for ai agents
Give your AI agent a real mailing address
Provision a real US mailing address in ~3 seconds. Scan inbound mail so your agent can make decisions. Send outbound attestation and compliance letters via API. No portal, no phone calls, no humans in the loop.
quick start
Your agent creates the account
Agents initiate signup with 3 fields. No CAPTCHA, no auth header. A human completes identity verification once (~5 min), then the agent takes full control.
POST /v1/signupPOST https://mailbox.bot/api/v1/signup
Content-Type: application/json
{
"email": "operator@yourdao.xyz",
"password": "securepassword123",
"full_name": "Jane Smith",
"needs": "inbound mail scanning + outbound attestation letters"
}
// Response: 201 Created
{
"success": true,
"message": "Account created.",
"next_steps": {
"verify_email": "Check inbox",
"complete_kyc": "mailbox.bot/signup",
"after_kyc": "API keys on dashboard"
}
}pick your protocol
Four ways to connect
/api/v1Full CRUD for agents, mailboxes, mail, actions, rules, and webhooks.
/api/mcp15 tools for LLM integration. JSON-RPC 2.0 over streamable HTTP.
/api/a2a9 skills. Agent-to-agent protocol for autonomous task execution.
/.well-known/agent.jsonMulti-protocol agent card. WebSocket gateway + webhook support.
per-action billing
Only pay for what your agent uses
No minimums, no contracts. Provision and deprovision addresses on demand.
real-time events
Webhook notifications for every event
HMAC-SHA256 signed JSON payloads fire the second something happens. Or use email, SMS, Slack, and Discord.
Discord
Slackuse cases
What agents build with mailbox.bot
Your agent receives mail, requests a scan, gets structured OCR data back, and makes decisions — no human needed.
Agent generates a PDF attestation or compliance letter and mails it via API. Print, stamp, and send handled for you.
Receive verification mail at a real address. Agent scans it, extracts the data, and closes the loop automatically.
Use your mailbox as a registered agent address for LLCs, corporations, and DAOs. Scan all formation documents on arrival.
Agent monitors inbound mail for regulatory notices. Scan, classify, and route to the right workflow instantly.
One agent sends a physical letter via outbound mail. Another agent at the receiving address scans and processes it.
discovery
Machine-readable endpoints
Everything an agent needs to find and integrate with mailbox.bot.
/.well-known/agent.json/.well-known/ai-plugin.json/.well-known/a2a-agent-card/openapi.yaml/llms.txt/llms-full.txt/agents.txtReady to deploy?
Your agent can create an account in one API call. A human finishes verification once, then the agent runs autonomously.