Currencylayer

Currencylayer is a real-time and historical foreign exchange rate JSON API delivering bank-grade exchange rate data for 168 world currencies and precious metals, sourced from 15+ commercial-grade providers. The service is delivered through the APILayer marketplace under a freemium subscription model with refresh cadence ranging from hourly on Free up to 60 seconds on Enterprise tiers.

Currencylayer publishes 5 API contracts indexed on the APIs.io network, including Change API, Conversion API, Rates API, and 2 more. Tagged areas include Foreign Exchange, Conversion, Historical Rates, Time Frame, and Change Report.

The Currencylayer catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Currencylayer’s developer surface includes authentication, documentation, API reference, pricing, signup flow, support, engineering blog, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

57.0/100 strong ▬ flat Agent 24/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 10 Features 7 Use Cases

Foreign Exchange Conversion Historical Rates Time FrameChange ReportPrecious Metals APILayer Public APIs

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Data & Reference Information Services

AE-230

ChangeConversionRatesTime Frame

GET /live GET /historical GET /change GET /timeframe

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 57.0/100 · strong

Contract Quality 13.9 / 21

Developer Ergonomics 10.9 / 17

Access Clarity 13.2 / 17

Operational Transparency 0.3 / 11

Contract Governance 2.8 / 10

Discoverability 6.2 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

5 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Operational Transparency scores 2.6 — up to +12.7 composite points
Contract Quality scores 65.3 — up to +8.7 composite points
Contract Governance scores 27.3 — up to +8.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/currencylayer/apis.yml: open an issue on github.com/api-evangelist/currencylayer to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
RegTech, AML/KYC and Money Transmission	undeclared	-	-	-

OPEN COLLECTION

Currencylayer API

OPEN COLLECTION

Currencylayer API pricing

Prices published by Currencylayer, read 2026-10-28 from currencylayer.com/pricing.

Plan	Price
Free	$0.00 No hidden fees Includes: 100 API Calls, Daily Updates, Historical Rates, HTTPS Encryption, No Support, Non-Commercial Use
Basic	$14.99/mo no hidden fees Includes: 10,000 Requests
Basic (yearly)	$13.99/mo or pay $161.99/ year Includes: 10,000 Requests
Enterprise	$59.99/mo no hidden fees Includes: 100,000 Requests
Enterprise (yearly)	$52.99/mo or pay $629.99/ year Includes: 100,000 Requests
Enterprise+	$99.99/mo no hidden fees Includes: 500,000 Requests
Enterprise+ (yearly)	$84.99/mo or pay $1,019.99/ year Includes: 500,000 Requests
Custom	Contact us Includes: Volume Requests, all features

Plan details, limits and sources →

Billed by: requests · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Currencylayer Plans Pricing

8 plans

PLANS

Currencylayer Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Currencylayer Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Currencylayer

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Currencylayer Finops

FINOPS

Features 10

Notable capabilities this provider offers.

168 World Currencies

Coverage of fiat currencies plus precious metals, sourced from 15+ commercial-grade providers.

Real-Time Exchange Rates

Latest rates with refresh cadence ranging from hourly (Free) to 60 seconds (Enterprise and above).

Historical Exchange Rates

End-of-day rates for any day since 1999, available on every plan including Free.

Currency Conversion Endpoint

On-demand conversion between any two currencies at real-time or historical rates.

Time-Frame Endpoint

Daily rates between two arbitrary dates (max 365 days) for trend analysis.

Change Endpoint

Start rate, end rate, absolute change, and percentage change for a chosen window.

HTTPS Encryption

SSL-secured transport on Basic plan and above; Free is HTTP only.

Source Currency Switching

Choose any of the 168 codes as the base currency on Basic plan and above.

APILayer Unified Auth

One APILayer `apikey` works across Currencylayer and other APILayer marketplace APIs.

Bank-Grade Data Sourcing

Aggregated from 15+ commercial-grade providers, suitable for finance and treasury workloads.

Scroll for all 10

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Currencylayer Context

8 classes · 21 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Currencylayer — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

Currencylayer API Rules

12 rules · 4 errors 8 warnings

SPECTRAL

8 properties

JSON SCHEMA

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Currencylayer Authentication

apiKey · 2 schemes

SECURITY

Currencylayer Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Currencylayer Agentic Access

6 operations

6 operations · 0 acting

AGENTIC

Use Cases 7

What developers build with this provider.

