freeapis

Smartsheet

Allows you to programmatically access and Smartsheet data and account information

Authentication
OAuth
HTTPS
Yes
CORS
No
Category
Business
Documentation / URL
https://smartsheet.redoc.ly/

Overview

Smartsheet provides spreadsheet APIs — OAuth-based (unauthenticated requests return 403, verified).

Quick Start

Sheets (needs OAuth):

curl "https://api.smartsheet.com/2.0/sheets" \
  -H "Authorization: Bearer YOUR_TOKEN"
{ "errorCode": 1004, "message": "You are not authorized to perform this action." }

Authentication

  • Smartsheet app → OAuth 2.0 token.
  • Send it as Authorization: Bearer (missing → 403, verified).

Rate Limits & Notes

  • Free with app registration (check the docs).
  • Sheets, rows, reports.

FAQ

Is Smartsheet free? Free tier with limits (check the docs).

Why 403? An OAuth token is required (verified).

What’s the auth style? OAuth 2.0 Bearer.

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