Merx APImerx.com ↗

Search for open tender solicitations/RFPs on Merx with keyword, category, location, publish-date and closing-date filters. One round-trip per page; 25 results per page. Note that the site's 'open' list also contains notices whose closing date has already passed; use closing_date_from (for example today's date) to keep only solicitations still accepting bids. Without a date filter, results are the site's relevance ordering. When publish_date_from and/or publish_date_to is given, the site is asked for publication-date-newest-first ordering and the page's rows are filtered locally to the inclusive date range (the site itself offers no exact date-range filter): a page can therefore hold fewer than 25 matching rows or none while later pages still match, and callers should page until has_more is false. When only closing_date_from is given, the site is asked for closing-date-latest-first ordering and rows closing before that date are dropped locally, with the same paging semantics (has_more turns false as soon as the page's earliest closing date predates closing_date_from). When closing_date_from is combined with a publish date range, publication-date ordering is used and the closing-date floor is applied locally to every page without an early stop. has_more is true while a further page may still contain results. total_count is the site's total match count for the keyword/category/location/publish_date filters and never reflects the date filters (null when the site shows no count). Each result carries an internal_id usable with get_solicitation_detail and get_solicitation_categories; reference_number and internal_id are both the site's numeric notice ID. Each result's location is the notice's own delivery region(s) as shown by the site ('Canada' for nationwide notices; several regions are joined with '; '); a province location filter also returns nationwide notices because the site treats them as matching every province. public_notice is true when the notice is viewable without an account (detail and categories lookups succeed) and false for subscription-only solicitations, whose detail lookup returns a not-found error. An empty results array for a page beyond the last page or a filter combination with no matches is a valid empty result. Dates in results are strings in YYYY/MM/DD form. A malformed date, or publish_date_from later than publish_date_to, yields a stale_input error.

{
  "type": "object",
  "fields": {
    "page": "integer current page number",
    "results": "array of solicitation summaries: title, organization, location (string delivery region(s) as shown by the site, 'Canada' for nationwide notices, several regions joined with '; '), reference_number, internal_id (string numeric notice ID), url, public_notice (boolean, anonymously viewable), published_date, closing_date",
    "has_more": "boolean, true while a further page may still contain results",
    "total_count": "integer total number of matching solicitations for the site-side filters (excludes the date filters), or null when the site shows no count"
  },
  "sample": {
    "data": {
      "page": 1,
      "results": [
        {
          "url": "https://www.merx.com/public/supplier/interception/view-notice/22785013742?origin=0",
          "title": "EB144-270536 - ITT - Lead Dust Abatement - Cape Scott",
          "location": "Nova Scotia, CAN",
          "internal_id": "22785013742",
          "closing_date": "2026/10/01",
          "organization": "Department of Public Works and Government Services (PSPC)",
          "public_notice": true,
          "published_date": "2026/09/14",
          "reference_number": "22785013742"
        }
      ],
      "has_more": true,
      "total_count": 113
    },
    "status": "success"
  }
}