Free Email Infrastructure for AI Agents
Create inboxes and receive emails with webhooks. Get pre-decoded JSON responses. Built for developers who want to go fast.
Create an inbox in one line
import Sendook from '@sendook/node';
const client = new Sendook('SENDOOK_API_KEY');
const inbox = await client.inbox.create();
Core Features
- One API call creates a functional inbox. No DNS setup required.
- Get instant notifications when emails arrive. No polling required.
- Every email arrives formatted as JSON. Attachments included.
Built for Speed
Simple APIs for sending, replying, and searching emails. Focus on building your product.
- Send emails and replies with one API call. Threading handled automatically.
- Every email is indexed and searchable. Query by sender, subject, date, or content.
- Built on proven email infrastructure. Spam filtering and deliverability included.
99.9% uptime
<100ms response
Complete Email API
Everything you need to handle email in your application. Simple APIs, webhook events, and JSON responses.
RESTful APIs
Create inboxes, send emails, search messages, and manage domains. Full programmatic control.
Webhook Events
Get notified for incoming emails, delivery status, bounces, and opens.
Thread Management
Automatic email threading and conversation tracking.
Attachment Handling
Attachments decoded and accessible via API. Images, PDFs, and documents.
Full-Text Search
Search emails by sender, recipient, subject, body, date range, or metadata.
Multiple Inboxes
Create unlimited inboxes per organization. Complete isolation between inboxes.
Custom Domains
Use your own domains. SPF, DKIM, and DMARC configuration handled automatically.
SDKs & Libraries
Official SDKs for Node.js, Python, and more. Type-safe and idiomatic.
Open Source
MIT licensed. Self-host or use our cloud.
Ready to give your AI agent email superpowers?
Join developers building the next generation of AI agents. Start sending and receiving emails in minutes, not days.