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.
- MCP endpoint:
https://mcp.argorant.com/mcp - Transport: Streamable HTTP · Auth: OAuth 2.1 (Dynamic Client Registration, account-scoped)
- Website: https://argorant.com · Privacy: https://argorant.com/privacy · Terms: https://argorant.com/terms
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):
| Tool | What it does |
|---|---|
search / fetch | ChatGPT-style coverage search + safe summary (masked previews, counts) |
argorant_account | Connected account, scopes, limits |
argorant_count_people | Count matching contacts by role, seniority, dept, industry, geo |
argorant_preview_people | Masked 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):
| Tool | What it does |
|---|---|
argorant_reveal_people | Reveal real emails, phones, profile URLs for a small set |
argorant_create_export / argorant_export_list | Async CSV export (large lists) |
argorant_create_list / argorant_list_status | Build & inspect reusable saved lists |
argorant_export_status / argorant_export_batch_status / argorant_download_export_preview | Track & 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
/mcpreturn401withWWW-Authenticatepointing at protected-resource metadata. - Masked by default.
search/fetch/previewnever 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
- Overview: https://argorant.com/docs/mcp/overview
- Connect guide: https://argorant.com/docs/mcp/connect
- Tool reference: https://argorant.com/docs/mcp/tools
- Claude setup: https://argorant.com/docs/mcp/claude · ChatGPT setup: https://argorant.com/docs/mcp/openai
- Security: https://argorant.com/docs/mcp/security
- CLI: https://argorant.com/docs/cli
Registry metadata
mcp.json— Open Plugins / Cursor remote-server declaration.server.json— official MCP Registry entry (io.github.argorant/argorant-mcp, remote streamable-http).