E-Commerce Multi-Currency Pricing

Convert prices into the shopper's local currency at checkout using /convert and /live.

Treasury and Cash Reporting

Daily mark-to-market of multi-currency balances using /timeframe and /change.

Travel and Fintech Apps

Power in-app FX widgets, traveler wallets, and remittance quotes with /live.

Accounting and Ledger Reconciliation

Look up the official end-of-day rate for any historical transaction with /historical.

Backtesting and Analytics

Pull windowed rate history with /timeframe to feed quant or BI models.

Compliance and Audit Trails

Reference an immutable end-of-day rate when auditing cross-border payments.

AI Agents and MCP Tools

Expose live and historical rates to LLM agents via APILayer's MCP server pattern.

Scroll for all 7

Integrations 6

Pre-built integrations with other platforms and tools.

APILayer Marketplace

Currencylayer is distributed via the APILayer hub; signup, billing, and key management share the marketplace.

Fixer

Sister APILayer FX product with overlapping surface; commonly used interchangeably or for redundancy.

Coinlayer

Cryptocurrency exchange rate API on the same APILayer platform.

Open Exchange Rates

Competing FX API that consumers benchmark Currencylayer against.

Frankfurter / ExchangeRate.host

Free/community FX alternatives often evaluated alongside Currencylayer.

Money / money.js

Server- and browser-side libraries paired with Currencylayer for conversion math.

Solutions 6

Packaged solutions this provider offers.

Free Plan

100 requests/month, hourly refresh, USD base only, HTTP only. Best for prototyping.

Basic Plan

10,000 requests/month at $14.99/mo, HTTPS, source-currency switching, /convert endpoint.

Professional Plan

100,000 requests/month at $39.99/mo, 10-minute refresh, /convert endpoint.

Enterprise Plan

100,000 requests/month at $59.99/mo, 60-second refresh, /timeframe endpoint.

Enterprise Plus Plan

500,000 requests/month at $99.99/mo, 60-second refresh, /timeframe and /change endpoints.

Custom Plan

Volume-based pricing, 60-second refresh, dedicated account team and priority support.

Resources

Get Started 2

Portal, sign-up, and the first successful call

Signup

Signup

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

SpectralRules

SpectralRules

Vocabulary

Vocabulary

Build 4

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

APILayer MCP Server Pattern (currencylayer example)

Tools

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Support

Support

RateLimits

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

FinOps

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

PublicAPIsListing

PublicAPIsListing

Source (apis.yml)

