Agent with S3 Pre-signed URL Input

Pass files from AWS S3 to a Gemini agent using a pre-signed URL with File(url=…).

Code

s3_url_file_input.py

"""S3 pre-signed URL input with Gemini.

Pass files from S3 using pre-signed URLs without downloading.
Supports files up to 100MB. Requires Gemini 3.x models.
"""

import boto3
from agno.agent import Agent
from agno.media import File
from agno.models.google import Gemini

s3_client = boto3.client("s3")
presigned_url = s3_client.generate_presigned_url(
    "get_object",
    Params={
        "Bucket": "agno-public",
        "Key": "recipes/ThaiRecipes.pdf",
    },
    ExpiresIn=3600,
)

agent = Agent(
    model=Gemini(id="gemini-3.5-flash"),
    markdown=True,
)

agent.print_response(
    "What is this document about? Answer in one sentence.",
    files=[
        File(
            url=presigned_url,
            mime_type="application/pdf",
        )
    ],
)

Usage

1. Set up your virtual environment

   Mac

   uv venv --python 3.12
   source .venv/bin/activate
   
2. Set your credentials

   export GOOGLE_API_KEY=xxx
   export AWS_ACCESS_KEY_ID=xxx
   export AWS_SECRET_ACCESS_KEY=xxx
   
3. Install dependencies

   uv pip install -U google-genai agno boto3
   
4. Run Agent

   Save the code above as s3_url_file_input.py, then run:

   python s3_url_file_input.py