Turn USPS Tracking into MCP tools

Give your AI agent USPS Tracking tools. Writ turns your USPS Tracking workflows into authenticated MCP tools your agent can call, taking real actions on your own account.

{
  "mcpServers": {
    "writ-usps": {
      "url": "https://api.usewrit.app/mcp/your-workspace",
      "headers": { "Authorization": "Bearer wt_8f2c...a91" }
    }
  }
}

Record the USPS Tracking task once, or describe it to an AI session, and Writ turns it into an MCP tool your agent can call, taking real actions on your own USPS Tracking account.

1. 1
   Record a USPS Tracking action once

   Open the recorder and look up a tracking number on USPS Tracking in a real browser. Writ captures the steps, login and 2FA included, into a workflow.

2. 2
   Publish it as an MCP tool

   One click exposes the workflow as an MCP tool with a typed input schema, alongside a REST endpoint. Your agent picks it by its description.

3. 3
   Call it from any MCP client

   Point Claude Desktop, Claude Code, Cursor, or any MCP client at your Writ server. The USPS Tracking tool acts on your own account and returns structured output.

Browse supported MCP clients, see what's possible on workflows, or search for another site. Free to start. See pricing.

Read-only website-to-MCP tools can summarize a USPS Tracking page, but they can't do anything on it. Writ turns the USPS Tracking workflows you build into MCP tools your agent calls to take real actions (search, extract, submit), authenticated, on your own USPS Tracking account.

Writ runs on your own accounts, with your own credentials and data, on sites you are authorized to use.

Each tool is a real USPS Tracking workflow with a typed input schema and structured output. Your agent picks the right one by its description.

Example tool schema

{
  "name": "usps.track",
  "description": "Return the latest scan and status for a tracking number.",
  "input_schema": {
    "type": "object",
    "properties": {
      "query": { "type": "string", "description": "What to look up on USPS Tracking." }
    },
    "required": ["query"]
  }
}

Copy the config into your client and authenticate with a wt_ key. Tools appear automatically.

{
  "mcpServers": {
    "writ-usps": {
      "url": "https://api.usewrit.app/mcp/your-workspace",
      "headers": { "Authorization": "Bearer wt_8f2c...a91" }
    }
  }
}

{
  "mcpServers": {
    "writ-usps": {
      "url": "https://api.usewrit.app/mcp/your-workspace",
      "headers": { "Authorization": "Bearer csk_3a90...f4d" }
    }
  }
}

USPS tracking pages are public; Writ renders them in real Chromium to capture the latest scan and status.

Use Writ to track shipments you are authorized to track and respect USPS Terms of Use.

Give your agent USPS Tracking tools

Build a workflow, publish it as an MCP tool, and call it from any MCP client. Get started free.