MCP servers · SendGrid · MCP server
Connect Cursor to SendGrid
One line gives Cursor your SendGrid account as tools: 5 endpoints, send email, contacts, templates, called with your own connection. No key in the prompt, a receipt for every call, revoke Cursor's access alone any time.
Three steps
- Create a free 0n3 account and connect SendGrid. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Cursor. One-click install link, or the mcp.json block.
- Ask Cursor: whoami. Then: "Send an email in SendGrid".
One-click install
The line above carries a placeholder; 0n3.app/install mints a real key named for Cursor and fills it in.
What Cursor can then do in SendGrid
Send email · Send transactional emails1
Send an email
POST /mail/sendContacts · Manage email contacts and lists2
Add contacts
PUT /marketing/contactsSearch contacts
POST /marketing/contacts/searchTemplates · List email templates1
List templates
GET /templatesMore · Everything else this app exposes.1
List lists
GET /marketing/listsSendGrid in other AI clients
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