All projects matching “usps”

Identify the courier behind a tracking number (UPS, FedEx, USPS, DHL Express, DPD, Royal Mail and other national posts) from its format, check the check digit where the carrier publishes one, and return the carrier's official tracking link. Several carriers can match the same pattern; each candidate says whether its check digit passed. It does not read live scan events (carriers serve them only th

Parse and normalize postal addresses into structured components. Returns address number, street, city, state, ZIP, and USPS-formatted output. Postal address parsing and normalization. Sub-second. x402-native.

Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.

Print and mail physical US letters (PDF, HTML, Markdown, DOCX, or image) and postcards via USPS, paid in USDC — with certified/registered proof options and standalone address verification at POST /v1/verify. Integration flow: POST /v1/documents to upload, POST /v1/quotes to lock a fixed USDC price for a recipient, then pay the returned per-quote x402 URL to create and mail the piece. Price is fixe

Multi-carrier package tracking. Live: FedEx, USPS, DHL. In rollout: UPS. Roadmap (returns 'coming soon' to log demand): Canada Post, La Poste, Royal Mail, Australia Post, Evri, Deutsche Post, PostNL, China Post, Japan Post, India Post, Correos, Poste Italiane, Aramex, Yodel, Swiss Post, Correios BR, EMS, OnTrac, Amazon Shipping. Pass tracking_number (and optional carrier='royal_mail' style slug).