API · /inflation-api

Inflation Calculator API

healthy 3,900 Subscribers

Inflation-economics maths as an API, computed locally and deterministically. The adjust endpoint expresses a value across time in two ways — by an annual inflation rate over a number of years, V = amount·(1+r)^years, or by a ratio of consumer-price-index figures, V = amount·CPI_end/CPI_start — so an old price can be restated in today's money, with the total inflation over the period. The real-rate endpoint computes the real (inflation-adjusted) interest or investment rate from a nominal rate and an inflation rate using the Fisher equation, 1 + real = (1 + nominal)/(1 + inflation), alongside the rough nominal-minus-inflation approximation. The purchasing-power endpoint shows how inflation erodes money over time — the future buying power of today's amount, amount/(1+r)^years, the value lost and the larger amount needed to maintain the same purchasing power. Rates may be entered as a percent or a fraction and amounts in any currency. Everything is computed locally and deterministically, so it is instant and private. Ideal for personal-finance, budgeting, salary, retirement-planning and economics app developers, cost-of-living and real-return tools, and finance education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is inflation adjustment; for loan repayments use a loan API and for investment growth an investment API.

#inflation #cpi #real-rate #purchasing-power #finance #developer-tools

api.oanor.com/inflation-api

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Machine-readable spec so AI agents can integrate this API.

/api/inflation-api/openapi.json

/api/inflation-api/llms.txt

Discovery: GET /api/index.json lists every API.

Inflation Calculator API — live data on the oanor API marketplace

API health

healthy

Uptime: 100.00%; Server probes · 24h
Avg latency: 76 ms; Server probes · 24h
Subscribers: 3,900; active
Total calls: 76; last 7 days

Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

2,800 calls / month
2 requests / second
Hard cap (429 above quota, no overage)
2,800 calls/month
2 req/sec
Adjust + real rate + purchasing power
No credit card

Starter

€13.00 /month

35,000 calls / month
6 requests / second
Hard cap (429 above quota, no overage)
35,000 calls/month
6 req/sec
CPI & annual-rate methods, Fisher
Email support

Pro

€34.00 /month

215,000 calls / month
15 requests / second
Hard cap (429 above quota, no overage)
215,000 calls/month
15 req/sec
Budgeting & retirement pipelines
Priority support

Mega

€99.00 /month

1,400,000 calls / month
40 requests / second
Hard cap (429 above quota, no overage)
1,400,000 calls/month
40 req/sec
Platform scale
Dedicated SLA

Built by

PremiumApi

Related APIs

Other APIs with overlapping tags.

Moldova Inflation & CPI API

Official consumer-price inflation for the Republic of Moldova — sourced live from the National Bureau of Statistics of Moldova via its public PxWeb statbank (tables PRE012600, PRE012200 and PRE012800). The cpi endpoint returns the latest reported month with headline year-on-year inflation and the month-on-month price change. The series endpoint returns the monthly history of year-on-year and month-on-month inflation, parameterised by the number of months. The groups endpoint breaks the latest month down across the major divisions — food goods, non-food goods and services — each with its year-on-year rate, showing where price pressure sits. The core endpoint returns Moldova's core-inflation measures, computed by excluding volatile components such as food, energy and regulated prices, each with year-on-year and month-on-month change — the gauges central banks watch for underlying trend. All figures are published directly by the statistics bureau, not modelled, and refreshed from source behind a short server-side cache with keep-warm. Ideal for macro and emerging-market dashboards, CIS and EU-candidate economics trackers, cost-of-living and monetary-policy tools, and fintech needing a clean structured inflation feed for a market the big aggregators rarely cover at monthly resolution. Live keyless upstream. 5 endpoints.

