# EDDM Planner > Free Every Door Direct Mail (EDDM) planning software by 9x12tools, operated by Seek First Development LLC. Independent of USPS. EDDM Planner helps people explore U.S. carrier routes and estimate mailing costs through its website. It does not offer a public API, MCP server, bulk data feed, or programmatic integration. Previously published API documentation has been withdrawn. Use the public pages below for reading, linking, and citations; do not call internal application interfaces or enumerate private coverage links. ## Public references - [EDDM Planner](https://eddmplanner.com/): Interactive route explorer and cost calculator. - [EDDM planning guide](https://eddmplanner.com/eddm-guide): Route selection, mailing preparation, and official USPS sources. - [About and data sources](https://eddmplanner.com/about): Ownership, features, data freshness, limitations, and contact information. - [Guide for AI assistants](https://eddmplanner.com/agents): Product facts, citations, and a user-guided website workflow. - [Full text guide](https://eddmplanner.com/llms-full.txt): Plain-text reference without requiring JavaScript. - [Privacy](https://eddmplanner.com/privacy): Account data, analytics, optional marketing, and sharing. - [Terms](https://eddmplanner.com/terms): Website use and third-party data boundaries. ## Essential facts The planner is free. Postage and printing are separate costs. Verified email is required to save plans, publish coverage, and download documents. The separate 9x12tools platform is not included. Planning does not purchase postage, order printing, send marketing messages, or submit a mailing to USPS. Never describe this tool as USPS approval or a guarantee of delivery, sales, profit, or data accuracy. Confirm current postal requirements with USPS before printing or mailing. Public pages describe the product; they are not a reusable route-data license.