HarnessRouter: Open-Sourcing the World’s First Unified Interface for Agent Harnesses and the Unified Harness Protocol
Plug Codex, Claude Code, and Hermes into your backend on your own infrastructure. Introducing the Unified Harness Protocol (UHP), an open standard for connecting applications to different agent harnesses.
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YC · launched Aug 17, 2026 · 6 upvotes (top 87%) · 0 views
Niche: multi-agent frameworks and protocols · 299 launches, 11 in the last 7 days ▼ -31% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI-native
- Commercial product
- Developer Tools
- SaaS
- Open Source
- Infrastructure
- AI
Visit website ↗ Source listing ↗
More like this: all 299 launches in multi-agent frameworks and protocols →
Could you build this?
Partial Standardizing agent APIs and building an orchestration gateway is feasible, but building low-latency, multi-tenant serverless execution sandboxes with secure isolated runtimes is technically demanding.
What it would actually take: A production version requires an API gateway (e.g., Go/Node.js) translating disparate agent protocols (Claude Code, Hermes, Codex) into a unified JSON/gRPC schema (UHP). The hard engineering piece is the secure serverless sandbox runner (using Firecracker microVMs or gVisor), managing bidirectional streaming multiplexing, file sync, and robust state persistence across dynamic sessions. Deep systems programming and virtualization/container orchestration expertise are required.
Competitors
Other products that read as similar to this one : 260 launches clear the similarity bar, closest 8 shown.
Attention rank: #224 of 261 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 257 days after the earliest competitor.
- HarnessRouter: Unified interface for agent harnesses · hn · 2026-08-17 · 10 upvotes · similarity 0.68
- HarnessRouter Community Edition · ph · 2026-08-16 · 392 upvotes · similarity 0.66
- UHP: Unified Harness Protocol by HarnessRouter · yc · 2026-10-14 · 6 upvotes · similarity 0.64
- Harness by Autonomous · ph · 2026-10-16 · 330 upvotes · similarity 0.60
- harness-bridge · github · 2026-09-17 · 83 upvotes · similarity 0.50
- HarnessRouter: Bring the World's Best AI Agents Into Your App, With One API · yc · 2026-07-23 · 29 upvotes · similarity 0.49
- I built an open source multi-agent harness in Go · hn · 2026-04-08 · 6 upvotes · similarity 0.49
- Harness² · ph · 2026-10-20 · 167 upvotes · similarity 0.48
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