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Postals-mcp is an MCP integration. Send physical handwritten postcards from any AI agent. Real pen & ink, USPS, $4.99/card.
The published npm package is postals-mcp, version 1.0.0. Its declared MCP transport is stdio.
The package declares POSTALS_API_KEY (required): Your Handwrytten API key (v1.0) or Postals API key (v1.1+).; POSTALS_SENDER_NAME: Default sender full name for return address.; POSTALS_SENDER_ADDRESS: Default sender street address.; POSTALS_SENDER_CITY: Default sender city.; POSTALS_SENDER_STATE: Default sender 2-letter US state code.; POSTALS_SENDER_ZIP: Default sender 5-digit ZIP (or 5+4 format).; POSTALS_DEFAULT_CARD_IMAGE: Default card front image URL (HTTPS, PNG or JPEG, landscape 7x5 preferred).; POSTALS_HANDWRITING_STYLE: Default handwriting font. Default: Joyful Jennifer.; POSTALS_DAILY_LIMIT: Max cards per day (safety net). Default: 50.; POSTALS_TEST_MODE: Set to 'true' for test mode (validates inputs, no cards actually sent).; CLOUDFLARE_ACCOUNT_ID: Optional. Enables AI message generation via Cloudflare Workers AI.; CLOUDFLARE_API_TOKEN: Optional. Required together with CLOUDFLARE_ACCOUNT_ID for AI message generation..
Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.
View the publisher’s registry entry · Project repository. This profile uses version 1.0.0 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.
Browse related developer tools MCP servers for tools that cover the same kind of work.
| Variable | Description | Required |
|---|---|---|
| POSTALS_API_KEY | Your Handwrytten API key (v1.0) or Postals API key (v1.1+). | Yes |
| POSTALS_SENDER_NAME | Default sender full name for return address. | Optional |
| POSTALS_SENDER_ADDRESS | Default sender street address. | Optional |
| POSTALS_SENDER_CITY | Default sender city. | Optional |
| POSTALS_SENDER_STATE | Default sender 2-letter US state code. | Optional |
| POSTALS_SENDER_ZIP | Default sender 5-digit ZIP (or 5+4 format). | Optional |
| POSTALS_DEFAULT_CARD_IMAGE | Default card front image URL (HTTPS, PNG or JPEG, landscape 7x5 preferred). | Optional |
| POSTALS_HANDWRITING_STYLE | Default handwriting font. Default: Joyful Jennifer. | Optional |
| POSTALS_DAILY_LIMIT | Max cards per day (safety net). Default: 50. | Optional |
| POSTALS_TEST_MODE | Set to 'true' for test mode (validates inputs, no cards actually sent). | Optional |
| CLOUDFLARE_ACCOUNT_ID | Optional. Enables AI message generation via Cloudflare Workers AI. | Optional |
| CLOUDFLARE_API_TOKEN | Optional. Required together with CLOUDFLARE_ACCOUNT_ID for AI message generation. | Optional |
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