Docupost MCP server

Connect Docupost to Claude, ChatGPT, Cursor, Claude Code, Codex, Gemini, GitHub Copilot and any other MCP client, for your whole team. Metorial adds security, governance, and tracing, and gives everyone one Magic MCP URL to connect.

What you can do with the Docupost MCP server

Ask your agent in plain language. Each of these maps to a real tool on the server.

  • Use the get account balance tool in Docupost
  • Use the send postcard tool in Docupost
  • Use the send letter tool in Docupost

Supported Tools

get_account_balance

Get Account Balance

Request account balance information using the existing balance endpoint. This legacy endpoint is not described in the current public API guide; if unavailable, review Funds in the DocuPost dashboard before sending mail.

send_postcard

Send Postcard

Send a physical postcard via U.S. mail through DocuPost. Provide recipient and sender addresses along with front and back image URLs for the postcard. Supports 4x6 and 6x9 postcard sizes.

send_letter

Send Letter

Send a physical letter via U.S. mail through DocuPost. Provide recipient and sender addresses along with letter content as either a **PDF URL** or **raw HTML**. Supports options for color printing, double-sided printing, mail class, certified mail, and return envelopes.

Connect Docupost to your AI client

Every client uses the same Magic MCP URL, and so does any other MCP client. Add it once and sign in with SSO.

  1. Enable Docupost in Metorial. In your Metorial portal, enable the Docupost MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
  2. Add a custom connector. Open Customize, then Connectors. Select Add, then Custom, then Web.
  3. Paste your Metorial MCP URL. Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>) and continue.
  4. Sign in. Select Add and sign in to load Docupost tools.

Run Docupost through the Metorial gateway

One governed layer for every app your agents reach, not a separate connector per tool.

  • Give Docupost and every other app to your whole team through one MCP gateway, behind your SSO.
  • Scope which teams and agents can use Docupost tools with role-based access control, and trace every call.
  • Prefer to run it yourself? Metorial is open source and self-hostable.

More integrations teams use with Docupost

Notion

Create, read, update, and archive pages and databases in a Notion workspace. Manage blocks (paragraphs, lists, headings, embeds, etc.) within pages. Query databases with filters and sorts across rich property types including text, numbers, dates, selects, relations, and formulas. Search across pages and databases by title. Add and read comments on pages and blocks. Upload files to pages. Manage workspace users and retrieve user profiles.

Google Sheets

Create, read, and update spreadsheets and their cell data. Read and write values to individual cells, ranges, or multiple ranges using A1 notation or named ranges. Apply cell formatting including text styles, backgrounds, borders, number formats, and conditional formatting. Manage sheets (tabs) within a spreadsheet—add, delete, copy, rename, and reorder them. Create and manage embedded charts, pivot tables, filter views, data validation rules, protected ranges, named ranges, and merged cells. Perform batch operations to apply multiple updates atomically.

Slack

Slack: connect with bot OAuth or user OAuth to work with messages, conversations, search, files, Canvases, Lists, profiles, reactions, reminders, and workspace productivity settings.

Sharepoint

Manage SharePoint sites, document libraries, lists, and files. Create, read, update, and delete lists and list items with custom columns. Resolve site users to numeric Person/Group LookupId values. Upload, download, move, copy, and version files in document libraries. Search across sites, files, folders, lists, and list items using Microsoft Search. Manage permissions at site, list, and item levels with granular access control. Define and manage content types and site columns. Retrieve site properties and search for sites across Microsoft 365.

Microsoft Outlook

Send, read, reply to, forward, and manage email messages in user mailboxes. Organize messages into folders, apply categories, flags, and importance levels. Manage file and item attachments. Create, update, delete, and respond to calendar events and meetings. Find available meeting times, manage attendees, handle recurrence, and work with shared or delegated calendars. Create, read, update, and delete contacts, organize them into contact folders, and manage contact photos. Manage tasks and task lists via Microsoft To Do, including due dates, reminders, recurrence, and checklist items. Support for Focused Inbox, @-mentions, mail tips, send-on-behalf, and send-as capabilities.

Gmail

Send, read, and search email messages with support for recipients, attachments, and HTML content. Create, update, and send drafts. Manage conversation threads and organize messages with labels. Search mailboxes using Gmail query syntax (from, to, subject, date, attachment filters). Manage filters and vacation responders, update the primary address's display name and signature, and view send-as aliases, forwarding addresses, and auto-forwarding status. Import and insert messages for migration.

Technical notes for Docupost

Send letters from PDF URLs or HTML and postcards from images through U.S. mail. Request account balance information through the existing legacy endpoint. Review processing status and available cancellation options in the DocuPost dashboard.

Frequently asked questions

Common questions about connecting Docupost to AI agents with Metorial.

  1. How many tools does the Docupost MCP server have?
    The Docupost MCP server exposes 3 tools, including Get Account Balance, Send Postcard, Send Letter. Each one is governed and traced through Metorial.
  2. Docupost exposes tools your agents call on demand; it does not publish event triggers yet. Everything still runs through one governed MCP URL.
  3. Any MCP client, including VS Code, Windsurf, Zed, OpenCode and Grok. Each one reaches the Docupost MCP server through the same Metorial URL.
  4. Use role-based access control to decide which teams, users, and agents can use Docupost and which of its tools they can call.
  5. Yes. Metorial is open source, so you can run the Docupost MCP server yourself or use the hosted gateway.

Connect Docupost to production AI agents

See how Metorial gives your team governed access to Docupost, with tracing and security controls built in.