# LetterStream API Integration ## Credentials - API_ID: rzv56x1v - API_KEY: 5ezy56k2ny7a8vx14u - Account email: info@itpropartner.com - Mode: Automation (generate PDF + CSV → certified mail with tracking + delivery confirmation) ## API Access Process - API is NOT visible by default in the account dashboard - Must email support@letterstream.com requesting Automation mode - Include: company overview, use case, confirmation of dev resources - Once approved, API documentation appears under "My Account" in the dashboard ## Cost - Single certified letter: ~$8.34 (varies by page count + postage type) - Pay-as-you-go, no monthly minimum ## Integration (DRE Portal) - DRE generates demand letter as PDF in the case management system - LetterStream API sends the letter with tracking + return receipt - Delivery confirmation webhook updates case status automatically ## Pitfalls - API credentials do NOT work against generic API endpoints before approval - The documentation is account-dashboard-gated — no public URL - All 404 responses before account approval is normal