- Brand
- AgentInbox
- Category
- Developer Tools
- Primary Subcategory
- Email APIs & Programmable Inboxes
Integration details
Description
An existing AgentInbox account is required, with features subject to its plan limits. Search domain availability, then prepare a registration order after explicit confirmation. The customer completes payment on agentinbox.pro using the returned checkout link; the plugin does not collect payment details or pay on their behalf. Manage domains, inspect inbound-delivery status, configure signed webhooks and forwarding, send authenticated email, and deploy versioned static Apex sites. Intended for developers and agent builders. No human mailbox, scheduled sending, or unrestricted DNS administration.
- Integration type
- Plugin
- Verification status
- Not applicable
- Platform
- ChatGPT
- Primary Subcategory
- Email APIs & Programmable Inboxes
- Secondary Subcategories
- None listed
- Brand
- AgentInbox
- Access
- Account required
- First tracked
- 2026-10-30
- Tool count
- 36
- Market
- US
The Primary Subcategory used for this profile’s headline score.
Other Subcategories where the Integration is listed.
Your score is coming
ChatGPT now suggests Plugins on its own when they match a user's request.Your Plugin Discovery Score measures how often yours appears, and it will show here as soon as it’s ready.
What discovery looks like

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Competing in ChatGPT Email APIs & Programmable Inboxes
View Category36 tools agents can invoke
AgentInbox ChatGPT Plugin FAQ
How the directory, categories and Discoverability Score work.
Read the methodologyHow do I improve AgentInbox's ChatGPT Plugin 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 AgentInbox alternatives on ChatGPT?
As of 2026-10-30, AgentInbox competes with AgentiSend, AgentMail, Cooper Email, inboxmcp, Inkbox, MillionSend, Prontuno, Samva and 1 more 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.