0n3
MCP servers · Google Apps Script · connector · GPT action

Connect ChatGPT to Google Apps Script

One line gives ChatGPT your Google Apps Script account as tools: 8 endpoints, projects, deploy, called with your own connection. No key in the prompt, a receipt for every call, revoke ChatGPT's access alone any time.

Get the line for ChatGPTConnect Google Apps Script first

Three steps

  1. Create a free 0n3 account and connect Google Apps Script. Paste a key or sign in; it lands in your vault, encrypted.
  2. Install 0n3 into ChatGPT. A custom connector in Developer mode, or an Action on a custom GPT from the OpenAPI spec.
  3. Ask ChatGPT: whoami. Then: "Create a project in Google Apps Script".
Custom connector (needs Developer mode)
  1. Settings → Connectors (or Apps) → Advanced → Developer mode on
  2. Create → name 0n3 · MCP server URL https://0n3.app/mcp · Authentication: OAuth
  3. Finish the sign-in with your 0n account
  4. Enable the connector in a chat and ask: "whoami"

ChatGPT connectors cannot send a static header, so 0n3 signs you in through its OAuth door (dynamic client registration is on).

The line above carries a placeholder; 0n3.app/install mints a real key named for ChatGPT and fills it in.

What ChatGPT can then do in Google Apps Script

Projects · Script projects and their files8
Create a projectPOST /projects
Get a projectGET /projects/{scriptId}
Get a contentGET /projects/{scriptId}/content
Update a contentPUT /projects/{scriptId}/content
Create a versionPOST /projects/{scriptId}/versions
List deploymentsGET /projects/{scriptId}/deployments
Create a deploymentPOST /projects/{scriptId}/deployments
Update a deploymentPUT /projects/{scriptId}/deployments/{deploymentId}
Deploy · Versions and web-app deployments0
Versions and web-app deployments

Google Apps Script in other AI clients

Claude Code + Google Apps ScriptMCP server + skillClaude (desktop & claude.ai) + Google Apps ScriptconnectorCodex CLI + Google Apps ScriptMCP serverGemini CLI + Google Apps ScriptMCP serverCursor + Google Apps ScriptMCP serverVS Code (Copilot) + Google Apps ScriptMCP serverWindsurf + Google Apps ScriptMCP server

ChatGPT with other apps

Hostinger363 endpointsTelegram132 endpointsPipedrive95 endpointsResend67 endpointsSquare57 endpointsLinkedIn50 endpointsSlack45 endpointsFigma32 endpointsCloudConvert32 endpointseBay25 endpointsCRM24 endpointsQuickBooks21 endpoints