# Sovereign Debt Pressure Calculator

> Sovereign Debt Pressure Calculator is a paid API for AI agents from stat.halowerk.com, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-14).

Combines government debt ratio, budget balance, nominal GDP growth, and long-term bond yield into a composite debt pressure reading, centering analysis on the interest-rate-minus-growth-rate differential.

## Facts

- Endpoint: POST https://stat.halowerk.com/v1/sovereign-debt
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sovereign-debt-pressure-calculator-88490c33
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_11EVYJV_8Y9ZIfJBta9-_

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 sovereign-debt-pressure-calculator-88490c33 -d '<json body>'
```

Example prompt: What's the debt pressure reading for Italy right now — factor in the current bond yield, nominal GDP growth, budget balance, and debt ratio, and tell me whether the debt-to-GDP is on a self-correcting or worsening trajectory.

## When to prefer this

Choose this endpoint when you need more than a raw debt-to-GDP ratio — specifically when you want to understand whether the debt is on a self-sustaining trajectory given current interest rates and growth. Preferred over generic macro data endpoints when the question is about fiscal sustainability, debt dynamics, or sovereign creditworthiness, and when the interest-rate-growth differential is the analytic focus rather than just the level of debt.

## Known failure modes

- Missing or unavailable data for the requested country or time period returns an error
- Invalid or unrecognized country code returns a validation error
- Inconsistent or out-of-range input values (e.g., implausible bond yield) may return a data quality warning
- Network or payment authorization failure returns a 402 or 5xx error

## How this service works

Combines the general government debt ratio, the budget balance, nominal GDP growth and the long-term government bond yield into a debt pressure reading. The quantity that decides the trajectory is the differential between the interest rate and the nominal growth rate: below zero the debt ratio falls by itself even while running a deficit, above zero it rises even with a balanced budget, and reporting a debt ratio without that differential is the most common way public finances get read wrongly.

## Output

Returns a composite debt pressure reading that combines the government debt ratio, budget balance, nominal GDP growth, and long-term bond yield. The key output is the interest-rate-minus-nominal-growth-rate differential, which determines whether the debt ratio rises or falls on its own. Includes interpretation of trajectory: whether deficits can be run without increasing the debt burden, or whether even a balanced budget leaves debt growing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "years": {
   "type": "integer",
   "default": 8,
   "maximum": 20,
   "minimum": 2
  },
  "countries": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 2,
    "minLength": 2
   },
   "maxItems": 12,
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sovereign-debt-pressure-calculator-88490c33/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stat.halowerk.com](https://www.zero.xyz/host/stat.halowerk.com/llms.txt)