Run a general-purpose AI agent on your iPhone or iPad with your own API key
A developer built an AI agent app that runs directly on an iPhone or iPad. You bring your own API key and get a general-purpose agent in your pocket.
Source
@Xiao06f on X · 2026-10-19
Written in our own words. Credit to the original author. Link checked 2026-10-19.
What they did
A developer built an AI agent app that runs directly on an iPhone or iPad. You bring your own API key and get a general-purpose agent in your pocket.
Result (as claimed)
An on-device agent shell anyone with a key can try.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Define the job
Say exactly what you want done and what the agent may and may not do on your behalf.
Share only what is needed
Give iOS the minimum files or access required. Avoid sharing passwords in chat when a safer login flow exists.
Review the plan
Ask the agent to show its plan or draft before it acts, and approve each step that has real consequences.
Check the result
Confirm the outcome yourself (order placed, request sent, document understood) and keep a record.
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 a general-purpose AI agent on your iPhone or iPad with your own API key What the original author did: A developer built an AI agent app that runs directly on an iPhone or iPad. You bring your own API key and get a general-purpose agent in your pocket. Reported result (as claimed by the author): An on-device agent shell anyone with a key can try. Source: https://x.com/Xiao06f/status/2112116725173060056 Tools they used: iOS Category: Personal & life 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.
You are helping me set up this AI use case end to end in Codex. Goal: Run a general-purpose AI agent on your iPhone or iPad with your own API key What the original author did: A developer built an AI agent app that runs directly on an iPhone or iPad. You bring your own API key and get a general-purpose agent in your pocket. Reported result (as claimed by the author): An on-device agent shell anyone with a key can try. Source: https://x.com/Xiao06f/status/2112116725173060056 Tools they used: iOS Category: Personal & life 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.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Run a general-purpose AI agent on your iPhone or iPad with your own API key What the original author did: A developer built an AI agent app that runs directly on an iPhone or iPad. You bring your own API key and get a general-purpose agent in your pocket. Reported result (as claimed by the author): An on-device agent shell anyone with a key can try. Source: https://x.com/Xiao06f/status/2112116725173060056 Tools they used: iOS Category: Personal & life 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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