OpenAI · Custom GPTs · API Actions
ChatGPT WhatsApp AI agent for your inbox.
ChatGPT talks to InstantReply two ways. Build a Custom GPT with our OpenAPI spec. Or call the REST API from Actions in your own GPT. Both ship Instagram DMs and WhatsApp replies.
Custom GPT → Configure → Actions → Import from URL
https://instantreply.up.railway.app/openapi.json
# Auth: API Key
# Auth Type: Custom
# Custom Header Name: Authorization
# Value: Bearer ir_live_YOUR_KEY_HERESwap ir_live_YOUR_KEY_HERE for your key from the dashboard. Restart ChatGPT. Try it.
What you can ask
Three things ChatGPT can do today.
- 01
A Custom GPT for your sales team
Build it once. Your team uses it from chat. They ask: who messaged us today? The GPT pulls Instagram DMs and WhatsApp chats in one view.
- 02
Send WhatsApp replies from Actions
Pick the send-message action. ChatGPT asks before each send. You stay in the loop. Your team gets a WhatsApp AI agent without writing code.
- 03
Analytics on demand
Ask: what was my reply time last week. ChatGPT pulls it from the analytics endpoint and gives you a clean summary.
Set up · 30 seconds
Three steps. No code.
- 01
Get a key
Open the dashboard. Pick scopes. Copy the key once.
- 02
Paste the block
Drop the snippet into
Custom GPT → Configure → Actions → Import from URL. Save. - 03
Restart and ask
Quit ChatGPT and reopen it. Ask: show me open chats from today.
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