Show HN：Plano – 具備 AI 代理協調功能的邊緣與服務代理器

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Ship agents faster. Plano is delivery infrastructure for agentic applications: an AI-native proxy & dataplane that offloads plumbing work, so you stay focused on your agent's core logic.

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The AI-native proxy server and data plane for agentic apps.
Plano pulls out the rote plumbing work and decouples you from brittle framework abstractions, centralizing what shouldn’t be bespoke in every codebase - like agent routing and orchestration, rich agentic signals and traces for continuous improvement, guardrail filters for safety and moderation, and smart LLM routing APIs for model agility. Use any language or AI framework, and deliver agents faster to production.

Quickstart Guide •
Build Agentic Apps with Plano •
Documentation •
Contact

Star ⭐️ the repo if you found Plano useful — new releases and updates land here first.

Overview

Building agentic demos is easy. Shipping agentic applications safely, reliably, and repeatably to production is hard. After the thrill of a quick hack, you end up building the “hidden middleware” to reach production: routing logic to reach the right agent, guardrail hooks for safety and moderation, evaluation and observability glue for continuous learning, and model/provider quirks scattered across frameworks and application code.

Plano solves this by moving core delivery concerns into a unified, out-of-process dataplane.

Plano pulls rote plumbing out of your framework so you can stay focused on what matters most: the core product logic of your agentic applications. Plano is backed by industry-leading LLM research and built on Envoy by its core contributors, who built critical infrastructure at scale for modern worklaods.

High-Level Network Sequence Diagram:

Jump to our docs to learn how you can use Plano to improve the speed, safety and obervability of your agentic applications.

Important

Plano and the Arch family of LLMs (like Plano-Orchestrator-4B, Arch-Router, etc) are hosted free of charge in the US-central region to give you a great first-run developer experience of Plano. To scale and run in production, you can either run these LLMs locally or contact us on Discord for API keys.

Build Agentic Apps with Plano

Plano handles orchestration, model management, and observability as modular building blocks - letting you configure only what you need (edge proxying for agentic orchestration and guardrails, or LLM routing from your services, or both together) to fit cleanly into existing architectures. Below is a simple multi-agent travel agent built with Plano that showcases all three core capabilities

📁 Full working code: See demos/use_cases/travel_agents/ for complete weather and flight agents you can run locally.

1. Define Your Agents in YAML

2. Write Simple Agent Code

Your agents are just HTTP servers that implement the OpenAI-compatible chat completions endpoint. Use any language or framework:

3. Start Plano & Query Your Agents

Prerequisites: Follow the prerequisites guide to install Plano and set up your environment.

4. Get Observability and Model Agility for Free

Every request is traced end-to-end with OpenTelemetry - no instrumentation code needed.

What You Didn't Have to Build

Why it's efficient: Plano uses purpose-built, lightweight LLMs (like our 4B-parameter orchestrator) instead of heavyweight frameworks or GPT-4 for routing - giving you production-grade routing at a fraction of the cost and latency.

Contact

To get in touch with us, please join our discord server. We actively monitor that and offer support there.

Getting Started

Ready to try Plano? Check out our comprehensive documentation:

Contribution

We would love feedback on our Roadmap and we welcome contributions to Plano! Whether you're fixing bugs, adding new features, improving documentation, or creating tutorials, your help is much appreciated. Please visit our Contribution Guide for more details

Star ⭐️ the repo if you found Plano useful — new releases and updates land here first.

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Ship agents faster. Plano is delivery infrastructure for agentic applications: an AI-native proxy & dataplane that offloads plumbing work, so you stay focused on your agent's core logic.

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