3,400+ MCP servers ready to use
Vinkius

Bring Cold Outreach
to Claude Desktop

Learn how to connect Mailshake to Claude Desktop and start using 12 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.

Add ProspectsGet Campaign DetailsGet Team DetailsGet User ProfileList Campaign RecipientsList CampaignsList Engagement ActivityList Sales LeadsPause CampaignPause ProspectResume CampaignUpdate Lead Status
Use with Your AI Agent
Ask AI about this MCP Server
ChatGPT Claude Perplexity

What is the Mailshake MCP Server?

Connect your Mailshake account to any AI agent and manage sales outreach through natural conversation.

What you can do

  • Campaign Management — Create and manage outreach campaigns
  • Lead Tracking — Browse leads with engagement status and activity
  • Sequence Management — Configure multi-step email sequences
  • Reply Monitoring — Track replies, opens, and click activity
  • Team Performance — Monitor team outreach metrics and quotas
  • Lead Lists — Import and manage prospect lists

How it works

1. Subscribe to this server
2. Enter your Mailshake API Key
3. Start managing outreach from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • SDRs — manage outbound campaigns and track engagement
  • Sales Teams — monitor reply rates and lead quality
  • Growth — scale cold outreach with analytics

Built-in capabilities (12)

add_prospects

Add new prospects

get_campaign_details

Get campaign info

get_team_details

Get account team

get_user_profile

Get profile info

list_campaign_recipients

List recipients

list_campaigns

List cold email campaigns

list_engagement_activity

Get open/click activity

list_sales_leads

List qualified leads

pause_campaign

Stop campaign sending

pause_prospect

Stop outreach for user

resume_campaign

Resume campaign sending

update_lead_status

g., Reply, Won, Lost, Ignored). Set lead stage

Why Claude Desktop?

Claude Desktop is the definitive way to connect Mailshake to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 12 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

  • —

    Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

  • —

    Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

  • —

    Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

  • —

    Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

See it in action

Mailshake in Claude Desktop

AI Agent→Vinkius
High Security·Kill Switch·Plug and Play
Why Vinkius

Mailshake and 3,400+ other MCP servers. One platform. One governance layer.

Teams that connect Mailshake to Claude Desktop through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.

3,400+MCP Servers ready
<40msCold start
60%Token savings
Raw MCP
Vinkius
Server catalogFind and host yourself3,400+ managed
InfrastructureSelf-hostedSandboxed V8 isolates
Credential handlingPlaintext in configVault + runtime injection
Data loss preventionNoneConfigurable DLP policies
Kill switchNoneGlobal instant shutdown
Financial circuit breakersNonePer-server limits + alerts
Audit trailNoneEd25519 signed logs
SIEM log streamingNoneSplunk, Datadog, Webhook
HoneytokensNoneCanary alerts on leak
Custom domainsNot applicableDNS challenge verified
GDPR complianceManual effortAutomated purge + export
Use with Your AI Agent View step-by-step setup guide for Claude Desktop →
Enterprise Security

Why teams choose Vinkius for Mailshake in Claude Desktop

The Mailshake MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 12 tools execute in hardened sandboxes optimized for native MCP execution.

Your AI agents in Claude Desktop only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

Use with Your AI Agent View full Mailshake details →
Mailshake
Fully ManagedVinkius Servers
60%Token savings
High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

The Vinkius Advantage

How Vinkius secures Mailshake for Claude Desktop

Every tool call from Claude Desktop to the Mailshake MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

Can I manage outreach campaigns and sequences?

Yes. Create campaigns with multi-step sequences, personalize emails, and track engagement through each step.

02

How does Mailshake authentication work?

Mailshake uses HTTP Basic Auth with the API Key against api.mailshake.com/2017-04-01.

03

Can I track replies and lead engagement?

Yes. Monitor replies, categorize as interested/not interested, and track opens and clicks per lead.

04

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

05

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

06

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

07

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

08

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.

09

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

10

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

11

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.