Changelog

Lango’s compatibility promise: additive changes (new fields, new endpoints, new event types, new optional parameters) ship without notice — build your parsers to ignore fields they don’t know. Breaking changes get a dated entry here, a migration window, and direct email to affected merchants.

2026-09-12

• Added POST /v1/payment_links, POST /v1/payment_links/bulk, GET /v1/payment_links — payment links as API objects, with QR codes in the dashboard.
• Added POST /v1/pricing/preview — unauthenticated pricing quotes at the platform’s published rates (the marketing calculator’s endpoint).

2026-09-11

• Added the public API v1: payments, refunds, preview, balance, events, webhook subscriptions.
• Added sandbox simulation (POST /v1/test/simulate) and the ten deterministic test numbers.