Trade Flow / CVD

Trade flow / CVD

curl --request GET \
  --url https://api.polynode.dev/v3/perps/flow/{instrument} \
  --header 'x-api-key: <api-key>'

const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};

fetch('https://api.polynode.dev/v3/perps/flow/{instrument}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.polynode.dev/v3/perps/flow/{instrument}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.polynode.dev/v3/perps/flow/{instrument}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-api-key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.polynode.dev/v3/perps/flow/{instrument}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "bucket": "1h",
  "data": [
    {
      "buy_notional": "69650.25391",
      "cvd": "0.31442",
      "net_qty": "0.31442",
      "sell_notional": "50066.43526",
      "timestamp": 1783573200000,
      "trades": 231
    },
    {
      "buy_notional": "307178.26305",
      "cvd": "2.97517",
      "net_qty": "2.66075",
      "sell_notional": "140445.34842",
      "timestamp": 1783576800000,
      "trades": 394
    }
  ],
  "instrument_id": 6,
  "symbol": "BTC-USD"
}

GET

perps

flow

{instrument}

Trade flow / CVD

curl --request GET \
  --url https://api.polynode.dev/v3/perps/flow/{instrument} \
  --header 'x-api-key: <api-key>'

const options = {method: 'GET', headers: {'x-api-key': '<api-key>'}};

fetch('https://api.polynode.dev/v3/perps/flow/{instrument}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.polynode.dev/v3/perps/flow/{instrument}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.polynode.dev/v3/perps/flow/{instrument}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("x-api-key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.polynode.dev/v3/perps/flow/{instrument}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["x-api-key"] = '<api-key>'

response = http.request(request)
puts response.read_body

{
  "bucket": "1h",
  "data": [
    {
      "buy_notional": "69650.25391",
      "cvd": "0.31442",
      "net_qty": "0.31442",
      "sell_notional": "50066.43526",
      "timestamp": 1783573200000,
      "trades": 231
    },
    {
      "buy_notional": "307178.26305",
      "cvd": "2.97517",
      "net_qty": "2.66075",
      "sell_notional": "140445.34842",
      "timestamp": 1783576800000,
      "trades": 394
    }
  ],
  "instrument_id": 6,
  "symbol": "BTC-USD"
}

Order-flow analytics per time bucket: taker buy vs sell notional, net quantity, and the running cumulative volume delta (CVD) — a classic pressure signal. side is the taker’s direction (long = bought). Choose bucket (1m to 1d) and bound with after / before. Buckets are oldest first, because CVD is a running sum from the start of the window. A plain call therefore starts at the beginning of our archive (July 9, 2026) — for recent flow, pass after (e.g. ?after= 24 hours ago) so the CVD accumulates over exactly the window you care about.

Authorizations

x-api-key

string

header

required

Path Parameters

instrument

string

required

Instrument id (6), symbol (BTC-USD), or bare asset (btc).

Query Parameters

bucket

string

1m, 5m, 15m, 1h, 4h, 1d (default 1h)

after

string

Only rows after this time (Unix s or ms).

before

string

Only rows before this time (Unix s or ms).

limit

integer

Max rows.

Response

200 - application/json

Success

Overview

V3 Data API

Wallet P&L

Wallet Activity

Credits

Identity

Fees

Combos

Rewards

Markets & Search

Orderbook

Leaderboard & Tags

Builders

Polymarket Profiles

Global

Tokens

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Perps Analytics

Perps On-Chain

Perps Streaming

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Sports

BYOL

Backtesting

Market Card

System

Search & Context

Onchain V2 (legacy)

Authorizations

Path Parameters

Query Parameters

Response