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Detect whether a company runs cold outbound, on what stack, and from which sending domains.
About
Detect whether a company runs cold outbound, on what stack, and from which sending domains.
Security Report
This MCP server is well-structured and secure. It properly requires an APIFY_TOKEN environment variable for authentication, validates all inputs using Zod schema validation, and safely constructs API calls without code injection risks. The server has appropriate error handling and provides clear feedback for various failure modes. Permissions are well-scoped to the server's purpose of fingerprinting outbound infrastructure via the Apify API. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.
3 files analyzed · 7 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: APIFY_TOKEN
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"com-mambabuilt-mcp-outbound-infrastructure-fingerprint": {
"env": {
"APIFY_TOKEN": "your-apify-token-here"
},
"args": [
"-y",
"@mambalabsdev/mcp-outbound-infrastructure-fingerprint"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
Outbound Infrastructure Fingerprint MCP Server
MCP server for the Mamba Labs Outbound Infrastructure Fingerprint actor on Apify.
Give it a company domain. It tells your agent whether that company runs cold email outbound, and on what stack.
Tool
fingerprint_outbound_infrastructure
| Input | Type | Notes |
|---|---|---|
domain | string | One company domain. |
domains | string[] | Batch. Takes precedence over domain. |
scan_sending_domains | boolean | Default true. The strongest signal and the slowest step. |
sending_domain_depth | deep | standard | Default deep (.com .co .io .net .org). |
check_deliverability | boolean | Default false. Adds a separately billed blacklist check and health score. |
skipCache | boolean | Ignore the 7 day result cache. |
Returns a flat row per domain: runs_outbound (program, light, none, unknown), confidence, sending_domains[], registration_clusters[], sending_platforms[], inbox_provider, warmup_detected, infrastructure_vendors[], spf_status, dkim_status, dmarc_policy, and an evidence[] array of quotable strings.
What it actually detects
A real outbound program does not send from the domain the business runs on. It buys lookalikes (getcompany.com, company-mail.com, trycompany.co), gives them their own mail tenant, and redirects their web root at the real site. That redirect is the attribution handle, and finding those domains is the part nobody else does.
Measured on nine live domains: 6 of 6 detected on companies that demonstrably run outbound, 0 false positives of 3 on controls.
Two honest limits. When the brand token is an ordinary English word (Gong, Clay, Ramp), lookalike patterns collide with unrelated businesses that legitimately own them; the actor sets brand_is_common_word and caps confidence rather than reporting a confident none. And sending-platform recall is partial by design: Instantly, Smartlead, Lemlist, Apollo and Salesloft connect over OAuth to a customer's own mailbox and publish no SPF include host at all, so an empty sending_platforms tells you little while a populated one is solid.
Setup
{
"mcpServers": {
"mamba-outbound-infrastructure-fingerprint": {
"command": "npx",
"args": ["-y", "@mambalabsdev/mcp-outbound-infrastructure-fingerprint"],
"env": { "APIFY_TOKEN": "your-apify-token" }
}
}
}
Get a token at console.apify.com/account/integrations. Read-only; consumes Apify credits per domain analyzed.
Also available
This tool is also exposed by the GTM Suite umbrella server, alongside the rest of the Mamba Labs GTM actors, if you would rather run one server than many.
Built by Mamba Labs.
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