What you get#
Onekey exposes Treasury as 8 endpoints behind one API key: 8 endpoints return a list (data is an array). Every answer uses the same envelope (success, data, metadata, error), the cost is reported in metadata.credits_charged, and fields are mapped onto the unified schema so the code you write for Treasury also works for the rest of the government & public data category.
Endpoints#
| Endpoint | What it does | Parameters | Credits | Status |
|---|---|---|---|---|
auctions | US Treasury securities auctions (announced/completed). | size | 5 | stable |
avg_interest_rates | Average interest rates on US Treasury securities. | size | 5 | stable |
debt_to_penny | Total US public debt outstanding, daily. | size | 5 | stable |
exchange_rates | Treasury reporting rates of exchange (quarterly, per country-currency). | size | 5 | stable |
gold_reserve | US Treasury-owned gold reserve by facility. | size | 5 | stable |
interest_expense | Interest expense on the public debt by security type. | size | 5 | stable |
monthly_statement | Monthly Treasury Statement: receipts and outlays (table 1). | size | 5 | stable |
operating_cash_balance | Daily Treasury Statement: operating cash balance (TGA). | size | 5 | stable |
A * marks a required parameter. Each endpoint name links to its reference page with the full parameter table, caching window and a recorded response.
Make a request#
This calls treasury.auctions (5 credits, stable). Replace YOUR_API_KEY with your key; sign up, no card. 1,000 free credits cover the open-platform endpoints. Hard-to-reach platforms (X, TikTok, Instagram, Reddit, and others marked on their page) need a verified email and a purchased pack.
curl "https://api.onekey.dev/v1/treasury/auctions?size=5" \
-H "x-api-key: YOUR_API_KEY"Fields you get back#
These unified fields come back from Treasury, with the same names as on every other platform. The count is how many of its 8 mapped endpoints return the field; a field the source lacks is null, never missing. 17 platform-specific fields (ext.<name>) come on top, documented on each endpoint page.
| Field | Type | Endpoints |
|---|---|---|
entity.date | ISO 8601 date | 8 |
entity.name | string | 7 |
entity.category | string | 5 |
entity.createdAt | ISO 8601 date | 1 |
entity.id | string | 1 |
The full schema is in Unified schema.
Pricing#
Every Treasury endpoint costs 5 credits per call. Free when served from cache (0.2 credit for a cached response over 100 KB). Invalid, failed or not-found calls are not charged. See pricing for credit packs.