Fixer

aid: fixer
name: Fixer
description: >-
  Fixer is a lightweight JSON API for real-time and historical foreign exchange
  rates and currency conversion. Built on top of European Central Bank reference
  rates and 15+ additional data sources, Fixer supports 170+ world currencies and
  is delivered through the APILayer marketplace under a freemium subscription model.
url: https://fixer.io
specificationVersion: '0.20'
created: '2026-05-28'
modified: '2026-05-29'
x-source: public-apis/public-apis
x-category: Currency Exchange
x-type: company
x-tier: 3
x-tier-reason: bulk-registered-from-public-apis
x-parent: apilayer
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Currency Exchange
  - Foreign Exchange
  - FX
  - Forex
  - ECB
  - Conversion
  - Historical Rates
  - Time Series
  - Fluctuation
  - APILayer
  - Public APIs
apis:
  - aid: fixer:fixer-api
    name: Fixer API
    description: >-
      The Fixer REST API exposes six operations covering symbol discovery, real-time
      and historical rates, on-demand currency conversion, daily time-series, and
      fluctuation reporting. Authentication is via the APILayer `apikey` header.
    humanURL: https://fixer.io/documentation
    baseURL: https://api.apilayer.com/fixer
    tags:
      - Currency Exchange
      - Foreign Exchange
      - APILayer
    properties:
      - type: Documentation
        url: https://docs.apilayer.com/fixer/docs/api-documentation
      - type: APIReference
        url: https://apilayer.com/marketplace/fixer-api
      - type: Quickstart
        url: https://fixer.io/quickstart
      - type: Authentication
        url: https://docs.apilayer.com/fixer/docs/api-documentation
      - type: OpenAPI
        url: openapi/fixer-openapi.yml
      - type: JSONSchema
        url: json-schema/fixer-rates-schema.json
      - type: JSONSchema
        url: json-schema/fixer-symbols-schema.json
      - type: JSONSchema
        url: json-schema/fixer-convert-schema.json
      - type: JSONSchema
        url: json-schema/fixer-timeseries-schema.json
      - type: JSONSchema
        url: json-schema/fixer-fluctuation-schema.json
      - type: JSONSchema
        url: json-schema/fixer-error-schema.json
      - type: JSONStructure
        url: json-structure/fixer-rates-structure.json
      - type: JSONStructure
        url: json-structure/fixer-symbols-structure.json
      - type: JSONStructure
        url: json-structure/fixer-convert-structure.json
      - type: JSONStructure
        url: json-structure/fixer-timeseries-structure.json
      - type: JSONStructure
        url: json-structure/fixer-fluctuation-structure.json
      - type: JSON-LD
        url: json-ld/fixer-context.jsonld
      - type: Example
        url: examples/fixer-getsymbols-example.json
      - type: Example
        url: examples/fixer-getlatest-example.json
      - type: Example
        url: examples/fixer-gethistorical-example.json
      - type: Example
        url: examples/fixer-convertcurrency-example.json
      - type: Example
        url: examples/fixer-gettimeseries-example.json
      - type: Example
        url: examples/fixer-getfluctuation-example.json
      - type: RateLimits
        url: rate-limits/fixer-rate-limits.yml
      - type: Pricing
        url: plans/fixer-plans-pricing.yml
    operations:
      - method: GET
        endpoint: /symbols
        summary: List Supported Currency Symbols
      - method: GET
        endpoint: /latest
        summary: Get Latest Exchange Rates
      - method: GET
        endpoint: /{date}
        summary: Get Historical Exchange Rates
      - method: GET
        endpoint: /convert
        summary: Convert Currency Amount
      - method: GET
        endpoint: /timeseries
        summary: Get Time Series Exchange Rates
      - method: GET
        endpoint: /fluctuation
        summary: Get Fluctuation Data
common:
  - type: Website
    url: https://fixer.io
  - type: Documentation
    url: https://docs.apilayer.com/fixer/docs/api-documentation
  - type: APIReference
    url: https://apilayer.com/marketplace/fixer-api
  - type: Pricing
    url: https://fixer.io/product
  - type: SignUp
    url: https://apilayer.com/signup
  - type: Login
    url: https://apilayer.com/login
  - type: TermsOfService
    url: https://fixer.io/terms
  - type: PrivacyPolicy
    url: https://fixer.io/privacy
  - type: Support
    url: https://fixer.io/contact
  - type: Blog
    url: https://blog.apilayer.com/
  - type: GitHubOrganization
    url: https://github.com/apilayer
  - type: GitHubRepository
    url: https://github.com/apilayer/fixer
  - type: PublicAPIsListing
    url: https://github.com/public-apis/public-apis
  - type: SpectralRules
    url: rules/fixer-rules.yml
  - type: Vocabulary
    url: vocabulary/fixer-vocabulary.yml
  - type: NaftikoCapability
    url: capabilities/shared/fixer-shared.yaml
  - type: NaftikoCapability
    url: capabilities/currency-conversion.yaml
  - type: NaftikoCapability
    url: capabilities/treasury-reporting.yaml
  - type: NaftikoCapability
    url: capabilities/historical-rate-lookup.yaml
  - type: Plans
    url: plans/fixer-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/fixer-rate-limits.yml
  - type: FinOps
    url: finops/fixer-finops.yml
  - type: Features
    data:
      - name: 170+ World Currencies
        description: Coverage of fiat currencies, sourced from the European Central Bank and 15+ additional providers.
