1. Buy the practical subscriptions
If you already like Claude, keep Claude. Add ChatGPT too if you want agents with the fewest weird setup detours.
OpenAI / ChatGPT Plus or ProClaude Pro or MaxAPI billing laterAOpenAI / ChatGPT subscription — the clean agent path
OpenAI encourages normal users to access agent features through ChatGPT subscriptions rather than starting with raw API keys. As of this guide, ChatGPT agent-style features are tied to paid ChatGPT plans such as Plus, Pro, Business, Enterprise, and Edu, with plan-specific limits.
- Go to chatgpt.com.
- Subscribe to a paid plan — usually Plus for a first serious user, Pro if you live in AI all day.
- Use ChatGPT directly for OpenAI’s hosted agent features, scheduled tasks, browsing/cloud browser, app connections, and polished consumer UX.
- Later, if Minis asks for OpenAI credentials, try the built-in provider login first if available. Use API keys only if the app/tool specifically requires API access.
BClaude subscription — excellent, but a little greyer
Claude Pro/Max is worth considering if you already do good work in Claude. Claude’s subscription path clearly covers Claude’s own web/mobile/desktop experience, and Claude Code plans are subscription-friendly. For third-party apps, the exact answer can be more grey: sometimes OAuth/login works; sometimes API billing is the clean supported path.
- Go to claude.com/pricing.
- Start with Claude Pro if you are a regular user.
- Consider Claude Max if you hit limits or use Claude Code/agentic coding heavily.
- In Minis, try the Anthropic/Claude provider login if the app offers it. If that does not unlock what you need, fall back to Anthropic API billing.
CAPI keys — powerful, but not step one
API keys are for apps/tools calling models directly, automation, custom providers, heavier integrations, or model-routing setups. They are pay-as-you-go and need spending limits. Great power, tiny invoice goblin.
Subscription vs API, without the product-manager fog machine
| Path | Best for | Setup pain | Minis angle |
|---|---|---|---|
| ChatGPT Plus / Pro | OpenAI’s own agent features, cloud browser, scheduled tasks, polished consumer workflow. | Low: subscribe and log in. | Use directly. In Minis, use provider login if supported; API key only if needed. |
| Claude Pro / Max | Claude web/app work, long-form reasoning/writing, Claude Code-heavy workflows. | Low: subscribe and log in. | Try Anthropic/Claude login in Minis. Third-party entitlement can be greyer than OpenAI’s consumer agent story. |
| OpenAI API billing/key | Third-party apps, custom tools, scripts, direct model calls, automation. | Medium: platform account, billing, key, limits. | Useful if Minis asks for an OpenAI API key/provider credential. |
| Anthropic API billing/key | Direct Claude access from apps/tools, automation, custom workflows. | Medium: console account, billing, key, limits. | The clean fallback if subscription login does not cover the Minis use case. |
| OpenRouter | One account/key for many models. | Medium. | Optional. Great later when comparing models or keeping costs down. |
2. Connect accounts inside Minis
Open Minis → Settings → Providers. Add OpenAI and Anthropic/Claude. If Minis offers a “sign in” / OAuth flow, use that first. It is friendlier than juggling raw keys like a caffeinated sysadmin.
- Add OpenAI provider.
- Add Anthropic/Claude provider.
- Pick a default primary model.
- Send one boring test message before getting clever.
3. When you really need API credentials
Use API keys when Minis or an MCP/tool integration explicitly asks for them, or when you want predictable direct model calls independent of subscription UI limits.
API-key fallback steps
1OpenAI API key
- Go to platform.openai.com.
- Add billing / credits and set usage limits.
- Create an API key.
- Paste it only into Minis Provider settings or Environment Variables.
2Anthropic API key
- Go to console.anthropic.com.
- Add billing / credits and set usage limits.
- Create an API key.
- Paste it only into Minis Provider settings or Environment Variables.
Recommended first setup
ChatGPT Plus or Pro
Best clean on-ramp to OpenAI-hosted agents.
Claude Pro
Keep using Claude for the work it is already good at.
Minis provider logins
Connect accounts in Settings → Providers.
API keys later
Only when a tool or workflow needs them.
4. First-run checklist
- Send a normal Minis message and confirm the provider/model replies.
- Ask Minis to summarize a web page.
- Attach a PDF or image and ask for extraction/analysis.
- Open Settings → Memory if you want durable preferences.
- Review privacy/permissions before granting Apple access.
- Set provider spending limits before experimenting with API keys.
Copy/paste test prompts
Use these as quick sanity checks after connecting accounts. Each prompt is intentionally separate so you can copy only the one you need.
Now the fun shit
Once accounts work, Minis gets interesting because it can do things around the chat, not just inside it.
Reusable playbooks. Think “teach Minis how I like this task done,” then reuse it later. Great for recurring writing formats, research workflows, PDF handling, deployment steps, and household rituals masquerading as productivity.
Connect Minis to external tools and data sources through the Model Context Protocol. Filesystems, databases, home servers, project tools, knowledge stores — if it has an MCP bridge, Minis can potentially use it.
Minis can use iOS-native powers: reminders, calendar, maps, weather, health data, clipboard, notifications, speech, photos, vision/OCR, and more — with your permission, obviously. We are not building Skynet before lunch.
Ask for a dashboard, guide, table, timeline, or “make this look nice,” and Minis can generate a tappable HTML artifact instead of dumping a wall of text into chat.
Behind the scenes, Minis has a real Linux shell. It can fetch data, run Python, process files, transform CSVs, inspect PDFs, generate charts, and generally be useful in ways plain chat apps cannot.
It can browse, inspect pages, extract readable content, and help with current research. Especially useful because AI/software advice goes stale faster than milk in a sauna.
Beginner-friendly Skill ideas
- “Create a reusable skill for how I write client briefs.”
- “Use my research-writing skill on this topic.”
- “Make this recurring task into a checklist/skill.”
- “Before answering, search memory for what I already decided.”
MCP ideas that are actually useful
- Personal file search across a project folder.
- Home server / media server status.
- Knowledge base or notes vault lookup.
- Issue tracker / docs / database connection.
Security rules, blessedly short
Passwords and keys
Use provider login flows, Settings → Providers, or Environment Variables. Never paste keys into chat.
Spending limits
Subscriptions are predictable. API keys are metered. Add billing caps/alerts before letting agents roam.
Apple permissions
Calendar, reminders, photos, health, location, etc. are powerful. Say yes when useful, not because a dialog appeared.