How to Use the MailerCheck MCP in Windsurf

Q: How does Cascade check my MailerCheck credit balance?

It calls the getaccountinfo tool. You just ask your agent how many credits you have left, and it fetches the live number from the API.

Windsurf's Cascade autonomously cleans your email lists and checks balances using the MailerCheck MCP server.

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Connect MailerCheck MCP to Windsurf

Create your Vinkius account to connect MailerCheck to Windsurf and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup MailerCheck with Windsurf

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Claude

Perplexity

Autonomous List Hygiene in Windsurf

Cascade doesn't just check one email and stop. You hand it a messy CSV of leads, and it immediately figures out the next steps. It bundles those addresses up and fires off a `create_verification_batch` request through the MCP connection. While that processes, your agent can go work on other files in your workspace. Later, Cascade autonomously calls `get_batch_results` to pull the clean data back in and format your final list. You don't have to prompt it twice.

Real-Time Validation During Development

Building a custom signup form requires testing edge cases. Instead of leaving your IDE to check if an email format actually passes deliverability standards, you just ask Cascade to run it. The agent uses `verify_single_email` to hit the API instantly. It reads the response, tells you if the domain is a known burner, and adjusts your form validation logic right there in the editor.

Credit Monitoring and Batch Tracking

Running out of API credits mid-development breaks workflows. Cascade prevents this by checking your limits before starting massive jobs. It hits `get_account_info` to read your current balance. If you have enough credits, it proceeds. If you need to find an old job, it runs `list_verification_batches` and pulls the historical data directly into your terminal output.

Setup guide

Set up MailerCheck MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
2

Add the MailerCheck MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my MailerCheck payment history." If connected, Cascade will call the MailerCheck tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

{
  "mcpServers": {
    "mailercheck-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by MailerCheck. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

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Common questions about MailerCheck MCP in Windsurf

Open Settings, navigate to Cascade, and find the MCP Servers UI. You can also edit your local configuration file directly. Add the server details and click Refresh in the panel.

Yes. Cascade reads your intent and executes the required tools without asking. Tell it to clean a list, and it handles the batch creation and result fetching on its own.

It calls the get_account_info tool. You just ask your agent how many credits you have left, and it fetches the live number from the API.

Cascade reads the API response and updates your code or data files accordingly. If it spots a hard bounce, it can automatically remove that address from your mock data.

The only data transmitted is the specific email string you explicitly tell the agent to check. Vinkius runs this connection in an isolated V8 sandbox, destroying the environment immediately after the API call finishes.

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