Massive Flat Files S3 endpoint

REST discovered

Details

URL: https://files.massive.com
Docs: https://polygon.io/docs/flat-files/quickstart

Authentication

Massive S3 access key and secret key compound discovered Get key ↗

Authorization: aws_sigv4 <credential>

Ensure your account has Flat Files access, then open the API Keys dashboard to obtain your S3 Access Key and Secret Key for the Flat Files S3-compatible endpoint. Use them together with endpoint https://files.massive.com and bucket flatfiles in your S3 client configuration.