List therapeutic candidates for a project
curl --request GET \
--url https://api.example.com/v1/therapeutic-candidates \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.example.com/v1/therapeutic-candidates"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.example.com/v1/therapeutic-candidates', 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.example.com/v1/therapeutic-candidates",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($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.example.com/v1/therapeutic-candidates"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.example.com/v1/therapeutic-candidates")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.example.com/v1/therapeutic-candidates")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"data": [
{
"antigen_ids": [
"a1b2c3d4-e5f6-7890-abcd-ef1234567890"
],
"created_at": "2026-04-23T14:15:00+00:00",
"drug_class": "naked_antibody",
"format": "mab",
"format_metadata": {},
"id": "c0f5e4b1-a7d2-4e0b-9f8c-1b2d3e4f5a6b",
"initial_variant_id": "9999eeee-8888-dddd-7777-cccc66665555",
"name": "anti-HER2 mab",
"object": "therapeutic_candidate",
"project_id": "7b4a3c0f-2e6d-4c7a-9e8f-1d3b5a2c4e6f",
"source_antibody_ids": [
"1111aaaa-2222-3333-4444-5555bbbbcccc"
],
"updated_at": "2026-04-23T14:15:00+00:00"
}
],
"has_more": true,
"next_cursor": "<string>"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}therapeutic-candidates
List therapeutic candidates for a project
Cursor-paginated list of therapeutic candidates in one project, newest-first.
?project_id= is required; cross-org project ids return 404.
Listed envelopes carry linked source_antibody_ids / antigen_ids
— the endpoint hydrates them with two batched junction queries per
page — but not initial_variant_id. That’s only on the create
response; retrieving it for a listing would require an N+1 variants
lookup. Use GET /v1/therapeutic-candidates/{id} or the variants
surface (forthcoming) to enumerate post-creation variants.
Cost: read — rate bucket only.
GET
/
v1
/
therapeutic-candidates
List therapeutic candidates for a project
curl --request GET \
--url https://api.example.com/v1/therapeutic-candidates \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.example.com/v1/therapeutic-candidates"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.example.com/v1/therapeutic-candidates', 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.example.com/v1/therapeutic-candidates",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($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.example.com/v1/therapeutic-candidates"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.example.com/v1/therapeutic-candidates")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.example.com/v1/therapeutic-candidates")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"data": [
{
"antigen_ids": [
"a1b2c3d4-e5f6-7890-abcd-ef1234567890"
],
"created_at": "2026-04-23T14:15:00+00:00",
"drug_class": "naked_antibody",
"format": "mab",
"format_metadata": {},
"id": "c0f5e4b1-a7d2-4e0b-9f8c-1b2d3e4f5a6b",
"initial_variant_id": "9999eeee-8888-dddd-7777-cccc66665555",
"name": "anti-HER2 mab",
"object": "therapeutic_candidate",
"project_id": "7b4a3c0f-2e6d-4c7a-9e8f-1d3b5a2c4e6f",
"source_antibody_ids": [
"1111aaaa-2222-3333-4444-5555bbbbcccc"
],
"updated_at": "2026-04-23T14:15:00+00:00"
}
],
"has_more": true,
"next_cursor": "<string>"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}{
"code": "insufficient_credits",
"credit_balance": 0,
"credit_cost": 1,
"detail": "Humanization costs 1 credit; balance is 0.",
"instance": "/v1/jobs",
"request_id": "req_01JBX6Y6ZK6N8Q7YJ0F5VX2C3D",
"status": 402,
"title": "Insufficient credits",
"type": "https://docs.kallima.bio/errors/insufficient_credits"
}Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Query Parameters
Required range:
1 <= x <= 200⌘I