aid: currencylayer
name: Currencylayer
description: Currencylayer is a real-time and historical foreign exchange rate JSON API delivering bank-grade exchange rate
  data for 168 world currencies and precious metals, sourced from 15+ commercial-grade providers. The service is delivered
  through the APILayer marketplace under a freemium subscription model with refresh cadence ranging from hourly on Free up
  to 60 seconds on Enterprise tiers.
url: https://currencylayer.com
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - apilayer/currencylayer-api
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
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-images.s3.amazonaws.com/shared/apis-json/icons/currencylayer.png
x-docs-platform: stoplight
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-25
tags:
- Foreign Exchange
- Conversion
- Historical Rates
- Time Frame
- Change Report
- Precious Metals
- APILayer
- Public APIs
tags_raw:
- Currency Exchange
- Foreign Exchange
- FX
- Forex
- Conversion
- Historical Rates
- Time Frame
- Change Report
- Precious Metals
- APILayer
- Public APIs
apis:
- aid: currencylayer:currencylayer-change-api
  name: Currencylayer Change API
  description: Currency change (margin and percentage) analysis between two dates.
  humanURL: https://currencylayer.com/documentation
  baseURL: https://api.apilayer.com/currency_data
  tags:
  - Change
  properties:
  - type: OpenAPI
    url: openapi/currencylayer-change-api-openapi.yml
  - type: Documentation
    url: https://docs.apilayer.com/currencylayer/docs/api-documentation
  - type: APIReference
    url: https://apilayer.com/marketplace/currency_data-api
  - type: GettingStarted
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: Authentication
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: JSONSchema
    url: json-schema/currencylayer-quotes-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-currencies-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-convert-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-timeframe-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-change-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-error-schema.json
  - type: JSONStructure
    url: json-structure/currencylayer-quotes-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-currencies-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-convert-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-timeframe-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-change-structure.json
  - type: JSONLD
    url: json-ld/currencylayer-context.jsonld
  - type: Examples
    url: examples/currencylayer-listcurrencies-example.json
  - type: Examples
    url: examples/currencylayer-getlive-example.json
  - type: Examples
    url: examples/currencylayer-gethistorical-example.json
  - type: Examples
    url: examples/currencylayer-convertcurrency-example.json
  - type: Examples
    url: examples/currencylayer-gettimeframe-example.json
  - type: Examples
    url: examples/currencylayer-getchange-example.json
  - type: RateLimits
    url: rate-limits/currencylayer-rate-limits.yml
  - type: Pricing
    url: plans/currencylayer-plans-pricing.yml
  - type: SDKs
    url: https://github.com/said-ali/currencylayer
  - type: SDKs
    url: https://github.com/phlegx/money-currencylayer-bank
  - type: SDKs
    url: https://github.com/orkhanahmadov/laravel-currencylayer
  - type: SDKs
    url: https://github.com/keymusicman/CurrencyLayer4NET
  - type: SDKs
    url: https://github.com/jfayad/currencylayer
  - type: CodeExamples
    url: https://github.com/apilayer/currencylayer-API
  - type: CodeExamples
    url: https://github.com/apilayer/currency-converter-app
  - type: CodeExamples
    url: https://github.com/apilayer/currency-conversion
- aid: currencylayer:currencylayer-conversion-api
  name: Currencylayer Conversion API
  description: On-demand currency amount conversion.
  humanURL: https://currencylayer.com/documentation
  baseURL: https://api.apilayer.com/currency_data
  tags:
  - Conversion
  properties:
  - type: OpenAPI
    url: openapi/currencylayer-conversion-api-openapi.yml
  - type: Documentation
    url: https://docs.apilayer.com/currencylayer/docs/api-documentation
  - type: APIReference
    url: https://apilayer.com/marketplace/currency_data-api
  - type: GettingStarted
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: Authentication
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: JSONSchema
    url: json-schema/currencylayer-quotes-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-currencies-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-convert-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-timeframe-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-change-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-error-schema.json
  - type: JSONStructure
    url: json-structure/currencylayer-quotes-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-currencies-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-convert-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-timeframe-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-change-structure.json
