Every CSMS message, wherever you work

The 50 most recent messages, each labeled with its subject, urgency and whether it needs action, with a preview image. Updated every 15 minutes.

In Slack: /feed subscribe https://csmsbot.com/feed.xml. Outlook and Teams accept the address under RSS feeds. Prefer email? Get the Saturday digest.

GET https://csmsbot.com/api/messages returns the newest matching messages as JSON. It's free and open to any origin (CORS), cached for five minutes. Please keep it to a reasonable request rate.

curl "https://csmsbot.com/api/messages?q=section+232&action_required=true&limit=5"

Categories: system-maintenance (System Maintenance), system-update (System Update), policy-guidance (Policy Guidance), quota (Quota), tariff (Tariff), enforcement (Enforcement), pga-update (PGA Update), trade-program (Trade Program), deadline-reminder (Deadline), general-notice (General Notice)

Example response (the newest message right now, trimmed):

{
  "source": "U.S. Customs and Border Protection CSMS, via csmsbot.com",
  "count": 1,
  "results": [
    {
      "csms_number": "70430751",
      "title": "Softwood Lumber Assessment Rates Clarification",
      "date_issued": "2026-11-13T15:24:44+00:00",
      "url": "https://csmsbot.com/message/e8735f57-34d6-426e-bbce-ef3af95fea74",
      "category": "pga-update",
      "urgency": "low",
      "action_required": true,
      "programs_affected": [],
      "pgas_affected": [
        "USDA/AMS"
      ],
      "excerpt": "The Softwood Lumber Board (Board) administers a nationally coordinated program pursuant to the Softwood Lumber Research, Promotion, Consumer Education, and Indu…"
    }
  ]
}

Try it in your browser.

GET /api/timeline has every message since 2021 in compact parallel arrays (CSMS number, Eastern day offset from 2021-01-01, minute of day, row, urgency, action flag), plus each reviewed trade action with its date, legal authority and Federal Register or CSMS citation, and the periods each authority was in effect.

curl "https://csmsbot.com/api/timeline/window?from=2026-02-17&to=2026-03-06"

/api/timeline/window?from=&to= adds titles for up to 400 days at a time. The chart itself is at csmsbot.com/timeline.

csmsbot.com/csms/<number> opens any message by its CSMS number, for example csmsbot.com/csms/70381183. Message and digest pages carry share previews, and the sitemap lists them all.

csmsbot.com/llms.txt describes the site and API in the format AI assistants and agents read. Message pages are server-rendered with structured data, so assistants can cite them directly.

Use https://csmsbot.com/llms.txt to find CBP CSMS messages about <topic>. Cite each by CSMS number with a link to its csmsbot.com page.

Subject, urgency, action-required and affected-program labels are generated by AI and checked against a hand-labeled test set; the message text is CBP's. Check the text for anything that matters, and cite the CSMS number.