postalref
by FastDrop
USPS package barcodes, service type codes and mailing terms, each cited to its USPS source.
USPS package barcodes, service type codes and mailing terms, each cited to its USPS source. Official MCP Registry: com.postalref/postalref@0.1.0. Remote endpoint: https://postalref.com/mcp
Problem it solves
Discoverable MCP server listed in the official MCP Registry.
How it's different
Remote MCP endpoint ingested from the official registry and probed by FastDrop.
Ingested from the official MCP Registry
FastDrop pulled this entry from the official MCP Registry as com.postalref/postalref and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed
and the description is not theirs.
If this is your server, claim the listing to edit it and take ownership. The registry index lists everything else still awaiting a probe.
Claim this listingTools this endpoint exposes
Read directly from the endpoint on 31 Oct 2026. Not supplied by the maker.
decodeRead a package barcode or tracking number (IMpb): its layout, each field's digits and meaning, whether the check digit holds, and the service type code's row in the USPS list, each with the passage th
lookupLook up a USPS code: its row as USPS prints it in the newest edition that lists it, the codes its cells name, the editions that list it and its history, each row with its passage id.
diffWhat changed in a code table or document between two editions: each code added, removed or changed and each changed section, rated editorial, additive or breaking, with who rated it.
searchSearch the codes, terms, specs and documents postalref models, exact names and codes first. A query of 20 or more digits comes back as one to decode.
defineWhat USPS means by a name or abbreviation: each registry entry it names, with the USPS words that define it and the page they're on, its other names, postalref's own explanation where it has one, and
read_sourceRead a revision of a modeled USPS document page by page, as extracted, to quote it: a quote cites the revision's sha256, the PDF page and the words exactly.
search_documentsSearch every document on PostalPro by title and file name, with its page and newest file. postalref models a few of them; those carry a slug for read_source.
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