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Byzantine has built an API to simplify the integration of our platform into your own.
Download the OpenAPI specification to view the full API endpoints. Public access: /v1/query/apy and /v1/query/apy-history require no integrator authentication; protected endpoints still require signed requests. See the breaking migration guide.

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Account creation

  • Create and manage entities and users, including KYC/KYB payloads and supporting documents.
  • Complete the account creation process to enable on-ramping and off-ramping.

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Transactions with passkey

  • Get activate/deposit/withdraw body endpoints return unsigned transactions for passkey-based flows.
  • Send transaction broadcasts a signed payload after collecting the user’s WebAuthn signature.

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Account management

  • Manage existing accounts: add bank accounts and other features are coming soon.

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User management

  • Manage users by inviting them, updating their roles, and managing their authenticators (passkeys).
  • Initialize OTP for a user and authenticate with OTP to create a session for authenticated actions.

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Vault data

  • Discover active vaults with Top vaults, then use the public /v1/query/apy and /v1/query/apy-history endpoints with a vault address and chain. See Vault APY and history for ratio units, sampling, and migration from the removed vault-ID routes.
  • Retrieve the list of supported deposit tokens and their on-chain details using the Assets endpoint.

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Account data

  • Retrieve vault activity for a single user: deposits, withdrawals, and aggregate positions.
  • Check transaction statuses and historical activity after deposits/withdrawals are initiated.
  • Use these endpoints to confirm when funds finish on-ramping or when a withdrawal settles.

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API health

  • GET /v1/health returns the service status.
Select any endpoint category below to view request/response schemas generated from the OpenAPI file.