Continue Task

curl -X POST 'https://agent.blackbox.ai/api/v1/tasks/a1b2c3d4-e5f6-7890-abcd-ef1234567890/continue' \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "prompt": "Refactor the authentication logic to use middleware",
    "model": "blackboxai/anthropic/claude-opus-4.7"
  }'

const API_KEY = "YOUR_API_KEY";
const PREVIOUS_RUN_ID = "a1b2c3d4-e5f6-7890-abcd-ef1234567890";

const response = await fetch(
  `https://agent.blackbox.ai/api/v1/tasks/${PREVIOUS_RUN_ID}/continue`,
  {
    method: "POST",
    headers: {
      Authorization: `Bearer ${API_KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      prompt: "Now add unit tests for the new payment module",
    }),
  }
);

const data = await response.json();
console.log(`New runId: ${data.runId}`);
console.log(`ChatId: ${data.chatId}`);

// Poll the new run for completion
const DONE = ["completed", "failed", "cancelled", "interrupted"];
while (true) {
  const statusRes = await fetch(
    `https://agent.blackbox.ai/api/v1/tasks/${data.runId}/status`,
    { headers: { Authorization: `Bearer ${API_KEY}` } }
  );
  const s = await statusRes.json();
  console.log(`${s.status} — ${s.progress}%`);
  if (DONE.includes(s.status)) break;
  await new Promise(r => setTimeout(r, 3000));
}

import requests
import time

API_KEY = "YOUR_API_KEY"
PREVIOUS_RUN_ID = "a1b2c3d4-e5f6-7890-abcd-ef1234567890"

headers = {
    "Authorization": f"Bearer {API_KEY}",
    "Content-Type": "application/json",
}


response = requests.post(
    f"https://agent.blackbox.ai/api/v1/tasks/{PREVIOUS_RUN_ID}/continue",
    headers=headers,
    json={"prompt": "Now add unit tests for the new payment module"},
)
data = response.json()
new_run_id = data["runId"]
print(f"New runId: {new_run_id}")

# Poll until done
DONE = {"completed", "failed", "cancelled", "interrupted"}
while True:
    s = requests.get(
        f"https://agent.blackbox.ai/api/v1/tasks/{new_run_id}/status",
        headers={"Authorization": f"Bearer {API_KEY}"},
    ).json()
    print(f"{s['status']} — {s['progress']}%")
    if s["status"] in DONE:
        break
    time.sleep(3)

package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io"
    "net/http"
)

func main() {
    apiKey := "YOUR_API_KEY"
    previousRunId := "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
    url := fmt.Sprintf("https://agent.blackbox.ai/api/v1/tasks/%s/continue", previousRunId)

    body, _ := json.Marshal(map[string]string{
        "prompt": "Now add unit tests for the new payment module",
    })

    req, _ := http.NewRequest("POST", url, bytes.NewBuffer(body))
    req.Header.Set("Authorization", "Bearer "+apiKey)
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, _ := client.Do(req)
    defer resp.Body.Close()

    respBody, _ := io.ReadAll(resp.Body)
    fmt.Println(string(respBody))
}

{
  "error": "Task not found"
}

{
  "error": "prompt: prompt is required"
}

{
  "error": "Claude Agent requires a Pro subscription. Please upgrade at https://www.blackbox.ai/pricing"
}