  - type: JSONLD
    url: json-ld/currencylayer-context.jsonld
  - type: Examples
    url: examples/currencylayer-listcurrencies-example.json
  - type: Examples
    url: examples/currencylayer-getlive-example.json
  - type: Examples
    url: examples/currencylayer-gethistorical-example.json
  - type: Examples
    url: examples/currencylayer-convertcurrency-example.json
  - type: Examples
    url: examples/currencylayer-gettimeframe-example.json
  - type: Examples
    url: examples/currencylayer-getchange-example.json
  - type: RateLimits
    url: rate-limits/currencylayer-rate-limits.yml
  - type: Pricing
    url: plans/currencylayer-plans-pricing.yml
  - type: SDKs
    url: https://github.com/said-ali/currencylayer
  - type: SDKs
    url: https://github.com/phlegx/money-currencylayer-bank
  - type: SDKs
    url: https://github.com/orkhanahmadov/laravel-currencylayer
  - type: SDKs
    url: https://github.com/keymusicman/CurrencyLayer4NET
  - type: SDKs
    url: https://github.com/jfayad/currencylayer
  - type: CodeExamples
    url: https://github.com/apilayer/currencylayer-API
  - type: CodeExamples
    url: https://github.com/apilayer/currency-converter-app
  - type: CodeExamples
    url: https://github.com/apilayer/currency-conversion
- aid: currencylayer:currencylayer-rates-api
  name: Currencylayer Rates API
  description: Real-time and historical foreign exchange rate operations.
  humanURL: https://currencylayer.com/documentation
  baseURL: https://api.apilayer.com/currency_data
  tags:
  - Rates
  properties:
  - type: OpenAPI
    url: openapi/currencylayer-rates-api-openapi.yml
  - type: Documentation
    url: https://docs.apilayer.com/currencylayer/docs/api-documentation
  - type: APIReference
    url: https://apilayer.com/marketplace/currency_data-api
  - type: GettingStarted
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: Authentication
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: JSONSchema
    url: json-schema/currencylayer-quotes-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-currencies-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-convert-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-timeframe-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-change-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-error-schema.json
  - type: JSONStructure
    url: json-structure/currencylayer-quotes-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-currencies-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-convert-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-timeframe-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-change-structure.json
  - type: JSONLD
    url: json-ld/currencylayer-context.jsonld
  - type: Examples
    url: examples/currencylayer-listcurrencies-example.json
  - type: Examples
    url: examples/currencylayer-getlive-example.json
  - type: Examples
    url: examples/currencylayer-gethistorical-example.json
  - type: Examples
    url: examples/currencylayer-convertcurrency-example.json
  - type: Examples
    url: examples/currencylayer-gettimeframe-example.json
  - type: Examples
    url: examples/currencylayer-getchange-example.json
  - type: RateLimits
    url: rate-limits/currencylayer-rate-limits.yml
  - type: Pricing
    url: plans/currencylayer-plans-pricing.yml
  - type: SDKs
    url: https://github.com/said-ali/currencylayer
  - type: SDKs
    url: https://github.com/phlegx/money-currencylayer-bank
  - type: SDKs
    url: https://github.com/orkhanahmadov/laravel-currencylayer
  - type: SDKs
    url: https://github.com/keymusicman/CurrencyLayer4NET
  - type: SDKs
    url: https://github.com/jfayad/currencylayer
  - type: CodeExamples
    url: https://github.com/apilayer/currencylayer-API
  - type: CodeExamples
    url: https://github.com/apilayer/currency-converter-app
  - type: CodeExamples
    url: https://github.com/apilayer/currency-conversion
- aid: currencylayer:currencylayer-symbols-api
  name: Currencylayer Symbols API
  description: Discovery of supported currency symbols.
  humanURL: https://currencylayer.com/documentation
  baseURL: https://api.apilayer.com/currency_data
  tags:
  - Symbols
  properties:
  - type: OpenAPI
    url: openapi/currencylayer-symbols-api-openapi.yml
  - type: Documentation
    url: https://docs.apilayer.com/currencylayer/docs/api-documentation
  - type: APIReference
    url: https://apilayer.com/marketplace/currency_data-api
  - type: GettingStarted
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: Authentication
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: JSONSchema
    url: json-schema/currencylayer-quotes-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-currencies-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-convert-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-timeframe-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-change-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-error-schema.json
  - type: JSONStructure
    url: json-structure/currencylayer-quotes-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-currencies-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-convert-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-timeframe-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-change-structure.json
