Pair chips in bulk
curl --request POST \
--url https://api2.endstate.io/v1/chips/bulk \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"chips": [
{
"unit_id": "22222222-2222-2222-2222-222222222222",
"is_test": true
},
{
"unit_id": "33333333-3333-3333-3333-333333333333",
"chip_id": "ABCDEF0123",
"e": "C78566198547116F3A715DC1C62AF96F"
}
]
}
'import requests
url = "https://api2.endstate.io/v1/chips/bulk"
payload = { "chips": [
{
"unit_id": "22222222-2222-2222-2222-222222222222",
"is_test": True
},
{
"unit_id": "33333333-3333-3333-3333-333333333333",
"chip_id": "ABCDEF0123",
"e": "C78566198547116F3A715DC1C62AF96F"
}
] }
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
chips: [
{unit_id: '22222222-2222-2222-2222-222222222222', is_test: true},
{
unit_id: '33333333-3333-3333-3333-333333333333',
chip_id: 'ABCDEF0123',
e: 'C78566198547116F3A715DC1C62AF96F'
}
]
})
};
fetch('https://api2.endstate.io/v1/chips/bulk', 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://api2.endstate.io/v1/chips/bulk",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'chips' => [
[
'unit_id' => '22222222-2222-2222-2222-222222222222',
'is_test' => true
],
[
'unit_id' => '33333333-3333-3333-3333-333333333333',
'chip_id' => 'ABCDEF0123',
'e' => 'C78566198547116F3A715DC1C62AF96F'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api2.endstate.io/v1/chips/bulk"
payload := strings.NewReader("{\n \"chips\": [\n {\n \"unit_id\": \"22222222-2222-2222-2222-222222222222\",\n \"is_test\": true\n },\n {\n \"unit_id\": \"33333333-3333-3333-3333-333333333333\",\n \"chip_id\": \"ABCDEF0123\",\n \"e\": \"C78566198547116F3A715DC1C62AF96F\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api2.endstate.io/v1/chips/bulk")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"chips\": [\n {\n \"unit_id\": \"22222222-2222-2222-2222-222222222222\",\n \"is_test\": true\n },\n {\n \"unit_id\": \"33333333-3333-3333-3333-333333333333\",\n \"chip_id\": \"ABCDEF0123\",\n \"e\": \"C78566198547116F3A715DC1C62AF96F\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api2.endstate.io/v1/chips/bulk")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"chips\": [\n {\n \"unit_id\": \"22222222-2222-2222-2222-222222222222\",\n \"is_test\": true\n },\n {\n \"unit_id\": \"33333333-3333-3333-3333-333333333333\",\n \"chip_id\": \"ABCDEF0123\",\n \"e\": \"C78566198547116F3A715DC1C62AF96F\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"chips": [
{
"chip_id": "FEDCBA9876",
"is_test": true,
"unit": {
"id": "22222222-2222-2222-2222-222222222222",
"external_id": "unit-001",
"name": "Example Unit",
"attributes": null,
"created_at": "2026-05-16T12:00:00.000Z",
"collection": {
"id": "8e1a7f50-90ab-4cde-8012-3456789abcde",
"name": "Example Collection",
"external_id": "collection-001",
"contract": {
"address": "0x1111111111111111111111111111111111111111",
"chain_id": 84532,
"status": "active"
},
"token": {
"status": "pending",
"serial": null
}
}
},
"scan_count": 0,
"created_at": "2026-05-16T12:00:00.000Z"
},
{
"chip_id": "ABCDEF0123",
"is_test": false,
"unit": {
"id": "33333333-3333-3333-3333-333333333333",
"external_id": "unit-002",
"name": "Example Unit",
"attributes": null,
"created_at": "2026-05-16T12:00:00.000Z",
"collection": {
"id": "8e1a7f50-90ab-4cde-8012-3456789abcde",
"name": "Example Collection",
"external_id": "collection-001",
"contract": {
"address": "0x1111111111111111111111111111111111111111",
"chain_id": 84532,
"status": "active"
},
"token": {
"status": "pending",
"serial": null
}
}
},
"scan_count": 0,
"created_at": "2026-05-16T12:00:00.000Z"
}
]
}Chips
Pair chips in bulk
Pairs up to 100 chips to units of a single collection in one request. Units are issued in the order provided.
