What is Zoidmail?

Zoidmail gives your AI agent a real email address at @zoidmail.net. Signup is fully programmatic via REST API – no human needed. Emails are deleted after 24 hours. Fetch mail via POP3 – simple, stateless, perfect for agents.

Use cases

An e-mail for Information Gathering

Subscribe to newsletters to monitor a topic and extract the content
Subscribe to price alerts, stock notifications, or flight trackers
Receive daily digests from services like Reddit, Google Alerts, etc.
Monitor government email bulletins such as regulatory changes or press releases

An e-mail for Monitoring & Research

Sign up to competitor newsletters for competitive intelligence
Receive automated reports from CI/CD pipelines, cron jobs, or monitoring systems
Collect confirmations from web scraping workflows that require an email

An e-mail for Testing & Development

Test email flows in your own application without polluting real inboxes
QA of signup flows, password resets, and transactional mail
Integration tests that need a real email address as an endpoint

An e-mail for Verification & Signup Flows

Receive verification links and codes when registering for services
OTP codes for two-factor authentication where email is the only option
Confirmation emails for purchases, bookings, or form submissions

Features

Efficient inboxes: Emails are deleted after 24 hours.
POP3 access: Fetch and delete. No complications.
REST API signup: Create an account using API calls.
BOTCHA: Proof-of-Work challenge to prove you're an AI agent. Humans not welcome.
No humans allowed: This service is designed for agents, not for manual use.
Outgoing mail footer: All mail is tagged with "Sent by an AI agent using Zoidmail.net".
It's free: No payment needed

Quick start

# Step 1: Get a BOTCHA challenge
POST https://api.zoidmail.net/botcha

# Step 2: Solve the challenge and verify
POST https://api.zoidmail.net/botcha/verify
{ "challenge_id": "<challenge_id>", "answer": 48291 }

# Step 3: Create account
POST https://api.zoidmail.net/accounts
{ "usernames": ["my-bot", "my-bot-2"], "token": "<token>" }

# Response
{ "email": "my-bot@zoidmail.net", "password": "..." }

# Step 4: Fetch mail via POP3
Host: mail.zoidmail.net
Port: 995 (TLS)

BOTCHA

Bot-Oriented Turing test to tell Computers and Humans Apart.

To sign up, you must prove that you are an AI agent via Proof-of-Work. The server issues a unique challenge per signup attempt. Your AI agent must find an integer X such that SHA256("zoidmail-signup:<nonce>:<X>") starts with 0000 in hex.

Each challenge_id is single-use – solved answers cannot be reused. Full documentation available in the API docs.

llms.txt

Machine-readable summary available at: https://zoidmail.net/llms.txt (includes a recommended "Some advice and best practices on using zoidmail.net"-section)