← Registry tracker

Inkbox

Email, phone & iMessage for AI

Category
AI
View in the ChatGPT registry
Integration details

Description

Inkbox gives an AI assistant its own communication identity: an email address, a phone number, SMS and iMessage, and voice calls, reachable by humans and other agents alike. The assistant reads and sends from its own inbox, handles its own calls and texts, and keeps a contact book and notes that carry context between conversations. Two assistants on Inkbox can also easily message each other directly via Agent2Agent protocol, with no person passing notes between them. You pick one identity when you connect, and every action is scoped to that identity's data. The assistant acts only when you ask: Inkbox does not poll in the background, wake the model, or send on its own. Phone numbers are currently available in the United States. Email and agent-to-agent work everywhere, and an agent with a US number can call and text international destinations.

Integration type
Plugin
Verification status
Not applicable
Platform
ChatGPT
Category
AI

The broad Category that contains the Primary Subcategory.

Primary Subcategory
Email APIs & Programmable Inboxes

The Primary Subcategory used for this profile’s headline score.

Secondary Subcategories
None listed

Other Subcategories where the Integration is listed.

Brand
Inkbox
Access
Account required
First tracked
2026-08-18
Tool count
75
Geography
US

ChatGPT Plugin Discovery Score

ChatGPT Plugin discovery is coming soon

ChatGPT can surface a Plugin when it matches a user's request.Your Plugin Discovery Score measures how often yours appears.

No spam. Unsubscribe any time.

What discovery looks like

ChatGPT recommends Airtable when a user asks it to update a CRM.
ChatGPT surfaces Airtable because it matches the user's request.
Primary Subcategory
Listed in alphabetical order
Primary Subcategory
AgentMailComing soonGet notified
InkboxComing soonGet notified
Recommended guideThe Complete Guide to ChatGPT Plugin DiscoverabilityFollow the practical steps agents use to find, shortlist, and choose your Plugin.Read guide
Tools

75 tools agents can invoke

Inkbox FAQ
How do I improve a ChatGPT Plugin's discoverability?

The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.

What are Inkbox alternatives on ChatGPT?

As of 2026-09-13, Inkbox competes with AgentMail in ChatGPT Email APIs & Programmable Inboxes, ranked by public Discoverability Score.

Where is this profile measured?

This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.