Argorant MCP Server

614 million contacts, live SMTP-verified. Invalid emails cost you $0. Connect Argorant with any Agent through CLI, MCP or API and build verified lists in Claude, GPT or Hermes.

Documentation

Argorant MCP

Verified B2B contact data for AI agents. Search, count, preview, reveal, export, and build saved lists across 600M+ business contacts — directly from Claude, ChatGPT, Cursor, and any MCP client.

This is a hosted remote connector — no install, no API key paste. Clients connect to the endpoint and authenticate via OAuth. A standalone CLI also exists (npx argorant) for terminal/script use.

Connect

Claude (claude.ai / Desktop): Settings → Connectors → Add custom connector → URL https://mcp.argorant.com/mcp → complete the OAuth login.

ChatGPT (Developer Mode): Settings → Apps & Connectors → Advanced → enable Developer Mode → Connectors → Create → URL https://mcp.argorant.com/mcp. The search + fetch tools make it usable as a Deep Research connector.

Cursor / other MCP clients: add the remote server from mcp.json:

{
  "mcpServers": {
    "argorant": {
      "url": "https://mcp.argorant.com/mcp"
    }
  }
}

Tools

Free (no credits, masked/aggregate only):

ToolWhat it does
search / fetchChatGPT-style coverage search + safe summary (masked previews, counts)
argorant_accountConnected account, scopes, limits
argorant_count_peopleCount matching contacts by role, seniority, dept, industry, geo
argorant_preview_peopleMasked preview rows (initials, role, company, location)

Consume credits (require OAuth scope + permission; verification is live at this step and only valid/deliverable contacts are billed):

ToolWhat it does
argorant_reveal_peopleReveal real emails, phones, profile URLs for a small set
argorant_create_export / argorant_export_listAsync CSV export (large lists)
argorant_create_list / argorant_list_statusBuild & inspect reusable saved lists
argorant_export_status / argorant_export_batch_status / argorant_download_export_previewTrack & fetch exports

Tools are annotated with read-only vs. action hints. Reveal/export/list actions only run after OAuth, scope, permission, quota, and plan checks; without credits they are blocked by design.

Data & privacy posture

  • OAuth + account-scoped. Unauthenticated requests to /mcp return 401 with WWW-Authenticate pointing at protected-resource metadata.
  • Masked by default. search/fetch/preview never return raw emails, phones, or profile URLs — only aggregate coverage and masked rows. Raw contact details require the scoped reveal/export tools and consume credits.
  • Verification is live. Emails are verified at reveal/export time; you are billed only for deliverable contacts. Raw verification status is never exposed as a queryable field.
  • Hosts are separated: argorant.com (marketing/docs), app.argorant.com (signed-in app), mcp.argorant.com (remote MCP + OAuth).

OAuth discovery

https://mcp.argorant.com/.well-known/oauth-protected-resource
https://mcp.argorant.com/.well-known/oauth-authorization-server

Dynamic Client Registration is supported at /register (grant types: authorization_code, refresh_token).

Documentation

Registry metadata

  • mcp.json — Open Plugins / Cursor remote-server declaration.
  • server.json — official MCP Registry entry (io.github.argorant/argorant-mcp, remote streamable-http).