# fixerAPI/fixer

A foreign exchange rates and currency conversion API

Repository: https://github.com/fixerAPI/fixer
Canonical: https://ross.abutalabs.com/products/fixer
Homepage: http://fixer.io
Language: Ruby
License: MIT
License Family: permissive
Topics: foreign-exchange-rates, ruby, currencies, exchange-rate, historical-rates, money
Last push: 2022-09-03T06:58:57+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5034, "days_push": 1460, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2549, forks 193 (observed 2026-08-28T04:07:00.434322+00:00)

## What it is
Fixer is a hosted JSON API providing current and historical foreign exchange rates and currency conversion for 170 world currencies, including Bitcoin, gold, and silver. The legacy open-source-era endpoint (api.fixer.io) was deprecated in 2018 in favor of a re-engineered API at data.fixer.io that requires a free or paid access key.

## Use cases
- get latest exchange rates for 170 currencies
- convert an amount from one currency to another
- fetch historical end-of-day forex rates
- add currency conversion to an e-commerce checkout
- display multi-currency prices in an app
- track Bitcoin, gold, and silver rates

## When to choose
- you need reliable, frequently updated exchange rate data without hosting your own data pipeline
- you want a simple JSON API that can be integrated in minutes
- your volume fits the free tier (under 1,000 requests/month, EUR base) or a paid plan

## When to avoid
- you need more than 1,000 free requests per month or non-EUR base currencies without paying
- you require a fully self-hosted or open-source solution with no API key or quota
- you depend on the deprecated legacy api.fixer.io endpoint, which no longer works

## Facets
- artifact type: service
- maturity: maintenance
- function: api-framework, http-client
- domain: fintech, apis, e-commerce
- platform: cloud
- tags: currency-conversion, exchange-rates, forex, json-api, freemium, web-server

## Member repositories
- fixerAPI/fixer (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:00.434322+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:24:00.218283+00:00, confidence not recorded.
  - readme: https://github.com/fixerAPI/fixer (fetched 2026-08-28T04:07:00.434322+00:00, sha 82251d69d28d)
  - homepage: http://fixer.io (fetched 2026-08-29T10:06:39.510862+00:00, sha e021817e00a5)
  - site_page: https://fixer.io/billing-overages-documentation (fetched 2026-08-29T10:06:39.521725+00:00, sha 44a1b8d106f9)
  - site_page: https://fixer.io/faq (fetched 2026-08-29T10:06:39.519785+00:00, sha a3b9ec317a80)
- Data as of 2026-08-30T08:39:29.467469+00:00.