Draft, test, and send Mailchimp campaigns straight from your MCP client — with audience management, subscriber CRUD, and post-send analytics behind safe-by-default send gates. STDIO or Streamable HTTP.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add mailchimp-server-cyanheads --env MAILCHIMP_API_KEY='<MAILCHIMP_API_KEY>' -- npx -y @cyanheads/mailchimp-mcp-server~/.codex/config.toml
[mcp_servers.mailchimp-server-cyanheads]
command = "npx"
args = ["-y", "@cyanheads/mailchimp-mcp-server"]
env = { MAILCHIMP_API_KEY = "<MAILCHIMP_API_KEY>" }
# codex mcp add mailchimp-server-cyanheads --env MAILCHIMP_API_KEY='<MAILCHIMP_API_KEY>' -- npx -y @cyanheads/mailchimp-mcp-server~/.cursor/mcp.json
{
"mcpServers": {
"mailchimp-server-cyanheads": {
"command": "npx",
"args": [
"-y",
"@cyanheads/mailchimp-mcp-server"
],
"env": {
"MAILCHIMP_API_KEY": "<MAILCHIMP_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"mailchimp-server-cyanheads": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cyanheads/mailchimp-mcp-server"
],
"env": {
"MAILCHIMP_API_KEY": "<MAILCHIMP_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"mailchimp-server-cyanheads": {
"command": "npx",
"args": [
"-y",
"@cyanheads/mailchimp-mcp-server"
],
"env": {
"MAILCHIMP_API_KEY": "<MAILCHIMP_API_KEY>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"mailchimp-server-cyanheads": {
"command": "npx",
"args": [
"-y",
"@cyanheads/mailchimp-mcp-server"
],
"env": {
"MAILCHIMP_API_KEY": "<MAILCHIMP_API_KEY>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"mailchimp-server-cyanheads": {
"command": "npx",
"args": [
"-y",
"@cyanheads/mailchimp-mcp-server"
],
"env": {
"MAILCHIMP_API_KEY": "<MAILCHIMP_API_KEY>"
}
}
}
}Environment variables
MAILCHIMP_API_KEY
Replace the placeholders with your own credentials and keep them out of version control.