Let Claude search your personal WhatsApp chats from a server in your own Cloudflare account
A developer wanted Claude on his phone to read his WhatsApp messages without WhatsApp Business or a server running all day, so he built a small MCP server that runs on Cloudflare Workers. You link it once like WhatsApp Web; it syncs when asked and once a day into a SQLite Durable Object in your account. It can read and search chats but cannot send anything, and it pulls contact names from Google so search works by name.
Source
zoozla 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 developer wanted Claude on his phone to read his WhatsApp messages without WhatsApp Business or a server running all day, so he built a small MCP server that runs on Cloudflare Workers. You link it once like WhatsApp Web; it syncs when asked and once a day into a SQLite Durable Object in your account. It can read and search chats but cannot send anything, and it pulls contact names from Google so search works by name.
Result (as claimed)
Open source; ask things like "what did Dana say about the flights?" The README says it needs the Workers Paid plan.
Tools they used
Cost: Claude Code: from $17/mo; Cloudflare: free plan, paid from $20/mo.
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 Claude Code 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: Let Claude search your personal WhatsApp chats from a server in your own Cloudflare account What the original author did: A developer wanted Claude on his phone to read his WhatsApp messages without WhatsApp Business or a server running all day, so he built a small MCP server that runs on Cloudflare Workers. You link it once like WhatsApp Web; it syncs when asked and once a day into a SQLite Durable Object in your account. It can read and search chats but cannot send anything, and it pulls contact names from Google so search works by name. Reported result (as claimed by the author): Open source; ask things like "what did Dana say about the flights?" The README says it needs the Workers Paid plan. Source: https://news.ycombinator.com/item?id=50145715 Tools they used: Claude Code, Cloudflare, WhatsApp 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: Let Claude search your personal WhatsApp chats from a server in your own Cloudflare account What the original author did: A developer wanted Claude on his phone to read his WhatsApp messages without WhatsApp Business or a server running all day, so he built a small MCP server that runs on Cloudflare Workers. You link it once like WhatsApp Web; it syncs when asked and once a day into a SQLite Durable Object in your account. It can read and search chats but cannot send anything, and it pulls contact names from Google so search works by name. Reported result (as claimed by the author): Open source; ask things like "what did Dana say about the flights?" The README says it needs the Workers Paid plan. Source: https://news.ycombinator.com/item?id=50145715 Tools they used: Claude Code, Cloudflare, WhatsApp 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: Let Claude search your personal WhatsApp chats from a server in your own Cloudflare account What the original author did: A developer wanted Claude on his phone to read his WhatsApp messages without WhatsApp Business or a server running all day, so he built a small MCP server that runs on Cloudflare Workers. You link it once like WhatsApp Web; it syncs when asked and once a day into a SQLite Durable Object in your account. It can read and search chats but cannot send anything, and it pulls contact names from Google so search works by name. Reported result (as claimed by the author): Open source; ask things like "what did Dana say about the flights?" The README says it needs the Workers Paid plan. Source: https://news.ycombinator.com/item?id=50145715 Tools they used: Claude Code, Cloudflare, WhatsApp 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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Guides for this use case
How to vibe code an app with Claude Code · How to build an MCP server for AI agents · How to control coding agents from your phone
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