The average interest rate the US Treasury currently pays on its outstanding debt, broken o
The average interest rate the US Treasury currently pays on its outstanding debt, broken out by security (Treasury Bills, Notes, Bonds, TIPS, FRNs, savings, and the marketable/total aggregates) for the latest reported month, in percent. No ticker needed. A read on the government's cost of borrowing that complements the /treasury-yields curve. Sourced from the US Treasury (FiscalData).
10000 (raw units)
price
5
calls / 30d
3
unique payers
2026-09-17
updated
Provider
x402stock.xyz · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {},
"type": "http"
},
"output": {
"example": {
"as_of": "2026-05-31T00:00:00.000Z",
"count": 16,
"rates": [
{
"avg_interest_rate": 3.69,
"security": "Treasury Bills",
"security_type": "Marketable"
},
{
"avg_interest_rate": 3.248,
"security": "Treasury Notes",
"security_type": "Marketable"
},
{
"avg_interest_rate": 3.413,
"security": "Treasury Bonds",
"security_type": "Marketable"
},
{
"avg_interest_rate": 3.386,
"security": "Total Marketable",
"security_type": "Marketable"
},
{
"avg_interest_rate": 3.353,
"security": "Total Interest-bearing Debt",
"security_type": "Interest-bearing Debt"
}
],
"record_date": "2026-05-31",
"series": "avg_interest_rates",
"source": "us_treasury",
"unit": "percent"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"as_of": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"count": {
"type": "number"
},
"rates": {
"items": {
"additionalProperties": false,
"properties": {
"avg_interest_rate": {
"anyOf": [
{
"type": "number"
},
{
"type": "null"
}
]
},
"security": {
"type": "string"
},
"security_type": {
"type": "string"
}
},
"required": [
"security_type",
"security",
"avg_interest_rate"
],
"type": "object"
},
"type": "array"
},
"record_date": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
]
},
"series": {
"type": "string"
},
"source": {
"const": "us_treasury",
"type": "string"
},
"unit": {
"type": "string"
}
},
"required": [
"source",
"as_of",
"series",
"unit",
"record_date",
"count",
"rates"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://x402stock.xyz/api/v1/avg-interest-rates" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://x402stock.xyz/api/v1/avg-interest-rates");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://x402stock.xyz/api/v1/avg-interest-rates")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/5251.json, and this resource appears in /discovery/resources and /discovery/search.