A side-by-side look at the Mailchimp MCP Server and Posylai — AI Email Builder MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Mailchimp MCP Server for marketing work as a local process; choose Posylai — AI Email Builder for marketing over a hosted endpoint. You can also run both side by side in one mcpServers block.
MAILCHIMP_API_KEY, MAILCHIMP_READ_ONLY, MAILCHIMP_DRY_RUN, MAILCHIMP_AUDIT_LOG, MAILCHIMP_TOOLS.read.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Marketing | Marketing |
| Quality signal | 59/100 · Good | 37/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | API key required | Not declared |
| Pricing | BYOK (pay the provider) | Not declared |
| Required env vars | MAILCHIMP_API_KEYMAILCHIMP_READ_ONLYMAILCHIMP_DRY_RUNMAILCHIMP_AUDIT_LOGMAILCHIMP_TOOLS | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 24 | 0 |
| Directory activity | 3 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 1 | Not listed |
| Full listing | View Mailchimp MCP Server | View Posylai — AI Email Builder |
readreporting and analytics only (~115 tools, ~29k tokens). A safe, lightweight default for exploration.No tool names declared yet. Check the project README from the listing page.
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
{
"mcpServers": {
"damientilman-mailchimp-mcp-server": {
"command": "uvx",
"args": [
"mailchimp-mcp"
],
"env": {
"MAILCHIMP_API_KEY": "YOUR_MAILCHIMP_API_KEY_HERE",
"MAILCHIMP_READ_ONLY": "YOUR_MAILCHIMP_READ_ONLY_HERE",
"MAILCHIMP_DRY_RUN": "YOUR_MAILCHIMP_DRY_RUN_HERE",
"MAILCHIMP_AUDIT_LOG": "YOUR_MAILCHIMP_AUDIT_LOG_HERE",
"MAILCHIMP_TOOLS": "YOUR_MAILCHIMP_TOOLS_HERE"
}
}
}
}
{
"mcpServers": {
"posylai-ai-email-builder": {
"url": "https://mcp.posylai.ru/mcp"
}
}
}