io.github.coopergwrenn/postals-mcp

Send physical handwritten postcards from any AI agent. Real pen & ink, USPS, $4.99/card.

What does this entry provide?

io.github.coopergwrenn/postals-mcp is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 67/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding io.github.coopergwrenn/postals-mcp to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 67/100
Install method: npm
Repo: coopergwrenn/postals-mcp
Repo updated: Apr 15, 2026

Install command

npx -y postals-mcp@1.0.0

Install method: npm

Review the upstream source before running this command.

GitHub project

Quality

Repo stars

Repo updated

Apr 15, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-04-15T22:55:02.852483Z",
      "publishedAt": "2026-04-15T22:55:02.852483Z",
      "statusChangedAt": "2026-04-15T22:55:02.852483Z"
    }
  },
  "server": {
    "name": "io.github.coopergwrenn/postals-mcp",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "1.0.0",
    "packages": [
      {
        "version": "1.0.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "postals-mcp",
        "registryType": "npm",
        "environmentVariables": [
          {
            "name": "POSTALS_API_KEY",
            "format": "string",
            "isSecret": true,
            "isRequired": true,
            "description": "Your Handwrytten API key (v1.0) or Postals API key (v1.1+)."
          },
          {
            "name": "POSTALS_SENDER_NAME",
            "format": "string",
            "description": "Default sender full name for return address."
          },
          {
            "name": "POSTALS_SENDER_ADDRESS",
            "format": "string",
            "description": "Default sender street address."
          },
          {
            "name": "POSTALS_SENDER_CITY",
            "format": "string",
            "description": "Default sender city."
          },
          {
            "name": "POSTALS_SENDER_STATE",
            "format": "string",
            "description": "Default sender 2-letter US state code."
          },
          {
            "name": "POSTALS_SENDER_ZIP",
            "format": "string",
            "description": "Default sender 5-digit ZIP (or 5+4 format)."
          },
          {
            "name": "POSTALS_DEFAULT_CARD_IMAGE",
            "format": "string",
            "description": "Default card front image URL (HTTPS, PNG or JPEG, landscape 7x5 preferred)."
          },
          {
            "name": "POSTALS_HANDWRITING_STYLE",
            "format": "string",
            "description": "Default handwriting font. Default: Joyful Jennifer."
          },
          {
            "name": "POSTALS_DAILY_LIMIT",
            "format": "string",
            "description": "Max cards per day (safety net). Default: 50."
          },
          {
            "name": "POSTALS_TEST_MODE",
            "format": "string",
            "description": "Set to 'true' for test mode (validates inputs, no cards actually sent)."
          },
          {
            "name": "CLOUDFLARE_ACCOUNT_ID",
            "format": "string",
            "description": "Optional. Enables AI message generation via Cloudflare Workers AI."
          },
          {
            "name": "CLOUDFLARE_API_TOKEN",
            "format": "string",
            "isSecret": true,
            "description": "Optional. Required together with CLOUDFLARE_ACCOUNT_ID for AI message generation."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/coopergwrenn/postals-mcp",
      "source": "github"
    },
    "description": "Send physical handwritten postcards from any AI agent. Real pen & ink, USPS, $4.99/card."
  }
}

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