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Lead Assist (GreenPin) API

Lead Assist (formerly GreenPin) enables secure, privacy-protected communication between two parties using virtual numbers and PINs. It's commonly used for delivery verification, on-demand services, and marketplace communications.

Key Features​

  • Privacy Masking — Connect parties without revealing their actual phone numbers
  • PIN Verification — Generate PINs mapped to virtual numbers for secure verification
  • Dynamic Allocation — Automatically manage virtual number pools
  • Flexible Duration — Allocations can last from 5 minutes to 170 days

Base URL​

https://leadassist.exotel.in/v1/tenants/<tenant_id>/greenpin

Authentication​

Lead Assist uses a separate authentication from the standard Exotel API:

  • Account SID — Your Exotel account SID
  • ExoBridge Token — Separate token for Lead Assist APIs
info

Lead Assist is an account-level feature that must be enabled by your account manager or by contacting hello@exotel.com. The API credentials are different from your default Exotel API credentials.

How It Works​

  1. Create Allocation — Generate a PIN and map it to users via a virtual number
  2. Share PIN — Provide the PIN to the relevant party for verification
  3. Verify — The party calls the virtual number and enters the PIN
  4. Connect — On successful verification, parties are connected
  5. Release — Delete the allocation when no longer needed