Forex API for Developers — Fast, Free, REST-Based

A forex API built for developers: real-time mid-market rates, free tier, official SDKs for JavaScript, Python, PHP, and React, and predictable EUR pricing.

If you're a developer adding currency conversion to a product, you don't need an enterprise sales cycle, an XML feed, or a 30-page PDF spec. You need a clean REST endpoint, a free key, and code samples that compile on the first try. That's what AllRatesToday is built for.

What you get

• Real-time mid-market rates sourced from Reuters/Refinitiv and interbank feeds.
• 160+ currencies, base-currency switching on every plan.
• Free tier with HTTPS — 300 requests/month, no credit card.
• Official SDKs for JavaScript, Python, PHP, and React.
• Status page at status.allratestoday.com, 99.99% uptime target.

The endpoints you'll actually use

GET /api/rate — single pair (public)

curl 'https://allratestoday.com/api/rate?source=USD&target=EUR'

{ "rate": 0.92145, "source": "refinitiv" }

GET /api/v1/rates — multi-target, authenticated

curl 'https://allratestoday.com/api/v1/rates?source=USD&target=EUR,GBP,JPY' \
  -H 'Authorization: Bearer art_live_xxxxx'

[
  { "rate": 0.924,  "source": "USD", "target": "EUR", "time": "..." },
  { "rate": 0.791,  "source": "USD", "target": "GBP", "time": "..." },
  { "rate": 154.21, "source": "USD", "target": "JPY", "time": "..." }
]

GET /api/historical-rates — historical (authenticated)

curl 'https://allratestoday.com/api/historical-rates?source=USD&target=INR&period=7d' \
  -H 'Authorization: Bearer art_live_xxxxx'

# period accepts 1d (hourly), 7d, 30d, or 1y

SDK quickstarts

JavaScript / TypeScript

import AllRatesToday from '@allratestoday/sdk';

const client = new AllRatesToday({ apiKey: process.env.ALLRATES_API_KEY });
const { rates } = await client.latest({ base: 'USD', symbols: ['EUR', 'GBP'] });

Python

from allratestoday import AllRatesToday

client = AllRatesToday(api_key=os.environ['ALLRATES_API_KEY'])
data = client.latest(base='USD', symbols=['EUR', 'GBP'])

PHP

use AllRatesToday\AllRatesToday;

$client = new AllRatesToday(getenv('ALLRATES_API_KEY'));
$data = $client->latest(['base' => 'USD', 'symbols' => ['EUR', 'GBP']]);

Picking the right plan

• Side project / prototype: Free — 300 req/mo is plenty.
• Indie SaaS, MVP: Small (€4.99) — 5,000 req/mo with historical and commercial use.
• Production app: Medium (€9.99) — 10,000 req/mo, no rate limit.
• High-traffic platform: Large (€49.99) — 100,000 req/mo, 3 keys.

FAQ

Do I need a credit card to start?

No. The free tier is fully usable without payment details.

Can I use it from a browser?

Yes — HTTPS by default. For client-side use, restrict your key to specific origins in the dashboard.

Is the data good enough for fintech?

Yes — institutional providers, mid-market rates. For settlement-grade workflows you'd typically still pair this with a regulated FX provider.

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