# WhatsApp AI on your phone, with no computer at all > Set it up from your phone, ask from your phone, and let the cloud do the rest. Circles links your WhatsApp with a code and gives the AI you already use the chats you choose. **To use AI on your personal WhatsApp from your phone, sign up for Circles in your phone's browser, link WhatsApp with a code, choose your chats, and ask Instinct right inside WhatsApp.** Claude can join from its apps that support custom connectors, and ChatGPT on the web, where your plan supports custom MCP connectors. Circles is hosted, so nothing runs on a laptop and nothing new goes on your phone. It starts with 14 days of Pro free, then Free, Starter $9.90 or Pro $29 a month. Source: https://usecircles.app/en/guides/whatsapp-ai-on-mobile ยท Updated 2026-10-31 ## A day with WhatsApp AI in your pocket An example day. The people and groups are invented; the questions are the kind people ask. 1. **7:40, before school**: "What do the kids need today? Check the class group and the parents' group." A busy evening of messages becomes three lines. 2. **11:15, between meetings**: "Find the PDF the accountant sent last month." The AI finds it in your chats and opens it. 3. **14:30, on the bus**: "What did Yossi say in his voice notes?" Hebrew and English voice notes arrive as text, so you read them instead of listening. 4. **18:05, in the car park**: Ask Instinct by voice note, inside WhatsApp: "did the electrician confirm tomorrow?". Hands busy, answer waiting. 5. **21:30, on the sofa**: "Reply to the committee that I can host on Sunday." Only in a chat you opened for sending, and only what you approved. ## Set it up from your phone 1. **Sign up in your browser**: Open usecircles.app on your phone and enter your WhatsApp number. The sign-in link arrives on WhatsApp. Tap it. 2. **Link with a code**: Circles shows a code. In WhatsApp, go to *Linked devices*, link a device, choose to link with a phone number, and type the code. No QR, no second screen. 3. **Choose your chats**: Hidden, read, or read and send, chat by chat. Sending stays off until you open a chat for it. 4. **Connect your AI**: Instinct: tap, then send the message Circles wrote for you in WhatsApp. That is all it takes to ask from your phone. Claude: add `https://app.usecircles.app/api/mcp` as a custom connector and approve; the [Claude guide](https://usecircles.app/en/agents/claude) lists the apps that support it. ChatGPT: add the same address on the web, where your plan or workspace supports custom MCP connectors. ## What runs in the cloud, and what you do once **Once:** linking your number and connecting your AI. Each is a single step. **Always running, in the cloud:** your linked-device session, history arriving in the background, voice notes turned into text, and the address your AI asks. Your laptop can stay shut. **Setup and sync are different things.** You can ask your first question as soon as your AI is connected. Older history keeps arriving behind the scenes, and a big account takes longer. Older files and media, from more than about 25 days before linking, are fetched from your phone when your AI asks for them, so your phone needs to be online at that moment. ## Instinct: ask from WhatsApp, on the fly Instinct lives in WhatsApp, so with Circles you ask about WhatsApp from WhatsApp. Send it a text or a voice note while you walk, and it answers from the chats you opened. Connecting takes one tap and a send, with no key to copy. [Connect Instinct](https://usecircles.app/en/agents/instinct). ## Questions that work well on a phone - "What did I miss in my groups since this morning?" - "Is anyone waiting for an answer from me?" - "What time did we agree for Friday, and where?" - "Find the photo of the parking permit someone sent." - "Summarise the voice notes in the family group in three lines." ## Your phone, your rules Your AI sees only the chats you open. Hidden chats do not exist for it. Sending has a daily cap across all your agents and is never retried automatically, and every request is in your activity log. Your WhatsApp connection runs through a dedicated IP address, shared with no other Circles customer. Separately, connections between your browser or AI client and Circles use encrypted HTTPS. [Connection details and limits](https://usecircles.app/en/security). ## Questions and answers ### Can I use AI on WhatsApp without a computer? Yes. With Circles you sign up in your phone's browser, link WhatsApp with a code typed on the same phone, and connect Instinct, which you ask inside WhatsApp. Circles runs in the cloud. ### Do I need to install an app? No new app for Circles. You use WhatsApp, your browser, and the AI app you already have. ### Does my phone have to stay online? Your phone keeps working as usual, and Circles holds its own linked-device session in the cloud, like WhatsApp Web does. To fetch older files and media, from more than about 25 days before linking, your phone needs to be online, because Circles retrieves them from it when your AI asks. ### Which AI apps work on the phone? Instinct works inside WhatsApp, so it is the sure way to ask from your phone. Claude works in its apps that support custom connectors, as its guide describes. ChatGPT supports custom MCP connectors on the web, where your plan or workspace allows them. ### Can the AI send messages from my phone? Only on Pro, only in chats you open for sending, within a daily cap, and never retried automatically. Free and Starter are read only. ## Sources Competitor facts as seen on 2026-10-31, on each vendor's own pages. Prices and plans change often in this category: check the vendor's page before you buy. - [Connecting Instinct, usecircles.app/en/agents/instinct](https://usecircles.app/en/agents/instinct) - [Connecting Claude, usecircles.app/en/agents/claude](https://usecircles.app/en/agents/claude) - [OpenAI: custom MCP servers in ChatGPT, developers.openai.com](https://developers.openai.com/api/docs/guides/custom-mcp-server) - [Circles pricing, usecircles.app/en/pricing](https://usecircles.app/en/pricing) ## Keep reading - [Instinct](https://usecircles.app/en/agents/instinct): Ask from WhatsApp, by text or voice note. - [Summarise WhatsApp groups](https://usecircles.app/en/use-cases/summarize-whatsapp-groups): Catch up on the groups you chose. - [Circles vs WhatSync](https://usecircles.app/en/compare/whatsync): Full history for $29 a month. - [Four lives, one WhatsApp](https://usecircles.app/en/case-studies): Case studies: four people and the WhatsApp jobs their AI takes off their hands. --- 14 days free. Link your number, pick the chats, then connect Instinct with one tap or Claude, ChatGPT and Codex with one address. Start: https://usecircles.app/start?lang=en