seedforge-verify-mcp 0.1.0

MCP server for the SeedForge Verify email verification API. Pay-per-use, no subscription.

seedforge-verify-mcp

MCP server for the SeedForge Verify email verification API. Lets LLM agents (Claude Desktop, Cursor, Continue, any MCP-compatible client) verify emails, batch verify CSV lists, and check account balance directly.

• Pay per use. No subscription. 100 free verifications per month.
• First MCP-native email verifier. Built for AI agents from day one.
• Cache hits are free. Re-verifying the same email within 14 days costs $0.

Install

pip install seedforge-verify-mcp

Or via npm:

npm install -g @seedforge-dev/verify-mcp

Get an API key

Sign up at verify.seedforge.dev and grab your key from the dashboard. No card required for the free tier.

Configure your MCP client

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "verify": {
      "command": "seedforge-verify-mcp",
      "env": {
        "VERIFY_API_KEY": "vk_your_key_here"
      }
    }
  }
}

Restart Claude Desktop. The five tools (verify_email, batch_verify, get_job_status, get_balance, get_verification_explanation) will appear under the hammer icon.

Cursor

Edit ~/.cursor/mcp.json:

{
  "mcpServers": {
    "verify": {
      "command": "seedforge-verify-mcp",
      "env": {
        "VERIFY_API_KEY": "vk_your_key_here"
      }
    }
  }
}

Any other MCP client

Run seedforge-verify-mcp over stdio with VERIFY_API_KEY in the environment. The server uses the standard MCP stdio transport.

Tools

Tool	What it does	Cost
verify_email	Verify one email, return tier + score + signals	$0.005 (cache hit: $0)
batch_verify	Async batch verification, returns job_id	Charged per email as completed
get_job_status	Poll a batch job, get progress + download URL	Free
get_balance	Check credit balance	Free
get_verification_explanation	Human-readable rationale for a verdict	$0.005 (cache hit: $0)

Pricing

Top-up	Verifications	Per-email price
Free tier	100 / month	$0.000
$10	2,000	$0.005
$50	12,500	$0.004
$100	33,333	$0.003

No subscription. No minimum monthly spend. Credits never expire.

Environment variables

• VERIFY_API_KEY (required): your vk_... key
• VERIFY_BASE_URL (optional): override the API endpoint. Defaults to https://api.seedforge.dev. Use http://127.0.0.1:8766 for local dev against a self-hosted instance.

Example agent prompts

"Verify that [e-mail] is deliverable, and explain why if not SAFE."

The agent will call verify_email, see the tier, and if RISKY or SKIP, follow up with get_verification_explanation to give you a readable rationale.

"I'm about to send cold email to these 100 prospects. Filter out anyone who would bounce."

The agent calls batch_verify, polls get_job_status until complete, then filters the list by tier=SAFE.

License

MIT