# US Treasury Auction Results & Calendar

> US Treasury Auction Results & Calendar is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Fetches recent US Treasury auction results by security type with computed signals (bid-to-cover trend, indirect-bidder share, average cover) plus the upcoming auction calendar from TreasuryDirect.

## Facts

- Endpoint: GET https://api.agentstools.dev/treasury/auctions
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/us-treasury-auction-results-calendar-4fa8f167
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rHhrQXVHWGAZy1DGK6vhc

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability us-treasury-auction-results-calendar-4fa8f167
```

Example prompt: Pull the last 90 days of 10-Year Note auction results from TreasuryDirect, including bid-to-cover trends and indirect-bidder share, and also include the upcoming auction calendar.

## When to prefer this

Use this endpoint when you need structured, signal-enriched US Treasury auction data with computed analytics (bid-to-cover trend, indirect-bidder share) normalized from TreasuryDirect. Prefer this over raw TreasuryDirect scraping when you need ready-to-use computed signals and CUSIP-cited records. It is the right choice for fixed-income market analysis, demand strength monitoring, and auction calendar lookups across all major Treasury security types.

## Known failure modes

- Invalid or unsupported security type enum value returns a 400-level error
- days parameter outside 1–3660 range is rejected by schema validation
- No auctions found for the specified type/term/days combination returns an empty list
- TreasuryDirect upstream unavailability may cause a 502 or timeout
- Malformed query parameters return schema validation errors

## How this service works

US Treasury auction results plus the upcoming calendar from TreasuryDirect. Returns a normalized list of recent auctions for a security type with computed signals: bid-to-cover trend, indirect-bidder share and average cover. Each auction is cited with its CUSIP, auction date and source.

## Output

A normalized list of recent Treasury auctions for the specified security type, each entry containing the CUSIP, auction date, bid-to-cover ratio, indirect-bidder share, and average cover. Also includes computed trend signals across auctions and, if requested, the upcoming TreasuryDirect auction calendar. Each record is cited with its source.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "type"
     ],
     "properties": {
      "days": {
       "type": "integer",
       "maximum": 3660,
       "minimum": 1,
       "description": "Look back this many days for auction results"
      },
      "term": {
       "type": "string",
       "description": "Optional exact security term filter, such as 10-Year"
      },
      "type": {
       "enum": [
        "Bill",
        "Note",
        "Bond",
        "TIPS",
        "FRN",
        "CMB"
       ],
       "type": "string",
       "description": "Security type to fetch auctions for"
      },
      "upcoming": {
       "type": "boolean",
       "description": "Also include the upcoming-auction calendar"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/us-treasury-auction-results-calendar-4fa8f167/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentstools.dev](https://www.zero.xyz/host/api.agentstools.dev/llms.txt)