POST
/
v1
/
chips
/
bulk
Pair chips in bulk
curl --request POST \
--url https://api2.endstate.io/v1/chips/bulk \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"chips": [
{
"unit_id": "22222222-2222-2222-2222-222222222222",
"is_test": true
},
{
"unit_id": "33333333-3333-3333-3333-333333333333",
"chip_id": "ABCDEF0123",
"e": "C78566198547116F3A715DC1C62AF96F"
}
]
}
'import requests
url = "https://api2.endstate.io/v1/chips/bulk"
payload = { "chips": [
{
"unit_id": "22222222-2222-2222-2222-222222222222",
"is_test": True
},
{
"unit_id": "33333333-3333-3333-3333-333333333333",
"chip_id": "ABCDEF0123",
"e": "C78566198547116F3A715DC1C62AF96F"
}
] }
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
chips: [
{unit_id: '22222222-2222-2222-2222-222222222222', is_test: true},
{
unit_id: '33333333-3333-3333-3333-333333333333',
chip_id: 'ABCDEF0123',
e: 'C78566198547116F3A715DC1C62AF96F'
}
]
})
};
fetch('https://api2.endstate.io/v1/chips/bulk', 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://api2.endstate.io/v1/chips/bulk",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'chips' => [
[
'unit_id' => '22222222-2222-2222-2222-222222222222',
'is_test' => true
],
[
'unit_id' => '33333333-3333-3333-3333-333333333333',
'chip_id' => 'ABCDEF0123',
'e' => 'C78566198547116F3A715DC1C62AF96F'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api2.endstate.io/v1/chips/bulk"
payload := strings.NewReader("{\n \"chips\": [\n {\n \"unit_id\": \"22222222-2222-2222-2222-222222222222\",\n \"is_test\": true\n },\n {\n \"unit_id\": \"33333333-3333-3333-3333-333333333333\",\n \"chip_id\": \"ABCDEF0123\",\n \"e\": \"C78566198547116F3A715DC1C62AF96F\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api2.endstate.io/v1/chips/bulk")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"chips\": [\n {\n \"unit_id\": \"22222222-2222-2222-2222-222222222222\",\n \"is_test\": true\n },\n {\n \"unit_id\": \"33333333-3333-3333-3333-333333333333\",\n \"chip_id\": \"ABCDEF0123\",\n \"e\": \"C78566198547116F3A715DC1C62AF96F\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api2.endstate.io/v1/chips/bulk")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"chips\": [\n {\n \"unit_id\": \"22222222-2222-2222-2222-222222222222\",\n \"is_test\": true\n },\n {\n \"unit_id\": \"33333333-3333-3333-3333-333333333333\",\n \"chip_id\": \"ABCDEF0123\",\n \"e\": \"C78566198547116F3A715DC1C62AF96F\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"chips": [
{
"chip_id": "FEDCBA9876",
"is_test": true,
"unit": {
"id": "22222222-2222-2222-2222-222222222222",
"external_id": "unit-001",
"name": "Example Unit",
"attributes": null,
"created_at": "2026-05-16T12:00:00.000Z",
"collection": {
"id": "8e1a7f50-90ab-4cde-8012-3456789abcde",
"name": "Example Collection",
"external_id": "collection-001",
"contract": {
"address": "0x1111111111111111111111111111111111111111",
"chain_id": 84532,
"status": "active"
},
"token": {
"status": "pending",
"serial": null
}
}
},
"scan_count": 0,
"created_at": "2026-05-16T12:00:00.000Z"
},
{
"chip_id": "ABCDEF0123",
"is_test": false,
"unit": {
"id": "33333333-3333-3333-3333-333333333333",
"external_id": "unit-002",
"name": "Example Unit",
"attributes": null,
"created_at": "2026-05-16T12:00:00.000Z",
"collection": {
"id": "8e1a7f50-90ab-4cde-8012-3456789abcde",
"name": "Example Collection",
"external_id": "collection-001",
"contract": {
"address": "0x1111111111111111111111111111111111111111",
"chain_id": 84532,
"status": "active"
},
"token": {
"status": "pending",
"serial": null
}
}
},
"scan_count": 0,
"created_at": "2026-05-16T12:00:00.000Z"
}
]
}Authorizations
Use Authorization: Bearer end_sk_* for partner API keys (e.g. end_sk_AbCd_example_api_key).
Headers
Unique key that makes this request safe to retry. Replaying the key with the same body returns the original response with Idempotent-Replayed: true; replaying it with a different body returns 409 idempotency.key_conflict.
Required string length:
1 - 255Example:
"a1b2c3d4-0000-4000-8000-000000000000"
Body
application/json
Pair up to 100 chips in one request. All units must belong to the same collection; units are issued in the order provided.
Required array length:
1 - 100 elements- Option 1
- Option 2
Show child attributes
Show child attributes
Response
Created chips, in the order provided.
The paired chips, in the order provided. Each carries a snapshot of its unit and issuance status.
Show child attributes
Show child attributes