MCP servers · Postmark · MCP server
Connect Windsurf to Postmark
One line gives Windsurf your Postmark account as tools: 9 endpoints, send email, templates, bounces, called with your own connection. No key in the prompt, a receipt for every call, revoke Windsurf's access alone any time.
Three steps
- Create a free 0n3 account and connect Postmark. Paste a key or sign in; it lands in your vault, encrypted.
- Install 0n3 into Windsurf. The mcp_config.json block.
- Ask Windsurf: whoami. Then: "Send an email in Postmark".
Write it yourself · ~/.codeium/windsurf/mcp_config.json
{
"mcpServers": {
"0n3": {
"serverUrl": "https://0n3.app/mcp",
"headers": {
"Authorization": "Bearer <your 0n token>"
}
}
}
}The line above carries a placeholder; 0n3.app/install mints a real key named for Windsurf and fills it in.
What Windsurf can then do in Postmark
Send email · Send transactional emails3
Send an email
POST /emailSend a batch
POST /email/batchSend a template
POST /email/withTemplateTemplates · Manage email templates3
List templates
GET /templatesGet a template
GET /templates/{templateId}Create a template
POST /templatesBounces · Track bounces and deliverability1
List bounces
GET /bouncesMore · Everything else this app exposes.2
Get delivery stats
GET /deliverystatsGet a server
GET /serverPostmark in other AI clients
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