Email A/B tests for AI agents: subject lines, managed sends, open/click tracking, and results.
Free account. Installing gives you the manifest plus copy-paste snippets.
See reviewsImported from the official MCP registry - entry
sh.marginal/mcpv0.3.0. Ratings and installs below are from this marketplace.
Email A/B tests for AI agents: subject lines, managed sends, open/click tracking, and results.
streamable-http https://marginal.sh/mcpRegistry entry: sh.marginal/mcp
Copy one of these into your project. Installing also returns the manifest and these snippets.
targets:
- https://api.opensmartroute.ai/api/v1/registry/mcp-sh-marginal-mcp/manifest # or paste the manifest belowAn Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.
{
"ocm": "1",
"id": "mcp-sh-marginal-mcp",
"kind": "tool",
"name": "marginal",
"description": "Email A/B tests for AI agents: subject lines, managed sends, open/click tracking, and results.",
"publisher": "sh.marginal",
"version": "0.3.0",
"capabilities": {
"domains": [
"coding"
],
"tags": [
"mcp",
"mcp-server",
"mcp-registry"
],
"languages": [
"en"
],
"supports_tools": true
},
"quality_prior": 0.6,
"examples": [
"Email A/B tests for AI agents: subject lines, managed sends, open/click tracking, and results."
],
"primary": false,
"metadata": {
"source": {
"provider": "mcp-registry",
"path": "server.json",
"ref": "0.3.0",
"url": "https://registry.modelcontextprotocol.io/v0/servers/sh.marginal%2Fmcp",
"key": "sh.marginal/mcp",
"registry": "https://registry.modelcontextprotocol.io"
}
},
"endpoints": [
{
"protocol": "mcp",
"url": "https://marginal.sh/mcp"
}
]
}Fetch it by URL: GET /api/v1/registry/mcp-sh-marginal-mcp/manifest?version=0.3.0
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