Real AI agent use cases, with sources and setup prompts

Run your own LLM proxy to see exactly what your agents and apps spend

A builder argues the provider dashboards are not real token statistics and routes every agent, harness and app through a self-hosted LLM proxy instead. One endpoint covers many providers and models, logs which key called which model from which client and when, and hands out virtual API keys so the main key is not pasted into every tool.

$17/mo1 hourIntermediateSource linked

Source

amrrs on Hacker News · 2026-10-18 · Project link

Written in our own words. Credit to the original author. Link checked 2026-10-19.

What they did

A builder argues the provider dashboards are not real token statistics and routes every agent, harness and app through a self-hosted LLM proxy instead. One endpoint covers many providers and models, logs which key called which model from which client and when, and hands out virtual API keys so the main key is not pasted into every tool.

Result (as claimed)

Time-series usage per key and model on infrastructure he controls; the post reached 210 points on Hacker News.

Tools they used

Cost: OpenRouter: free plan, paid from Pay per token; Claude Code: from $17/mo; OpenAI Codex: free plan, paid from $8/mo.

Set it up

  1. Pick a contained repo or task

    Start on a branch or side project where mistakes are cheap.

  2. Install and configure

    Set up OpenRouter, Claude Code, OpenAI Codex. Read what it can run on your machine and limit permissions where possible.

  3. Run it on a real task

    Give it a well-scoped issue and let it work. Review the diff like any pull request.

  4. Add guardrails

    Keep tests and CI in the loop, and never let an agent push to main or touch production secrets unattended.

Copy the full setup prompt

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Run your own LLM proxy to see exactly what your agents and apps spend
What the original author did: A builder argues the provider dashboards are not real token statistics and routes every agent, harness and app through a self-hosted LLM proxy instead. One endpoint covers many providers and models, logs which key called which model from which client and when, and hands out virtual API keys so the main key is not pasted into every tool.
Reported result (as claimed by the author): Time-series usage per key and model on infrastructure he controls; the post reached 210 points on Hacker News.
Source: https://news.ycombinator.com/item?id=50145507
Tools they used: OpenRouter, Claude Code, OpenAI Codex
Category: Dev & ops

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to vibe code an app with Claude Code · How to run multiple coding agents together · How to cut AI coding agent costs and token use

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