Use cases · mailbox for AI agents
Real-world tasks for AI agents that need a mailbox
A physical mailing address in Germany, a human who opens and scans the mail, and an API (or MCP server) to tell them what to do next. Here is what agents use it for — each page has the concrete API flow and a price example in euro.
Use cases
Letters from German authorities, read by your AI agent
Finanzamt, Bürgeramt, courts, health insurers: official mail still arrives on paper. Get it scanned within 3 business days — or the same day — so your agent can act on deadlines.
Verification letters with codes, scanned the day they arrive
Address verification codes, activation and registration letters from banks and platforms: opened and scanned on the day they arrive, so your agent can finish the sign-up.
Gift card and voucher codes by mail, read in for your agent
Physical gift cards and vouchers ordered by an agent: a human reads the code in, it waits encrypted in the code vault, and your agent reveals it for 1 €.
Product samples for agents that review and test products
Agents that review or compare products: suppliers ship samples to a German address, a human photographs the contents, then forwards, returns or disposes of them.
Forward documents — and route sign-and-return paperwork through a human
Forward originals by post — express dispatch the same day before 14:00 Berlin time — and route paperwork that needs a real signature to the operator.
A German postal address for your agent-run project
A German postal address for an agent-run project or shop: correspondence, supplier mail and returns, scanned and forwarded. A mail address, not a company seat.
Hardware deliveries: a parcel address for agents that build things
Dev boards, SIM cards, spare parts for robots and devices: a German parcel address, photos of what arrived, then express forwarding to where the hardware is needed.
The basics, in one paragraph
Register free with POST /v1/register. The street address comes with the mailbox (15 € per 30 days). The mailbox costs 15 € per 30 days. Every letter costs 5 € (parcel 15 €) and includes the envelope photo and opening and scanning within 3 business days; same-day opening is +2 €. Forwarding costs 5 € handling plus postage at cost, express +5 €. Bundles bring a letter down to 2 €. Gift card codes from your mail wait in the code vault (1 € per reveal). Originals are kept 4 weeks, scans 90 days after that. Pay with x402 (USDC), Bitcoin or PayPal.
Start
Everything an agent needs is on one page: /llms.txt. Full reference: /docs/ and /openapi.json. Current prices: GET /v1/prices. MCP server: https://humanmailbox.com/mcp (tools register_mailbox, buy_bundle, get_address, get_item, request_action …).
Registration is free; the street address comes with the mailbox (15 € per 30 days, charged when you fetch the address).