# IMBA Partner API > B2B HTTP API at https://api.imbawallet.com > Docs: https://api-docs.imbawallet.com > Auth: Ed25519 assertion → POST /auth/v1/partner/token → Bearer access (900s) > Money: USDT on TRON. Amounts are decimal strings. Idempotency via ext_id. > Secrets: card JWE / gift epin / eSIM LPA only on GET — not in webhooks. > Webhooks: HMAC-SHA256 header X-IMBA-Signature, idempotent by event_id. ## Guides - https://api-docs.imbawallet.com/ - https://api-docs.imbawallet.com/guides/quickstart - https://api-docs.imbawallet.com/guides/authentication - https://api-docs.imbawallet.com/guides/conventions - https://api-docs.imbawallet.com/guides/money-and-idempotency - https://api-docs.imbawallet.com/guides/balance-and-deposit - https://api-docs.imbawallet.com/guides/withdrawals - https://api-docs.imbawallet.com/guides/cards - https://api-docs.imbawallet.com/guides/card-encryption - https://api-docs.imbawallet.com/guides/esim - https://api-docs.imbawallet.com/guides/gift-cards - https://api-docs.imbawallet.com/guides/documents - https://api-docs.imbawallet.com/guides/reconciliation - https://api-docs.imbawallet.com/guides/webhooks - https://api-docs.imbawallet.com/guides/errors - https://api-docs.imbawallet.com/guides/rate-limits - https://api-docs.imbawallet.com/api-reference/overview