Mailsac MCP Server for Claude Code 9 tools — connect in under 2 minutes
Claude Code is Anthropic's agentic CLI for terminal-first development. Add Mailsac as an MCP server in one command and Claude Code will discover every tool at runtime. ideal for automation pipelines, CI/CD integration, and headless workflows via Vinkius.
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Vinkius Desktop App
The modern way to manage MCP Servers — no config files, no terminal commands. Install Mailsac and 2,500+ MCP Servers from a single visual interface.
# Your Vinkius token. get it at cloud.vinkius.com
claude mcp add mailsac --transport http "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
* 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
About Mailsac MCP Server
Connect your Mailsac account to any AI agent to automate your email testing and inbox management. This MCP server enables your agent to reserve private email addresses, retrieve and search for messages, and inspect HTML or plain text bodies directly from natural language interfaces.
Claude Code registers Mailsac as an MCP server in a single terminal command. Once connected, Claude Code discovers all 9 tools at runtime and can call them headlessly. ideal for CI/CD pipelines, cron jobs, and automated workflows where Mailsac data drives decisions without human intervention.
What you can do
- Inbox Oversight — List and manage your reserved (enhanced) addresses and custom domains
- Instant Retrieval — Fetch a list of messages received by any address in your account instantly
- Content Extraction — Retrieve sanitized HTML or raw plain text bodies to extract verification codes or links
- Inbox Maintenance — Permanently delete individual messages or clear entire inboxes via simple commands
- Infrastructure Management — Reserve new private addresses programmatically for isolated testing flows
- Global Search — Query messages across all your addresses using advanced search parameters (requires paid tier)
The Mailsac MCP Server exposes 9 tools through the Vinkius. Connect it to Claude Code in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Mailsac to Claude Code via MCP
Follow these steps to integrate the Mailsac MCP Server with Claude Code.
Install Claude Code
Run npm install -g @anthropic-ai/claude-code if not already installed
Add the MCP Server
Run the command above in your terminal
Verify the connection
Run claude mcp to list connected servers, or type /mcp inside a session
Start using Mailsac
Ask Claude: "Using Mailsac, show me...". 9 tools are ready
Why Use Claude Code with the Mailsac MCP Server
Claude Code provides unique advantages when paired with Mailsac through the Model Context Protocol.
Single-command setup: `claude mcp add` registers the server instantly. no config files to edit or applications to restart
Terminal-native workflow means MCP tools integrate seamlessly into shell scripts, CI/CD pipelines, and automated DevOps tasks
Claude Code runs headlessly, enabling unattended batch processing using Mailsac tools in cron jobs or deployment scripts
Built by the same team that created the MCP protocol, ensuring first-class compatibility and the fastest adoption of new protocol features
Mailsac + Claude Code Use Cases
Practical scenarios where Claude Code combined with the Mailsac MCP Server delivers measurable value.
CI/CD integration: embed Mailsac tool calls in your deployment pipeline to validate configurations or fetch secrets before shipping
Headless batch processing: schedule Claude Code to query Mailsac nightly and generate reports without human intervention
Shell scripting: pipe Mailsac outputs into other CLI tools for data transformation, filtering, and aggregation
Infrastructure monitoring: run Claude Code in a cron job to query Mailsac status endpoints and alert on anomalies
Mailsac MCP Tools for Claude Code (9)
These 9 tools become available when you connect Mailsac to Claude Code via MCP:
delete_inbox_message
Permanently remove a message from an inbox
get_html_message_body
Get the sanitized HTML body of a specific message
get_plain_text_body
Get the plain text body of a specific message
list_custom_domains
List custom domains linked to the account
list_inbox_messages
List messages in a specific inbox
list_reserved_addresses
List all reserved (enhanced) email addresses
release_reserved_address
Delete/Release a reserved email address
reserve_new_address
Reserve a specific email address
search_account_messages
Requires a paid Mailsac tier. Use query params like to, from, subject. Search for messages across all addresses
Example Prompts for Mailsac in Claude Code
Ready-to-use prompts you can give your Claude Code agent to start working with Mailsac immediately.
"List all my reserved email addresses in Mailsac."
"Fetch the plain text content of the last email sent to 'test-user@mailsac.com'."
"Reserve a new private address 'automation-flow@mailsac.com'."
Troubleshooting Mailsac MCP Server with Claude Code
Common issues when connecting Mailsac to Claude Code through the Vinkius, and how to resolve them.
Command not found: claude
npm install -g @anthropic-ai/claude-codeConnection timeout
Mailsac + Claude Code FAQ
Common questions about integrating Mailsac MCP Server with Claude Code.
How do I add an MCP server to Claude Code?
claude mcp add --transport http "" in your terminal. Claude Code registers the server and discovers all tools immediately.Can Claude Code run MCP tools in headless mode?
How do I list all connected MCP servers?
claude mcp in your terminal to see all registered servers and their status, or type /mcp inside an active Claude Code session.Connect Mailsac with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
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Connect Mailsac to Claude Code
Get your token, paste the configuration, and start using 9 tools in under 2 minutes. No API key management needed.