# Real Interest Rates by Economy (BIS Data)

> Real Interest Rates by Economy (BIS Data) is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-19).

Returns real interest rates (central bank policy rate minus year-on-year inflation) for ~40-48 economies, ranked, sourced from BIS data.

## Facts

- Endpoint: POST https://api.vextorium.com/v1/real-interest-rates?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/real-interest-rates-by-economy-bis-data-7fce262b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_m65N5qmOUwjb7UDNITYC5

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 real-interest-rates-by-economy-bis-data-7fce262b -d '<json body>'
```

Example prompt: Show me the current real interest rate rankings for all available economies — I want to see which countries have the most restrictive monetary policy and which ones are loose, so I can identify carry trade opportunities.

## When to prefer this

Choose this endpoint when you need a pre-computed, multi-economy real interest rate ranking derived from authoritative BIS data, rather than calculating it yourself from separate policy rate and inflation feeds. Ideal for FX carry trade screening, monetary policy comparison dashboards, and macro research covering ~48 economies simultaneously.

## Known failure modes

- Upstream BIS data not yet available for current month — data may lag by weeks
- Empty or partial ranking if fewer economies have reported inflation data
- HTTP 402 if payment via x402 protocol is not properly attached
- Stale data if BIS updates are delayed

## How this service works

Real interest rate of about 150 economies from the World Bank (bank lending rate adjusted by the GDP deflator), latest year available, ranked. Annual data.

## Output

A ranked JSON array of economies, each with country name, ISO country code, central bank official rate (%), year-on-year inflation (%), real interest rate (% = official rate minus inflation), and the reference month. Also includes a total country count and a note clarifying that positive real rates indicate restrictive policy and negative rates indicate loose policy. Source is BIS.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [],
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": [
      "object",
      "null"
     ],
     "properties": {
      "note": {
       "type": [
        "string",
        "null"
       ]
      },
      "source": {
       "type": [
        "string",
        "null"
       ]
      },
      "ranking": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": [
         "null",
         "object"
        ],
        "properties": {
         "name": {
          "type": [
           "string",
           "null"
          ]
         },
         "year": {
          "type": [
           "string",
           "null"
          ]
         },
         "country": {
          "type": [
           "string",
           "null"
          ]
         },
         "real_rate_pct": {
          "type": [
           "number",
           "null"
          ]
         }
        }
       }
      },
      "countries": {
       "type": [
        "number",
        "null"
       ]
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "World Bank definition: bank lending rate adjusted by the GDP deflator. Annual data.",
  "source": "Source: World Bank, World Development Indicators, CC BY 4.0 (https://datacatalog.worldbank.org/public-licenses#cc-by). Selected and reformatted by Vextorium.",
  "ranking": [
   {
    "name": "Iraq",
    "year": "2015",
    "country": "IRQ",
    "real_rate_pct": 57.63
   },
   {
    "name": "Madagascar",
    "year": "2025",
    "country": "MDG",
    "real_rate_pct": 47.63
   }
  ],
  "countries": 148
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/real-interest-rates-by-economy-bis-data-7fce262b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)