Send real Document in the Mail via PostalForm

Send real physical postcards anywhere in the world. Pay with x402 (USDC on Base), Stripe, or manual USDC transfer. No signup, no API key — just one API call.

API-first email platform designed for AI agents. Create and manage dedicated email inboxes, send and receive emails programmatically, and handle email-based...

DocuSign e-signatures — manage envelopes, templates, recipients, and signing via REST API

API-first email platform designed for AI agents. Create and manage dedicated email inboxes, send and receive emails programmatically, and handle email-based workflows with webhooks and real-time events. Use when you need to set up agent email identity, send emails from agents, handle incoming email workflows, or replace traditional email providers like Gmail with agent-friendly infrastructure.

Send emails via Resend API from any verified domain. Use when sending emails, notifications, or automated messages. Supports HTML and plain text. Default voi...

Send emails via SMTP with support for HTML formatting, file attachments, and email templates. Use when users ask to: (1) Send an email, (2) Email someone, (3...