Sazabi
MCP connectors

Resend

Give the Sazabi agent tools to send transactional and broadcast emails and manage domains, contacts, and audiences.

All Resend integration capabilities

About

This is an MCP connector that gives the Sazabi agent tools from Resend's hosted MCP server at https://mcp.resend.com/mcp. Sazabi stores your Resend API key securely and sends it as the Authorization: Bearer token to Resend's MCP endpoint. Once connected, the agent can send emails and manage domains, contacts, and audiences.

What the agent can do:

  • Send transactional and broadcast emails
  • Manage domains (create, verify, and update)
  • Manage contacts and audiences
  • Retrieve send and delivery status information

Prerequisites

  • A Resend account
  • A Resend API key (re_...) from the Resend dashboard
  • A verified sending domain

Set up in the dashboard

Configure connectors in the dashboard under Settings > MCP connectors.

Add your key

Create or copy an API key from the Resend dashboard. Choose the key's permission to match what you want the agent to do: Sending access (send emails only, the safer choice) or Full access (also manage domains, contacts, and audiences). Sazabi stores it securely and sends it as the Authorization: Bearer token to Resend's MCP endpoint (https://mcp.resend.com/mcp).

Set up with the CLI

Resend authenticates with a Resend API key. With the Sazabi CLI installed and authenticated (see sazabi mcp-connectors reference), connect it in one command, passing the credential as a header:

sazabi mcp-connectors connect resend --header "Authorization=Bearer <api-key>"

The CLI connects to the MCP server at once and prints the connection with the tools it discovered; a credential the server rejects is reported, and the connection is left needing attention. Use NAME=@<file> to read a value from a file, or --header-file <file.json> for a JSON object of header names and values. To rotate the stored credentials later, use sazabi mcp-connectors update-credentials <connection-id>; find the connection ID with sazabi mcp-connectors list.

Verify

Open the connector's connection page under Settings > MCP connectors and confirm Sazabi lists the tools it discovered. Then, in a thread, ask the agent to use one of those tools and confirm it runs. If no tools appear, confirm the key is correct and your sending domain is verified.

Troubleshooting

No tools discovered — Confirm the API key is valid and has not been revoked. Re-enter it from Settings > MCP connectors.

Connection shows needs attention — The authorization or key may have expired or been revoked; reconnect from Settings > MCP connectors.

Further reading