API Tools

qualisend.com

Provides email address verification tools to check syntax, domain, disposable/role, typo, and mailbox reachability for individual or bulk addresses.

1 endpoint12 known toolsFirst detected August 14, 2026Last detected August 14, 2026

ENDPOINT 1

https://app.qualisend.com/api/mcp

No auth detected

MCP server metadata

Name: Qualisend
Version: 1.0.0

Capabilities

tools

Server instructions

Verify and clean email addresses with Qualisend. Core tools: verify_email (one address), verify_emails (a batch, up to 50), verify_list (a large list, up to 1000, async — returns a job_id to poll), get_verification (result/progress by job_id), get_credit_balance. The Pro plan adds deliverability tools: check_domain (is a domain set up so its email reaches the inbox), generate_dns_record (create SPF/DMARC/BIMI/MTA-STS records), analyze_email_header (why a message was slow or went to spam), check_disposable, check_typo, and lookup_smtp_code (explain a mail-server error code). check_blacklist (is a domain/IP on email blacklists) needs the Blacklist Monitoring add-on. When a user asks what you can do, explain these in simple, everyday terms — avoid technical jargon.

Known tools 12

verify_email

Verify a single email address — syntax, domain/MX, disposable + role detection, typo suggestion, and mailbox reachability.

Potential side effects

verify_emails

Verify up to 50 email addresses at once and get a deliverability verdict for each, synchronously.

Potential side effects

verify_list

Verify a large list of up to 1000 email addresses.

Potential side effects

get_credit_balance

Return the number of verification credits available in your Qualisend workspace.

Inferred read-only

get_verification

Look up the status and result of a verification you started, by job_id (returned from verify_email/verify_emails).

Inferred read-only

check_domain

Check whether a domain is set up to send email that reaches the inbox — its mail servers plus its SPF and DMARC sender-authentication, and what's missing.

Potential side effects

generate_dns_record

Create the exact DNS setting a domain needs so its email is trusted and harder to spoof — SPF, DMARC, BIMI, or MTA-STS.

Potential side effects

analyze_email_header

Read the hidden technical details of an email (its 'headers') to show the route it took, how long each step took, and whether it passed spam/authentication checks — handy for figuring out why a message was slow or went to spam.

Potential side effects

check_disposable

Tell whether an email address is a throwaway/temporary one, a generic team inbox (like info@ or support@), or a free consumer address (like gmail) — useful for spotting low-quality sign-ups.

Potential side effects

check_typo

Spot a likely typo in an email's domain (like gmial.

Potential side effects

lookup_smtp_code

Explain a mail-server reply/error code (like 550 or 5.

Inferred read-only

check_blacklist

Check whether a sending domain or IP is currently on any of the major email blacklists that can push your mail to spam — a point-in-time reputation check across lists like Spamhaus, SpamCop, and Barracuda.

Potential side effects

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.qualisend]
url = "https://app.qualisend.com/api/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "qualisend": {
      "type": "http",
      "url": "https://app.qualisend.com/api/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: qualisend
Remote MCP URL: https://app.qualisend.com/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "qualisend": {
      "url": "https://app.qualisend.com/api/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "qualisend": {
      "type": "http",
      "url": "https://app.qualisend.com/api/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "qualisend",
  "transport": "streamable-http",
  "url": "https://app.qualisend.com/api/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.