Cryptocurrency APIs

Real-time & Historical Crypto Data APIs

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cryptocurrency data

Unlimited REST

We do not limit how much you can use our RESTful APIs. There are no daily call limits, or maximum queries per minute.

Low Latency

Our platform provides low latency real-time data with a mean latency of 20ms. This is orders of magnitude faster than our closest competitor.

Snapshot APIs

See the entire market at a glance with our powerful Snapshot APIs. You can also query the gainers and losers for the current day.

Aggregates

1min - 1yr aggregate intervals. We allow you to query the aggregate in the size you want. 1min, 7min, 16day, anything is possible.

Transparent Pricing

Know exactly what you're going to pay. Get the data directly from the source, don't waste money on sales middlemen.

Level2 Books

We combine the level2 book from the crypto exchanges into a single, uniform order book. Now you can see a book of the entire market, not just 1 exchange.

Unlimited Access

Cryptocurrency APIs

Crypto APIs

Crypto WebSockets

Use Any Language

Clients for All Major Development Languages

Create your application in any language. No more C++/Java limitations. Use the technology you already know, and spend your time creating, not integrating.

Getting Started

1package main
2import (
3    "fmt"
4    websocket "github.com/gorilla/websocket"
5)
6
7const APIKEY = "YOUR_API_KEY"
8const CHANNELS = "C.AUD/USD,C.USD/EUR,C.USD/JPY"
9
10func main(){
11    c, _, err := websocket.DefaultDialer.Dial("wss://socket.polygon.io/forex", nil )
12    if err != nil {
13        panic( err )
14    }
15    defer c.Close()
16    c.WriteMessage( websocket.TextMessage, []byte( fmt.Sprintf("{\"action\":\"auth\",\"params\":\"%s\"}", APIKEY) ) )
17    c.WriteMessage( websocket.TextMessage, []byte( fmt.Sprintf("{\"action\":\"subscribe\",\"params\":\"%s\"}", CHANNELS) ) )
18    var msg interface{}
19    for {
20        err := c.ReadJSON( &msg ); if err != nil {
21            panic( err )
22        }
23        fmt.Println( "Message:", msg )
24    }
25}
26

Accurate, Fast, and Reliable

Complete redundancy, horizontally scalable, built on proven technologies.

< 1 millisecond

Ultra low latency APIs

Equinix NY Datacenters

Same datacenters as the exchanges

1,000,000+

Messages per Second

Impeccable Reliability

Multiple redundancies

Crypto Pricing

Instant Access. Cancel Anytime.

BasicNEW

Great for trying our APIs

Free

Forex + Crypto
5 Calls per Minute
End of Day Data
2 Years of Historical Data
1 Minute Granularity
Snapshot
WebSocket

Individual Use
Pro / Non-Pro

StarterPOPULAR

Great for Historical Data

$49/m

Forex + Crypto
Unlimited API Calls
Real-time Data
15 Years Historical Data
Tick-level Granularity
Snapshot
WebSocket

Individual Use
Pro / Non-Pro

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Not sure which plan to choose?

Contact Us

We’re always here to assist if you happen to need our help. Feel free to contact us and one of our team members will gladly walk you through choosing the right plan for you.

We Happy Customers

Polygon is a dream come true when compared to some of the largest players in the market. They provide excellent quality data through a modern API with no long term contract.

Dan Aisen

Founder @ Proof Trading