, Gemini CLI, and any MCP‑compatible runtime.
- ▪Preloop provides runtime observability, human approval workflows, and cost analytics to help teams control AI agent behavior and spending.
Hacker News (AI / LLM) files mainly under ai. We currently carry 2,586 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/preloop/preloop |
| Publication time | Tue, 28 Jul 2026 12:50:20 +0000 |
| Retrieval time | 2026-07-28T12:54:47.015Z |
| Last seen | 2026-07-28T12:54:47.015Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | TyeqrtOW0FsX · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Preloop - The Open-Source AI Agent Control Plane Preloop is the open-source AI agent control plane. It unifies an MCP firewall for tool access, an AI model gateway for cost, safety and attribution, policy-as-code with human approvals, runtime session observability, and audit trails - in a single self-hostable platform. Use Preloop to onboard existing agents with one command, and to deploy event-driven agentic automations with governed tools and budgets. Works with OpenClaw, Claude Code, Codex CLI, Cursor, Gemini CLI, Hermes, OpenCode, Windsurf, and any MCP-compatible agent or managed runtime.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.