---
title: "How to Build Your Own Always-On AI Agent"
source: "OpenRouter：Announcements（RSS）"
source_tier: "t1"
url: "https://openrouter.ai/blog/tutorials/build-always-on-ai-agent/"
permalink: "https://feed.astralor.com/items/itm_58ae6d82a0532179ba72d67a"
published: "2026-10-31T00:00:00.000Z"
score: 57
channel: "tech"
tags: ["AI Agent","Build Your Own","Always-On","Agent","TypeScript","OpenRouter Agent SDK","Hacker News"]
---

# How to Build Your Own Always-On AI Agent

## At a glance

An always-on AI agent wakes up on a schedule, checks something with tools, and reports or acts without you asking. This tutorial builds one in TypeScript with the OpenRouter Agent SDK that watches Hacker News, remembers…

## Key points

- Build an always-on AI agent with the OpenRouter Agent SDK that runs on a schedule, remembers what it has seen, and costs under a tenth of a cent per check.

## Full text

Build an always-on AI agent with the OpenRouter Agent SDK that runs on a schedule, remembers what it has seen, and costs under a tenth of a cent per check.

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Verify against the original before citing; curated by Astral Feed: https://feed.astralor.com/items/itm_58ae6d82a0532179ba72d67a