2025 DATA NOW AVAILABLE

Corruption Perceptions Index API

Free, open REST API serving CPI 2025 scores for 180 countries. Look up any country by ISO code, filter by region, or get global rankings.

API Docs Browse Data

0 — Highly Corrupt 100 — Very Clean

What is the CPI?

The Corruption Perceptions Index (CPI) is published annually by Transparency International. It ranks 180 countries and territories by their perceived levels of public sector corruption on a scale of 0 (highly corrupt) to 100 (very clean).

The index draws on 13 data sources from 12 independent institutions, including the World Bank, World Economic Forum, and private risk assessors. It is the most widely used indicator of corruption worldwide.

In 2025, Denmark ranks highest with a score of 89, while Somalia and South Sudan share the lowest score at 9. The global average remains at 43, unchanged for over a decade — a sign that most countries are making little to no progress in tackling corruption.

API Endpoints

GET /countries All countries with optional filters

GET /countries/{code} Lookup by ISO2 or ISO3 code

GET /regions Region summaries with averages

GET /regions/{region} Countries in a specific region

GET /rankings Global ranking with sort & limit

GET /health Service health check

Quick Start

				# Get a country by ISO code

      curl https://api.corruptionindex.in/countries/US

				# Top 10 least corrupt countries

      curl https://api.corruptionindex.in/rankings?order=desc&limit=10

				# All Asia-Pacific countries scoring above 70

      curl https://api.corruptionindex.in/countries?region=AP&min_score=70

				# JavaScript fetch

				const res = await
				fetch("https://api.corruptionindex.in/countries/DE");

				const data = await res.json();

      console.log(data.cpi_score); // 77

Corruption Perceptions Index API

What is the CPI?

Regions Covered

API Endpoints

Quick Start