Inflation rate by country API: World Bank consumer prices

$0.01 per call · failed calls are never charged · no account or API key needed

Inflation rate of any country: annual % change in consumer prices (CPI) from World Bank data, for the last 1-10 years with the newest year first. Country by ISO code (SE, SWE) or English name. Read from a committed World Bank Open Data snapshot (CC BY 4.0), so every call answers at once; the snapshot date is in the answer. Use for real-return, pricing and macro questions.

When to use it

Get a country's annual consumer-price inflation for the last 1-10 years
Deflate prices or returns with the official CPI change
Compare inflation across countries by ISO code or name

Run it free (25 free calls) Buy credits by card (from $5) Example result (JSON)

Inputs

Name	Type	Description
`country` (required)	string	ISO 3166 code (SE, SWE) or English country name (Sweden)
`years`	integer	Years of history to return, 1-10 (default 5)

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/econ/inflation?country=SE"

Or one of your 25 free calls, no key:

curl "https://agent-data-tools.revmesh2074.workers.dev/econ/inflation?country=SE&trial=1"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum, Monad, World Chain or Tempo) and retries.

Example result

{
  "country": {
    "code": "SWE",
    "name": "Sweden",
    "iso2": "SE",
    "region": "Europe & Central Asia",
    "incomeLevel": "High income",
    "capital": "Stockholm"
  },
  "inflation": {
    "indicator": "Inflation, consumer prices (annual %)",
    "latest": {
      "year": 2025,
      "value": 0.68
    },
    "values": [
      {
        "year": 2025,
        "value": 0.68
      },
      {
        "year": 2024,
        "value": 2.84
      }
    ]
  },
  "source": "World Bank Open Data (CC BY 4.0), snapshot 2026-10-22"
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is econ_inflation, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

Questions

Where does the data come from?

A committed snapshot of World Bank Open Data (CC BY 4.0); the snapshot date is in every answer.

Is it monthly?

No. The series is the World Bank's annual % change in consumer prices.

How do I pay?

Each successful call costs $0.01; failed calls are not charged. The first 25 calls are free. Then pay with card credits (from $5) or per call in USDC over x402 or MPP. No account or API key is needed.