postalref

com.postalref/postalref · v0.1.0 · productivity

postalref is healthy: it completed an MCP handshake in 1886 ms and exposes 7 tools.

USPS package barcodes, service type codes and mailing terms, each cited to its USPS source.

Endpoint: https://postalref.com/mcp (streamable-http)

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Facts

Users (last 30 days)0
HandshakeHealthy
Auth neededNone
Tool count7
Latency1886 ms
Last checked (UTC)2026-10-31T19:30:26.423Z

Health history

Checked (UTC)StatusLatencyError
2026-10-31T19:30:26.423ZHealthy1886

Tools (7)

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 that says so.
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 postalref's page about it.
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.