  - type: JSONLD
    url: json-ld/currencylayer-context.jsonld
  - type: Examples
    url: examples/currencylayer-listcurrencies-example.json
  - type: Examples
    url: examples/currencylayer-getlive-example.json
  - type: Examples
    url: examples/currencylayer-gethistorical-example.json
  - type: Examples
    url: examples/currencylayer-convertcurrency-example.json
  - type: Examples
    url: examples/currencylayer-gettimeframe-example.json
  - type: Examples
    url: examples/currencylayer-getchange-example.json
  - type: RateLimits
    url: rate-limits/currencylayer-rate-limits.yml
  - type: Pricing
    url: plans/currencylayer-plans-pricing.yml
  - type: SDKs
    url: https://github.com/said-ali/currencylayer
  - type: SDKs
    url: https://github.com/phlegx/money-currencylayer-bank
  - type: SDKs
    url: https://github.com/orkhanahmadov/laravel-currencylayer
  - type: SDKs
    url: https://github.com/keymusicman/CurrencyLayer4NET
  - type: SDKs
    url: https://github.com/jfayad/currencylayer
  - type: CodeExamples
    url: https://github.com/apilayer/currencylayer-API
  - type: CodeExamples
    url: https://github.com/apilayer/currency-converter-app
  - type: CodeExamples
    url: https://github.com/apilayer/currency-conversion
- aid: currencylayer:currencylayer-time-frame-api
  name: Currencylayer Time Frame API
  description: Daily historical rates between two dates.
  humanURL: https://currencylayer.com/documentation
  baseURL: https://api.apilayer.com/currency_data
  tags:
  - Time Frame
  properties:
  - type: OpenAPI
    url: openapi/currencylayer-time-frame-api-openapi.yml
  - type: Documentation
    url: https://docs.apilayer.com/currencylayer/docs/api-documentation
  - type: APIReference
    url: https://apilayer.com/marketplace/currency_data-api
  - type: GettingStarted
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: Authentication
    url: https://docs.apilayer.com/currencylayer/docs/getting-started
  - type: JSONSchema
    url: json-schema/currencylayer-quotes-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-currencies-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-convert-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-timeframe-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-change-schema.json
  - type: JSONSchema
    url: json-schema/currencylayer-error-schema.json
  - type: JSONStructure
    url: json-structure/currencylayer-quotes-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-currencies-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-convert-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-timeframe-structure.json
  - type: JSONStructure
    url: json-structure/currencylayer-change-structure.json
  - type: JSONLD
    url: json-ld/currencylayer-context.jsonld
  - type: Examples
    url: examples/currencylayer-listcurrencies-example.json
  - type: Examples
    url: examples/currencylayer-getlive-example.json
  - type: Examples
    url: examples/currencylayer-gethistorical-example.json
  - type: Examples
    url: examples/currencylayer-convertcurrency-example.json
  - type: Examples
    url: examples/currencylayer-gettimeframe-example.json
  - type: Examples
    url: examples/currencylayer-getchange-example.json
  - type: RateLimits
    url: rate-limits/currencylayer-rate-limits.yml
  - type: Pricing
    url: plans/currencylayer-plans-pricing.yml
  - type: SDKs
    url: https://github.com/said-ali/currencylayer
  - type: SDKs
    url: https://github.com/phlegx/money-currencylayer-bank
  - type: SDKs
    url: https://github.com/orkhanahmadov/laravel-currencylayer
  - type: SDKs
    url: https://github.com/keymusicman/CurrencyLayer4NET
  - type: SDKs
    url: https://github.com/jfayad/currencylayer
  - type: CodeExamples
    url: https://github.com/apilayer/currencylayer-API
  - type: CodeExamples
    url: https://github.com/apilayer/currency-converter-app
  - type: CodeExamples
    url: https://github.com/apilayer/currency-conversion
common:
- type: CapabilityMap
  url: capabilities/currencylayer-capability-edges.yml
  name: Currencylayer Business Capability Map
- type: IssueTracker
  url: https://github.com/apilayer/currencylayer-API/issues
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/currencylayer/overview
- type: AgenticAccess
  url: agentic-access/currencylayer-agentic-access.yml
- type: DomainSecurity
  url: security/currencylayer-domain-security.yml
- type: Authentication
  url: authentication/currencylayer-authentication.yml
- type: Website
  url: https://currencylayer.com
- type: Documentation
  url: https://docs.apilayer.com/currencylayer/docs/api-documentation
- type: APIReference
  url: https://apilayer.com/marketplace/currency_data-api
- type: Pricing
  url: https://currencylayer.com/product
- type: Signup
  url: https://apilayer.com/signup
- type: Login
  url: https://apilayer.com/login
- type: TermsOfService
  url: https://currencylayer.com/terms
- type: PrivacyPolicy
  url: https://currencylayer.com/privacy
- type: Support
  url: https://currencylayer.com/contact
- type: Blog
