io.github.coopergwrenn/postals-mcp
Send physical handwritten postcards from any AI agent. Real pen & ink, USPS, $4.99/card.
Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.
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POSTALS_API_KEYYour Handwrytten API key (v1.0) or Postals API key (v1.1+).
POSTALS_SENDER_NAMEDefault sender full name for return address.
POSTALS_SENDER_ADDRESSDefault sender street address.
POSTALS_SENDER_CITYDefault sender city.
POSTALS_SENDER_STATEDefault sender 2-letter US state code.
POSTALS_SENDER_ZIPDefault sender 5-digit ZIP (or 5+4 format).
POSTALS_DEFAULT_CARD_IMAGEDefault card front image URL (HTTPS, PNG or JPEG, landscape 7x5 preferred).
POSTALS_HANDWRITING_STYLEDefault handwriting font. Default: Joyful Jennifer.
POSTALS_DAILY_LIMITMax cards per day (safety net). Default: 50.
POSTALS_TEST_MODESet to 'true' for test mode (validates inputs, no cards actually sent).
CLOUDFLARE_ACCOUNT_IDOptional. Enables AI message generation via Cloudflare Workers AI.
CLOUDFLARE_API_TOKENOptional. Required together with CLOUDFLARE_ACCOUNT_ID for AI message generation.
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