# Market Intelligence API – US Treasury Auctions

> Market Intelligence API – US Treasury Auctions is a paid API for AI agents from api.marketintelligenceapi.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Returns upcoming and recent US Treasury auction data including high yield, bid-to-cover ratio, and indirect/dealer bidder shares with change vs prior auction.

## Facts

- Endpoint: GET https://api.marketintelligenceapi.com/api/v1/rates/auctions?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-intelligence-api-us-treasury-auctions-a0ccf320
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4MAi56rW70kWQEOryXcI_

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 market-intelligence-api-us-treasury-auctions-a0ccf320
```

Example prompt: Pull the latest US Treasury auction results for me — I want to see the high yield, bid-to-cover ratios, and indirect bidder shares for recent auctions, and flag any upcoming auctions on the calendar.

## When to prefer this

Choose this endpoint when you need structured, parsed US Treasury auction metrics (yield, bid-to-cover, bidder composition) in a single call without scraping TreasuryDirect or manually parsing auction announcements. It is especially useful for agents doing macro bond market analysis, monitoring demand trends across auction cycles, or building pre-trade context around Treasury supply events.

## Known failure modes

- No data available for a requested period — returns empty arrays
- Rate limit exceeded — HTTP 429 if call volume exceeds plan limits
- Payment failure — HTTP 402 if x402 payment is not processed correctly
- Stale data — auction calendar may lag official Treasury announcements by a short delay

## How this service works

US Treasury auctions results and calendar: upcoming and recent auctions with high yield, bid-to-cover, indirect and dealer shares, and the change vs the previous auction of the same security. Use to track Treasury supply and demand.

## Output

A JSON object with two arrays: 'recent' (completed auctions with auction date, security term, security type, high yield percent, bid-to-cover ratio, indirect bidders percent, and delta vs prior auction of the same security) and 'upcoming' (scheduled future auctions with date, term, and type).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "integer",
       "default": 14,
       "maximum": 60,
       "minimum": 1,
       "description": "Look-back period in days"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "description": "Example JSON response returned by this endpoint"
    }
   },
   "additionalProperties": true
  }
 },
 "additionalProperties": false
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "recent": [
   {
    "previous": {
     "bidToCover": 2.61,
     "highYieldPercent": 4.52
    },
    "bidToCover": 2.53,
    "auctionDate": "2026-08-12",
    "securityTerm": "10-Year",
    "securityType": "Note",
    "highYieldPercent": 4.683,
    "indirectBiddersPercent": 60.98
   }
  ],
  "upcoming": [
   {
    "auctionDate": "2026-09-29",
    "securityTerm": "52-Week",
    "securityType": "Bill"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-intelligence-api-us-treasury-auctions-a0ccf320/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.marketintelligenceapi.com](https://www.zero.xyz/host/api.marketintelligenceapi.com/llms.txt)