api.oanor.com/moldova-cpi-api

Åland Consumer Price Index API

Official consumer-price-index and inflation data for the Åland Islands — the autonomous, Swedish-speaking, euro-area region of Finland — sourced live from Statistics and Research Åland (ÅSUB), the regional statistics authority, via its public PxWeb API (table KO010). The overall endpoint returns the latest headline CPI level (index base 2025 = 100) together with month-on-month and year-on-year change. The series endpoint returns the full monthly history of the headline index with monthly and annual change, parameterised by the number of months. The divisions endpoint breaks the basket down across the thirteen COICOP groups — food, alcohol & tobacco, clothing, housing & utilities, furnishings, health, transport, communication, recreation & culture, education, restaurants & hotels, miscellaneous and personal care — each with its index level and annual change. The drivers endpoint ranks those same divisions by their annual impact in percentage points, showing exactly which categories are pushing Åland inflation up or down. Figures are published directly by ÅSUB, not modelled or estimated, and are refreshed from source. Ideal for macro and regional-economics dashboards, cost-of-living and salary tools, Nordic and euro-area inflation trackers, and fintech that needs a clean, structured CPI feed for a market the big aggregators ignore. Live keyless upstream, short server-side cache. 5 endpoints.

api.oanor.com/aland-stats-api

Mongolia Statistics API

Official Mongolian inflation statistics straight from the National Statistics Office of Mongolia (NSO) via its 1212.mn PxWeb open-data service — no key, read live. The cpi endpoint returns the headline national Consumer Price Index (Overall index, base 2023=100) for the latest month with the index level plus month-on-month and year-on-year inflation, computed from the official series. The cpi/series endpoint returns the historical monthly CPI index and year-on-year rate over the last N months, ready to chart. The cpi/groups endpoint breaks the latest CPI down across all thirteen COICOP groups (food, housing, transport and so on) with index and annual change for each. The cpi/annual endpoint gives the annual-average CPI and average inflation for every year on record. The meta endpoint documents the source. Live data from Mongolia NSO PxWeb, lightly cached. Live. 5 endpoints. This serves Mongolian national price statistics; for the tugrik exchange rate use an FX / central-bank API.

api.oanor.com/mongolia-stats-api

North Macedonia Statistics API

Official North Macedonian inflation statistics straight from the State Statistical Office (MAKStat) via its ASKdata-style PxWeb open-data service — no key, read live. The cpi endpoint returns the headline Consumer Price Index inflation for the latest month — the month-on-month and year-on-year percentage changes (ECOICOP version 2 classification) — derived from the official ratio table. The cpi/series endpoint returns the historical monthly MoM and YoY series over the last N months, ready to chart. The cpi/groups endpoint breaks the latest year-on-year inflation down across all thirteen COICOP main groups (food, housing, transport and so on). The cpi/group endpoint returns the full MoM and YoY history for any single COICOP group by its code. The meta endpoint documents the COICOP group codes and source. Live data from MAKStat PxWeb, lightly cached. Live. 5 endpoints. This serves North Macedonian national price statistics; for the denar exchange rate use an FX / central-bank API.

api.oanor.com/macedonia-stats-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Inflation Calculator API?

Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Inflation Calculator API with the x-oanor-key header. No credit card needed for the free tier.

What's the rate limit for Inflation Calculator API?

Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.

How much does Inflation Calculator API cost?

Inflation Calculator API has a free tier with 100 calls / month. Paid plans start at €13.00 / month with higher quotas and faster rate limits.

Can I cancel my subscription anytime?

Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.

Is Inflation Calculator API GDPR-compliant?

All requests to Inflation Calculator API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Inflation 3

Meta 1

Pick an endpoint from the list on the left to see its details and try it.

GET /v1/adjust

Inflation adjust

Playground

Parameters

Custom headers

Language: Client:

GET /v1/purchasing-power

Purchasing power

Playground

Parameters

Custom headers

Language: Client:

GET /v1/real-rate

Fisher real rate

Playground

Parameters

Custom headers

Language: Client:

GET /v1/meta

Spec

Playground

Custom headers

Language: Client:

Code snippets

curl https://api.oanor.com/inflation-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."

const res = await fetch("https://api.oanor.com/inflation-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();

$ch = curl_init("https://api.oanor.com/inflation-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);

import requests
r = requests.get(
    "https://api.oanor.com/inflation-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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Inflation Calculator API

API health

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Related APIs

Moldova Inflation & CPI API

Åland Consumer Price Index API

Mongolia Statistics API

North Macedonia Statistics API

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