# Seamless.AI documentation Research date: 2026-09-07 Documentation coverage: partial. Reference index, not a mirror of complete vendor documentation. Retrieved pages do not prove the MCP works. ## What it does A B2B contact and company database/prospecting tool that lets users search and pull emails, phone numbers, and firmographic data from a claimed 1.9B+ contact / 121M+ company index, plus basic list-building, outreach/campaign sending, and CRM sync. ## Access and connection MCP support: official Access requirements: enterprise-only Authentication: OAuth 2.1 or API key; docs state "MCP access must be enabled on your account" - i.e. gated per-account, contact admin/support to turn on Research checked: 2026-09-07 These details come from catalog research. Check vendor sources for current setup instructions; this is not proof of a tested connection. ## Sources - https://docs.seamless.ai/mcp-docs - https://seamless.ai/customers/blog/products/seamless-mcp-server - https://www.prweb.com/releases/seamlessais-new-mcp-server-takes-you-from-prompt-to-closed-won-deal-302839077.html - https://salesintel.io/blog/seamless-ai-pricing/ - https://www.spendhound.com/marketplace/seamlessai-pricing - https://www.cleanlist.ai/blog/2026-03-19-seamless-ai-pricing-guide - https://mcp.seamless.ai/mcp ## Retrieved pages - https://docs.seamless.ai/mcp-docs (fetched)