PlateQuery MCP — US License Plate & Vehicle Information

com.platequery由 platequery.com 发布官方发布者v1.0.0更新于 Oct 24, 2026

License plate lookup for AI agents: plate messages and ALPR history via PlateQuery. OAuth 2.1.

已验证Streamable HTTP可网页运行位置与生活

概览

AI 生成的概览

远程 MCP 端点，让助手通过 PlateQuery 查询美国车牌与车辆信息，包括车牌留言和 ALPR 历史记录。

可以做什么
  • 查询美国车牌及与之关联的车辆信息。
  • 通过 PlateQuery 获取车牌留言与 ALPR（自动车牌识别）历史记录。
  • 清单中未列出具体工具，因此此处不说明确切的操作项。
适用场景
适用于助手需要在调查、核验或研究流程中把美国车牌解析为车辆信息，或查看 ALPR 历史记录的场景。
运行要求
使用位于 api.platequery.com 的远程 streamable HTTP 端点，无需本地软件包或运行时。需要 OAuth 认证（描述中为 OAuth 2.1），因此需要在该服务商处拥有账号。未声明任何环境变量或请求头。
安装前请注意
访问由 OAuth 控制，需使用 PlateQuery 账号登录并授权助手访问。车牌与 ALPR 数据属于个人及位置相关信息，查询前请考虑隐私、合法性依据与数据留存问题。服务商可能按用量计费，但输入中未说明价格。

安装

在 SourceWeft 中

  1. 打开 控制台中的 PlateQuery MCP — US License Plate & Vehicle Information，将其添加到工作区。
  2. 连接 所需的 凭据。它们会被私密存储，绝不会在公开页面上展示。
  3. 为需要使用其工具的对话启用该服务。

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。

交给智能体安装

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.platequery%2Fplate-api/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。

查看智能体所依据的安装指南

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。 客户端会在首次连接时完成 OAuth 登录。

{
  "mcpServers": {
    "platequery-us-license-plate-vehicle-info": {
      "type": "http",
      "url": "https://api.platequery.com/mcp"
    }
  }
}

README

PlateQuery MCP — US License Plate & Vehicle Information

License plate lookup for AI agents, built on PlateQuery — the license plate lookup site people use to notify vehicle owners, report bad driving, or flag illegal parking. This Model Context Protocol server lets an agent read those same messages for any U.S. license plate, plus public ALPR (automated license plate reader) sighting history from the Flock Safety camera network, by state or region.

This repository holds public documentation for the server. The implementation lives in PlateQuery's main application repository, which is closed-source.

Tools

ToolCostDescription
check_creditsFreeCheck your account's remaining credit balance. Doesn't count against the rate limit.
lookup_plate1 creditQuick summary for one plate: privacy status, the latest 3 messages (plus a total count), and a count of ALPR mentions, if any are public.
list_plate_messages1 creditFull, paginated list of messages posted about a plate.
list_plate_alpr_mentions1 creditFull, paginated ALPR search history for a plate, including the searching agency and source.
post_plate_messageFreePost a new message about a plate -- e.g. "reported for speeding" -- optionally with vehicle make/model/year/color and an approximate location. Requires the write scope. See Posting messages below.

A plate marked private by its owner returns zeroed messages/mentions to everyone except that owner. Free plan grants a starting credit balance on signup; additional credits are purchased in bulk packages — see api-settings for current pricing. Paid tools are rate-limited per account; call check_credits as often as you like to check balance without spending a credit.

Posting messages

post_plate_message is free but deliberately conservative, since it's the only tool that writes anything:

  • Requires a PlateQuery account with a confirmed email.
  • Rate-limited: 2 posts/minute, 10 posts/day, 3 posts/day about the same plate.
  • Not published immediately. Every post goes into the same moderation queue a website submission does -- it's invisible (and the plate's followers aren't notified) until a human moderator approves it.
  • vehicle_make/vehicle_model/vehicle_year/vehicle_color and location are all optional free text -- location should be an approximate description (e.g. "Hwy 37 near Los Altos, CA" or a cross-street), never precise GPS coordinates.

Authentication

The server is OAuth 2.1 only — no manual API keys. It supports PKCE and dynamic client registration (DCR), so a compliant MCP client (Claude, or any client following the MCP authorization spec) can connect by:

  1. Pointing at https://api.platequery.com/mcp.
  2. Following the WWW-Authenticate challenge to discover https://platequery.com as the authorization server (RFC 9728 protected resource metadata).
  3. Registering itself dynamically (RFC 7591) and running the standard Authorization Code + PKCE flow.
  4. Signing in with (or creating) a PlateQuery account when prompted.

No client secret or pre-issued API key is needed — sign-in happens in the browser the first time an agent connects.

Two scopes exist: read (the default -- covers every tool except post_plate_message) and write (required for post_plate_message, opt-in only). A client must explicitly request write at connect time to be able to post; an existing read-only connection can't post without reconnecting.

Adding it to an MCP client

Most MCP clients (including Claude) let you add a remote server by URL. Add https://api.platequery.com/mcp as a Streamable HTTP connector and follow the sign-in prompt on first use.

Support

Questions or issues: https://platequery.com/contact/

来源：README.md，提交 16d6af4

工具

0
该服务器需要登录，因此 SourceWeft 无法在没有账号的情况下读取其工具，也未收录。已连接账号所能看到的内容可能因账号及其权限而异。

版本历史

1
  1. v1.0.0最新Sep 16, 2026

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