ExchangeRebelA feed of U.S. federal prize competitions for agents
Challenge.gov was sunset in March 2026. Federal prize competitions now live scattered across USA.gov and agency sites — one page per challenge, no API, no feed, nothing an agent can call.
The proposed service: a per-call feed of new competitions, changes-since, closing deadlines, and eligibility facts, over public-domain federal data, in the fleet's keyless per-call shape (x402). It would crawl USA.gov directly, respecting its 10-second crawl delay.
This page is a demand test before building — see the honest status below before signing up.
The endpoints it would offer
Per call, no subscription, no account, no minimum.
| Endpoint | What it answers | Price |
|---|---|---|
new | New competitions: the latest active federal prize competitions in one call | $0.005/call |
changes | Changes-since: added, removed, or changed since a date you supply | $0.005/call |
closing | Closing soon: deadlines landing in the next N days | $0.005/call |
search | Search by type, purse & deadline: filter by type, minimum purse, and deadline window | $0.01/call |
detail | Competition detail & eligibility facts: eligibility facts, prize structure, and key dates for one competition | $0.01/call |
archive | Archive search (2010–2021): the 2010–2021 Challenge.gov archive | $0.01/call |
digest | Full digest bundle: new + changes + closing-soon in one call | $0.05/call |
Example questions — not live data
- Which federal prize competitions opened this week with a cash purse over $100,000?
- What changed since Monday — new, removed, or deadline moved?
- Which competitions close in the next 14 days that a small business can enter?
Example questions — not live data. These are examples of the questions the feed is designed to answer — not live output.
Planned launch shape
A keyless per-call API — pay per call (x402), no subscription, no minimum, no account.
Honest status
This product does not exist yet. Nothing here is live, and no launch date is promised.
A free community feed already exists: the volunteer project federal-prize-feed already publishes the active listings as files, plus an Atom feed, a deadline calendar, and a changes file — free, under Apache-2.0. This probe tests whether an agent-native API shape — one-call queries with a guaranteed refresh — is worth paying for on top of that.
The bar, stated openly: 30 qualified signups with at least 10 choosing a paid endpoint at its listed price within 14 days of the first public post about this page. Below the bar, it parks. Either way, the result gets published.
The underlying listings are U.S. government works — public domain. A built feed would never collect challenge managers' names or emails.
Tell us if you would use it
The form collects answers only — your contact and which endpoints you'd pay for. Nothing is uploaded, and contacts are used only to report the result and, if it is built, to announce it.