
DocuPost
7.3#4 in direct mail automation softwareFrom $9.95 a monthFree planWebAPI
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| Fact | DocuPost | MailerBot |
|---|---|---|
| API | The Send Letter API is a POST endpoint at app.docupost.com/api/1.1/wf/sendletter authenticated with an account API token. | The REST API offers 50+ endpoints and supports JWT and API key authentication. |
| Integrations | Listed integrations are Zapier, Clio, FileVine, HubSpot, QuickBooks Online, Xero and Google Docs. | The integrations page describes an MCP server for Claude, ChatGPT, Cursor, and other MCP-compatible clients, authenticated through OAuth 2.1. |
| Security and compliance | DocuPost describes its letter service as HIPAA-compliant with a signed BAA. | Command lists SSO for Okta, Google, and Microsoft, an available HIPAA BAA, audit logs, and compliance exports. |
DocuPost suits individuals and organizations that need to send physical mail online, from occasional letters to bulk mailings. Its listed formats and integrations may suit businesses coordinating mail with other services.
MailerBot suits organizations that send personalized physical mail and want to manage contacts, campaigns, and delivery tracking through an API or dashboard. The site presents it for retail, nonprofits, home services, startups, and digital nomads.