Independent review. IonBin has no partnership with Resend and was not paid for this page. Our evaluation is our own, based on public documentation and our research. Product names are trademarks of their owners and are used for identification only. How disclosure works.
Developer-friendly email API for transactional mail and broadcasts. IonBin's newsletter is set up to use Resend (not yet live).
Resend's transactional plans are Free (3,000 emails/month, 100 a day), Pro at $20/month (50,000 emails) and Scale at $90/month (100,000 emails), with extra emails at $0.90 per 1,000 on paid plans. Enterprise is custom. Marketing emails sent through Broadcasts are priced separately. Checked 2026-10-17. source ↗
How Resend connects to each AI platform: native connector or MCP, API through code the agent writes, browser control, or file upload.
| Platform | MCP / connector | API (agent-written code) | Browser | Upload / export |
|---|---|---|---|---|
| Claude (incl. Claude Code) | Not documented Resend has an official MCP server and Claude (incl. Claude Code) supports MCP, but Resend's docs don't name this pairing. Auth setup may differ. Resend MCP docs ↗Claude (incl. Claude Code) MCP docs ↗ | Confirmed Claude (incl. Claude Code) can run code; Resend publishes an API. Resend API ↗Claude (incl. Claude Code) docs ↗ | Confirmed Claude Code with the Claude in Chrome extension (Chrome, Edge and other Chromium browsers) Claude (incl. Claude Code) browser docs ↗ | Confirmed Export from Resend, then works on the files in your project; chat accepts attachments Claude (incl. Claude Code) docs ↗ |
| OpenAI Codex | Not documented Resend has an official MCP server and OpenAI Codex supports MCP, but Resend's docs don't name this pairing. Auth setup may differ. Resend MCP docs ↗OpenAI Codex MCP docs ↗ | Confirmed OpenAI Codex can run code; Resend publishes an API. Resend API ↗OpenAI Codex docs ↗ | Confirmed Only in the ChatGPT desktop app; not in the Codex CLI or IDE extension OpenAI Codex browser docs ↗ | Confirmed Export from Resend, then works on local repositories OpenAI Codex docs ↗ |
| Google Antigravity | Not documented Resend has an official MCP server and Google Antigravity supports MCP, but Resend's docs don't name this pairing. Auth setup may differ. Resend MCP docs ↗Google Antigravity MCP docs ↗ | Confirmed Google Antigravity can run code; Resend publishes an API. Resend API ↗Google Antigravity docs ↗ | Confirmed Browser subagent via /browser, documented as an Antigravity App feature; the IDE has separate browser docs Google Antigravity browser docs ↗ | Confirmed Export from Resend, then works on local projects and worktrees Google Antigravity docs ↗ |
Confirmed means both the tool's and the platform's official docs describe that route (links in the cell); IonBin has not tested every pairing. Not documented means it may work, but no official docs describe that route end to end. Checked Oct 17, 2026.
| Level | Status | Detail / source |
|---|---|---|
| Native connector / MCP | Yes | Official docs ↗ |
| API / CLI | Yes | Official docs ↗ |
| Browser-only | No | Web app; also reachable programmatically |
| Bulk upload / import | Yes | Send up to 100 emails in one batch call (https://resend.com/docs/api-reference/emails/send-batch-emails) |
Recorded Oct 17, 2026. Setup and plan limits vary; check the vendor's docs. How levels are assigned.
Ops & admin automation Notifications
Dev, web & IT Email
Via its official MCP server, from MCP-capable platforms such as ChatGPT, Claude, Gemini (Google), Google Antigravity, OpenAI Codex.
Via its API, through automation hubs: Gumloop, Make, n8n, Zapier.
No long-form review yet. IonBin’s founder uses this tool, so a first-hand review is planned.
Newsletter platform with growth and monetization tools such as referrals, an ad network and paid subscriptions. The beehiiv MCP (Lite plan and up) lets Claude or ChatGPT analyze your content, audience and performance.
Email marketing for creators, with automations, landing pages and digital product sales. The Kit MCP, included from the Creator plan, lets AI clients read and write subscribers, sequences, broadcasts and tags, and asks for confirmation before sends or deletes.