  url: https://blog.apilayer.com/
- type: GitHubOrganization
  url: https://github.com/apilayer
- type: GitHubRepository
  url: https://github.com/apilayer/currencylayer-API
- type: PublicAPIsListing
  url: https://github.com/public-apis/public-apis
- type: SpectralRules
  url: rules/currencylayer-rules.yml
- type: Vocabulary
  url: vocabulary/currencylayer-vocabulary.yml
- type: Plans
  url: plans/currencylayer-plans-pricing.yml
- type: RateLimits
  url: rate-limits/currencylayer-rate-limits.yml
- type: FinOps
  url: finops/currencylayer-finops.yml
- type: Tools
  url: https://blog.apilayer.com/how-to-turn-any-rest-api-into-an-mcp-server-for-claude-complete-2026-pillar-guide/
  title: APILayer MCP Server Pattern (currencylayer example)
- type: Features
  data:
  - name: 168 World Currencies
    description: Coverage of fiat currencies plus precious metals, sourced from 15+ commercial-grade providers.
  - name: Real-Time Exchange Rates
    description: Latest rates with refresh cadence ranging from hourly (Free) to 60 seconds (Enterprise and above).
  - name: Historical Exchange Rates
    description: End-of-day rates for any day since 1999, 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-Frame Endpoint
    description: Daily rates between two arbitrary dates (max 365 days) for trend analysis.
  - name: Change 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 168 codes as the base currency on Basic plan and above.
  - name: APILayer Unified Auth
    description: One APILayer `apikey` works across Currencylayer and other APILayer marketplace APIs.
  - name: Bank-Grade Data Sourcing
    description: Aggregated from 15+ commercial-grade providers, suitable for finance and treasury workloads.
- type: UseCases
  data:
  - name: E-Commerce Multi-Currency Pricing
    description: Convert prices into the shopper's local currency at checkout using /convert and /live.
  - name: Treasury and Cash Reporting
    description: Daily mark-to-market of multi-currency balances using /timeframe and /change.
  - name: Travel and Fintech Apps
    description: Power in-app FX widgets, traveler wallets, and remittance quotes with /live.
  - name: Accounting and Ledger Reconciliation
    description: Look up the official end-of-day rate for any historical transaction with /historical.
  - name: Backtesting and Analytics
    description: Pull windowed rate history with /timeframe to feed quant or BI models.
  - name: Compliance and Audit Trails
    description: Reference an immutable end-of-day rate when auditing cross-border payments.
  - name: AI Agents and MCP Tools
    description: Expose live and historical rates to LLM agents via APILayer's MCP server pattern.
- type: Integrations
  data:
  - name: APILayer Marketplace
    description: Currencylayer is distributed via the APILayer hub; signup, billing, and key management share the marketplace.
  - name: Fixer
    description: Sister APILayer FX product with overlapping surface; commonly used interchangeably or for redundancy.
  - name: Coinlayer
    description: Cryptocurrency exchange rate API on the same APILayer platform.
  - name: Open Exchange Rates
    description: Competing FX API that consumers benchmark Currencylayer against.
  - name: Frankfurter / ExchangeRate.host
    description: Free/community FX alternatives often evaluated alongside Currencylayer.
  - name: Money / money.js
    description: Server- and browser-side libraries paired with Currencylayer for conversion math.
- type: Solutions
  data:
  - name: Free Plan
    description: 100 requests/month, hourly refresh, USD 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 $39.99/mo, 10-minute refresh, /convert endpoint.
  - name: Enterprise Plan
    description: 100,000 requests/month at $59.99/mo, 60-second refresh, /timeframe endpoint.
  - name: Enterprise Plus Plan
    description: 500,000 requests/month at $99.99/mo, 60-second refresh, /timeframe and /change endpoints.
  - name: Custom Plan
    description: Volume-based pricing, 60-second refresh, dedicated account team and priority support.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Currencylayer API — frequently asked questions

Does Currencylayer have an API?

Yes. APIs.io lists 5 APIs from Currencylayer, including Currencylayer Change API, Currencylayer Conversion API and Currencylayer Rates API, and 2 more.

Is there an OpenAPI specification for the Currencylayer API?

Yes. APIs.io indexes 5 OpenAPI specifications for Currencylayer, each linked for download from this page.

How do I authenticate with the Currencylayer API?

Currencylayer uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Currencylayer Authentication.

How much does the Currencylayer API cost?

Currencylayer publishes its prices; its Free plan is $0.00 No hidden fees as of 2026-10-28. APIs.io lists 8 pricing plans for Currencylayer, with each plan's price, limits and inclusions under Pricing on this page.

Is the Currencylayer API ready for AI agents?

Currencylayer has a Kin Score of 57.0 out of 100 (strong) and an Agent Readiness score of 24.1 (agent-aware), scored by API Evangelist on 2026-11-06.

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