Government bid data, cleaned and ready to use

What each bid includes

title, agency, description

As posted by the buying agency

state

Two-letter state where the work is, when the notice proves it

due_date

The real response deadline (ISO 8601, UTC)

source_url

Link to the official notice

naics_code, psc

Industry and product/service codes when the notice has them

set_aside

SDVOSB, 8(a), WOSB, HUBZone and other set-asides when listed

notice_type, solicitation_number

Solicitation type and the agency's own number

first_seen_at, updated_at

When Contrax first saw the bid and last refreshed it

Only open opportunities: award notices and empty placeholder listings are left out. Nothing is guessed. A field the notice doesn’t state is null.

The API

One JSON endpoint, GET /api/v1/feed, with your key in an Authorization header. OpenAPI spec: /openapi.json.

state

One or more codes, e.g. VA,NC

updated_since

Only bids new or changed since an ISO date

naics

NAICS prefixes, e.g. 2382,561720

set_aside

Set-aside text, e.g. SDVOSB

limit

Rows per page, 1–500 (default 100)

after

Paging: pass next_after from the previous page

Example (abridged)

curl -H "Authorization: Bearer $CONTRAX_KEY" \
  "https://www.contrax.company/api/v1/feed?state=RI&limit=1"

{
  "data": [{
    "id": 1234567,
    "title": "2026 Statewide Steel Repairs",
    "agency": "State of Rhode Island, Dept of Transportation",
    "state": "RI",
    "due_date": "2026-10-23T17:00:00.000Z",
    "notice_type": "RIDOT Construction Bid",
    "solicitation_number": "TCB27006870",
    "source_url": "https://webprocure.proactiscloud.com/…",
    "set_aside": null,
    "naics_code": null,
    "…": "…"
  }],
  "next_after": 1234567,
  "count": 1
}

The id shown is illustrative; the bid is a real Rhode Island DOT solicitation.

Plans

Monthly, cancel anytime. Your API key arrives by email right after checkout.

You’ll need a free Contrax account so we can attach your API key. Manage or cancel anytime from the billing link in your welcome email.