com.postalref由 postalref.com 发布官方发布者v0.2.0更新于 Nov 2, 2026
USPS package barcodes, service type codes and mailing terms, each cited to its USPS source.
回答 USPS 邮寄相关问题——包裹条码、服务类型代码、术语与 PostalPro 文件——每条答案都附 USPS 原文出处。
Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。
把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。
阅读 https://sourceweft.com/mcp/com.postalref%2Fpostalref/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。把它添加到你客户端的 mcpServers 配置中。
{
"mcpServers": {
"postalref": {
"type": "http",
"url": "https://postalref.com/mcp"
}
}
}Decode a barcode
Read 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.
barcode必填Look up a code
Look 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. A code is found without the marks USPS prints around it and in a row USPS prints for several codes: 750 finds *750, 858 finds 858 and the dropped 858**, and 13 finds PTR's row 01 / 13. Two digits are also tried as three: 55 finds PTR's 55, then STC's 055.
code必填tableCompare two editions
What 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.
tocodefromlimitsubject必填severitySearch codes and terms
Search the codes, terms, banner texts, specs and documents postalref models, by one index: names and codes whose key is the query's first, then those that start with it, then those with words that start with its words, then codes whose row has its words. A term hit carries its kind (mail-class, extra-service, service, program, system, file, identifier, document, facility, container, role or term) and its tier (core, or reference: only in Publication 32, the glossary of July 2013, with that date). A query of 20 or more digits comes back as one to decode.
limitquery必填Define a USPS term
What USPS means by a name or abbreviation: each registry entry it names, in the order search ranks them, with its kind and tier, 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.
name必填limitRead a USPS document
Read 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.
findpagepagesdocument必填revisionSearch PostalPro documents
Search 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.
limitquery必填topic已满足适用检查项的 72%
该评分衡量此收录条目的完整程度，依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价，也不表示服务器安全或当前可用：可连通性是带日期的检查结果，评分也不包含安装量或用户评价。
请在注册中心条目中发布图标。
请声明包含 README 的 GitHub 仓库，或在 OAuth 受保护资源元数据中提供 resource_documentation。
托管服务按其提供方的条款使用，因此这里不要求许可证。此检查项不计入百分比。