Software Alternatives & Startups

FXProof VS Currencylayer

Compare FXProof VS Currencylayer and see what are their differences

FXProof logo FXProof

Keep a signed, verifiable record of the official exchange rate used in an invoice, expense, accounting entry, tax file, or review.

Currencylayer logo Currencylayer

Free and startup-friendly currency converter JSON API for real-time and historical exchange rates - reliable and accurate, supporting 168 world currencies.
  • FXProof Main page
    Main page //
    2026-08-02
  • FXProof Proof samples page
    Proof samples page //
    2026-08-02
  • FXProof Check a proof
    Check a proof //
    2026-08-02

FXProof is a B2B SaaS for creating signed, verifiable proof documents from official exchange-rate data.

For each supported dataset and date, FXProof keeps the official source, rate context, document ID, payload hash, digital signature, and public verification path together in a reusable proof bundle. The resulting PDF can be stored with an invoice, expense, accounting entry, tax file, audit workpaper, or internal-control record, so the exchange rate can be reviewed later without rebuilding the evidence trail.

Supported official sources currently include the European Central Bank, HMRC, the Federal Reserve System, the Bank of Canada, and the National Bank of Kazakhstan.

Key capabilities include:

  • Signed exchange-rate proof PDFs
  • Public verification using the document ID and payload hash
  • Current and historical official exchange-rate datasets
  • Reusable proof bundles
  • Source attribution and verification metadata
  • Dataset-first API for workflow automation
  • Free Basic plan for occasional proof needs

Users can inspect public proof samples, verify supported documents without an account, retrieve ready proof bundles through the web application, and automate supported workflows through the API.

FXProof does not provide currency exchange, payment, money-transfer, trading, investment, legal, tax, or accounting services. Official institutions remain the sources of the underlying reference rates; FXProof provides the proof document and evidence workflow around those data.

  • Currencylayer Landing page
    Landing page //
    2022-11-27

Currencylayer provides a simple REST API with real-time and historical exchange rates for 168 world currencies, delivering currency pairs in universally usable JSON format - compatible with any of your applications.

Spot exchange rate data is retrieved from several major forex data providers in real-time, validated, processed and delivered hourly, every 10 minutes, or even within the 60-second market window.

Providing the most representative forex market value available ("midpoint" value) for every API request, the currencylayer API powers currency converters, mobile applications, financial software components and back-office systems all around the world.

FXProof

$ Details
freemium €59 / Monthly (Pro)
Platforms
SaaS Web REST API
Release Date
2026 July
Startup details
Country
Kazakhstan
State
Astana
City
Astana
Founder(s)
Igor Lepekhin
Employees
1 - 9

Currencylayer

$ Details
freemium $14.99 / Monthly (10,000 Requests / Monthly)
Platforms
-
Release Date
-

FXProof features and specs

  • Signed Proof Documents
    Digitally signed PDF proof documents based on official exchange-rate data.
  • Public Verification
    Verify a proof using its document ID and payload hash without signing in.
  • Official Rate Sources
    Supports the ECB, HMRC, Federal Reserve, Bank of Canada, and National Bank of Kazakhstan.
  • Current and Historical Rates
    Create proof records for supported current and historical exchange-rate datasets.
  • Reusable Proof Bundles
    Reopen and download previously accessed proof bundles without recreating the evidence.
  • Source Attribution
    Preserves the official source, dataset, rate date, and supporting reference information.
  • Verification Metadata
    Includes the document ID, payload hash, signature status, and verification details.
  • REST API
    Automate rate retrieval, proof-bundle access, and document verification through the API.
  • Web Application
    Search for supported datasets, select a date, and retrieve ready proof documents in a browser.

Currencylayer features and specs

  • Advanced Data Coverage
    168

FXProof videos

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Currencylayer videos

CurrencyLayer | Reliable Exchange Rates & Currency Conversion for your Business

Category Popularity

0-100% (relative to FXProof and Currencylayer)
Compliance
100 100%
0% 0
APIs
14 14%
86% 86
Finance
23 23%
77% 77
Currency Exchange API
0 0%
100% 100

Questions & Answers

As answered by people managing FXProof and Currencylayer.

How would you describe the primary audience of your product?

FXProof's answer

FXProof is intended for:

  • Accounting and finance teams
  • Bookkeepers and accounting practices
  • Tax advisers and tax-preparation teams
  • Auditors
  • Compliance and internal-control teams
  • Small businesses with international transactions
  • Freelancers and independent consultants
  • Fintech and accounting software providers
  • Developers automating exchange-rate evidence workflows

The common requirement is a repeatable way to document and later verify the official exchange rate used in an invoice, expense, accounting entry, tax file, audit workpaper, or internal review.

What's the story behind your product?

FXProof's answer

FXProof was created to solve a practical evidence problem. Official exchange rates are usually available, but businesses often have to collect the supporting evidence manually by saving webpages, copying values into spreadsheets, taking screenshots, or rebuilding the source trail months later.

These methods are difficult to reproduce and can leave a weak audit trail. FXProof was designed to connect the official source, date, exchange-rate context, signed PDF, document ID, payload hash, and verification process in one consistent workflow. The goal is to make an exchange-rate record easier to store, explain, share, and verify when it is reviewed later.

What makes your product unique?

FXProof's answer

FXProof does not simply provide an exchange rate. It creates a signed, verifiable proof document that preserves the official source, dataset, date, document ID, payload hash, signature status, and verification details in one reusable evidence bundle. A recipient can later verify the proof through a public verification page. This makes FXProof suitable for accounting, tax, audit, compliance, internal-control, and dispute-review records where the rate must remain explainable and verifiable over time.

Why should a person choose your product over its competitors?

FXProof's answer

Most exchange-rate services focus on displaying rates, converting currencies, or providing raw API data. FXProof is designed for situations where a business must document which official rate was used and provide evidence that can be reviewed later.

Users receive a signed proof PDF, source attribution, verification metadata, and a public verification path. Previously accessed proof bundles can be reused and downloaded again, while the API allows the same evidence workflow to be automated. FXProof is therefore a better fit when the required result is not merely a rate, but a verifiable business record.

Who are some of the biggest customers of your product?

FXProof's answer

FXProof does not currently publish customer names. As a recently launched service, it will only identify customers publicly after receiving their permission.

User comments

Share your experience with using FXProof and Currencylayer. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Currencylayer seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

FXProof mentions (0)

We have not tracked any mentions of FXProof yet. Tracking of FXProof recommendations started around Aug 2026.

Currencylayer mentions (3)

What are some alternatives?

When comparing FXProof and Currencylayer, you can also consider the following products

Open Exchange Rates - Free, hourly-updated exchange rates - a simple, accurate, open-source JSON API. Free for personal use, a bargain for everybody else.

Fixer.io - Fixer provides a free, simple, and lightweight API for current and historical foreign exchange rates and currency conversion. The API tracks rates published daily by the European Central Bank.

ExchangeRate-API - An easy to use, free & reliable Exchange Rate API trusted by tens of thousands of developers since 2010!

Exchangeratesapi.io - Simple API for Global Currency Exchange Rates

Currencyapi.com - Currencyapi.com is a free, reliable & feature complete currency exchange rates API. 170+ world currencies & 60 second update rate.

FXPing.co - Live exchange rates for 150+ currencies with a built-in FX margin calculator. Convert instantly and export to CSV, JSON or PDF.