Plain Dot | API

    Developer portal

    Programmatic access to Plain Dot compliance services — TIN matching, 1099 e-filing, W-9, verification.

    API Calls (30d)
    284,019
    +12% vs prev.
    Success Rate
    99.84%
    Last 24h
    Active Keys
    4
    2 live · 2 test

    Quickstart

    View docs 
    curl https://api.plaindot.com/v1/tin/match \
  -H "Authorization: Bearer sk_live_••••1234" \
  -H "Content-Type: application/json" \
  -d '{"name":"Acme Corp","tin":"12-3456789"}'