curl --request GET \
--url https://vcm-fyi-api.fly.dev/v1/charts/top_buyers \
--header 'X-API-KEY: <api-key>'import requests
url = "https://vcm-fyi-api.fly.dev/v1/charts/top_buyers"
headers = {"X-API-KEY": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'X-API-KEY': '<api-key>'}};
fetch('https://vcm-fyi-api.fly.dev/v1/charts/top_buyers', 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://vcm-fyi-api.fly.dev/v1/charts/top_buyers",
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://vcm-fyi-api.fly.dev/v1/charts/top_buyers"
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))
}HttpResponse<String> response = Unirest.get("https://vcm-fyi-api.fly.dev/v1/charts/top_buyers")
.header("X-API-KEY", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://vcm-fyi-api.fly.dev/v1/charts/top_buyers")
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{}{
"detail": [
{
"loc": [
"<string>"
],
"msg": "<string>",
"type": "<string>"
}
]
}Top credit buyers by retirement volume
Get the top buyers ranked by total retired credit quantity.
Returns a ranked list of buyers with their total retired volume, number of projects purchased from, and transaction count. Also includes aggregate totals across all buyers.
Buyer names are harmonized and cleaned — junk entries (e.g., “undisclosed”, “n/a”, cancellations) are excluded.
Parameters:
limit: Number of top buyers to return (1-100, default: 20).
Filters: All standard project and credit filters apply, letting you find top buyers for specific registries, countries, or categories.
curl --request GET \
--url https://vcm-fyi-api.fly.dev/v1/charts/top_buyers \
--header 'X-API-KEY: <api-key>'import requests
url = "https://vcm-fyi-api.fly.dev/v1/charts/top_buyers"
headers = {"X-API-KEY": "<api-key>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {'X-API-KEY': '<api-key>'}};
fetch('https://vcm-fyi-api.fly.dev/v1/charts/top_buyers', 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://vcm-fyi-api.fly.dev/v1/charts/top_buyers",
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://vcm-fyi-api.fly.dev/v1/charts/top_buyers"
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))
}HttpResponse<String> response = Unirest.get("https://vcm-fyi-api.fly.dev/v1/charts/top_buyers")
.header("X-API-KEY", "<api-key>")
.asString();require 'uri'
require 'net/http'
url = URI("https://vcm-fyi-api.fly.dev/v1/charts/top_buyers")
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{}{
"detail": [
{
"loc": [
"<string>"
],
"msg": "<string>",
"type": "<string>"
}
]
}Authorizations
Query Parameters
Case insensitive search string. Currently searches on project_id and name fields only.
Number of top buyers to return
1 <= x <= 100Registry name
verra, gold-standard, american-carbon-registry, climate-action-reserve, art-trees, isometric, puro-earth, plan-vivo, none Country name
Protocol name
Category name
Whether project is an ARB project
Format: YYYY-MM-DD
Format: YYYY-MM-DD
Minimum number of issued credits
Maximum number of issued credits
Minimum number of retired credits
Maximum number of retired credits
Project type
Project proponent/developer name
UN SDG goals (1-17). Multiple values = AND filter (must have ALL selected goals)
Specific certification labels (e.g., ccb-gold, ccb-biodiversity-gold, corsia). Multiple values = OR filter
Puro.earth CORC durability (100+ or 1000+). Multiple values = OR filter
Has CCB (Climate, Community & Biodiversity) certification
Has ICVCM Core Carbon Principles certification
CORSIA eligible
Has SD VISta certification
Has Social Carbon certification
Authorized under Paris Agreement Article 6
Article 6 authorization types: NDC Use, Intl mitigation purposes, Other purposes
Transaction type
Vintage
Format: YYYY-MM-DD
Format: YYYY-MM-DD
Minimum transaction quantity
Maximum transaction quantity
Response
Ranked list of top buyers with total stats
The response is of type Response Get Top Buyers V1 Charts Top Buyers Get · object.