      - name: Real-Time Exchange Rates
        description: Latest rates with refresh cadence ranging from hourly (Free) to 60 seconds (Professional Plus, Enterprise).
      - name: Historical Exchange Rates
        description: End-of-day rates for any working day since 1999-01-04, available on every plan including Free.
      - name: Currency Conversion Endpoint
        description: On-demand conversion between any two currencies at real-time or historical rates.
      - name: Time Series Endpoint
        description: Daily rates between two arbitrary dates (max 365 days) for trend analysis.
      - name: Fluctuation Endpoint
        description: Start rate, end rate, absolute change, and percentage change for a chosen window.
      - name: HTTPS Encryption
        description: SSL-secured transport on Basic plan and above; Free is HTTP only.
      - name: Source Currency Switching
        description: Choose any of the 170+ symbols as the base currency on Basic plan and above.
      - name: APILayer Unified Auth
        description: One APILayer `apikey` works across Fixer and other APILayer marketplace APIs.
  - type: UseCases
    data:
      - name: E-Commerce Multi-Currency Pricing
        description: Convert prices into the shopper's local currency at checkout using /convert.
      - name: Treasury and Cash Reporting
        description: Daily mark-to-market of multi-currency balances using /timeseries and /fluctuation.
      - name: Travel and Fintech Apps
        description: Power in-app FX widgets, traveler wallets, and remittance quotes with /latest.
      - name: Accounting and Ledger Reconciliation
        description: Look up the official end-of-day rate for any historical transaction with /{date}.
      - name: Backtesting and Analytics
        description: Pull windowed rate history with /timeseries to feed quant or BI models.
      - name: Compliance and Audit Trails
        description: Reference an immutable ECB-sourced rate when auditing cross-border payments.
  - type: Integrations
    data:
      - name: APILayer Marketplace
        description: Fixer is distributed via the APILayer hub; signup, billing, and key management share the marketplace.
      - name: European Central Bank
        description: Primary upstream data source for daily reference exchange rates.
      - name: money.js
        description: Client-side JavaScript library historically paired with Fixer for browser-side conversion.
      - name: Currencylayer
        description: Sister APILayer product with similar FX surface; often used interchangeably or for redundancy.
      - name: Coinlayer
        description: Cryptocurrency exchange rate API on the same APILayer platform.
      - name: Currencyfreaks / Open Exchange Rates
        description: Competing FX APIs that consumers benchmark Fixer against.
  - type: Solutions
    data:
      - name: Free Plan
        description: 100 requests/month, hourly refresh, EUR base only, HTTP only. Best for prototyping.
      - name: Basic Plan
        description: 10,000 requests/month at $14.99/mo, HTTPS, source currency switching, /convert endpoint.
      - name: Professional Plan
        description: 100,000 requests/month at $59.99/mo, 10-minute refresh, /timeseries endpoint.
      - name: Professional Plus Plan
        description: 500,000 requests/month at $99.99/mo, 60-second refresh, /fluctuation endpoint.
      - name: Enterprise Plan
        description: Custom volume, 60-second refresh, dedicated account team and priority support.
maintainers:
  - FN: Kin Lane
    email: [email protected]