通过 Gemini API 中的 Webhooks 减少长时任务的摩擦与延迟

We're making it easier and more efficient to build complex, long-running agentic applications with the Gemini API Webhooks.

Lucia Loher

Product Manager, Gemini API

Hussein Hassan Harrirou

Engineering, Gemini API

Today, we're making it easier and more efficient to build complex, long-running agentic applications with the Gemini API. We are introducing event-driven Webhooks, a push-based notification system that eliminates the need for inefficient polling.

As Gemini shifts toward agentic workflows and high-volume processing — like Deep Research, long video generation, or processing thousands of prompts via the Batch API — operations can take minutes or even hours. Until now, developers had to rely on continuous polling (e.g., repeatedly callingGEToperations) to check if a job was completed.

Now, the Gemini API can simply push a real-time HTTP POST payload to your server the instant a task finishes.

We’ve built this with reliability and security in mind. Our implementation strictly adheres to the Standard Webhooks specification. Every request is signed using webhook-signature, webhook-id, and webhook-timestamp headers, ensuring idempotency and preventing replay attacks. We also guarantee "at-least-once" delivery with automatic retries for up to 24 hours.

How it works

You can configure webhooks globally at the project level (secured via HMAC), or override them dynamically on a per-request basis to route specific jobs (secured via JWKS).

Here's a quick example of how you can dynamically configure a webhook for a batch task using the Python SDK:

from google import genai
from google.genai import types

client = genai.Client()

file_batch_job = client.batches.create(
    model="gemini-3-flash-preview",
    src=inline_requests,
    config={
        "display_name": "My Setup",
        "webhook_config": {
            "uris": ["https://my-api.com/gemini-webhook-dynamic"],
            "user_metadata": {"job_group": "nightly-eval", "priority": "high"},
        },
    },
)

print(f"Created batch job: {file_batch_job.name}")

Get started today

This feature is available now for all developers using the Gemini API:

• Read the guide: Check out the Webhooks documentation to explore the full event catalog and learn how to secure your endpoints.
• Hands-on practice: We've prepared a comprehensive Cookbook to help you build an end-to-end integration with webhooks.