generated: '2026-07-18'
method: derived
source: grpc/celer-network-gateway.proto + https://cbridge-docs.celer.network/developer/cbridge-sdk
summary: >-
  cBridge exposes a gRPC-Web gateway (sgn.gateway.v1.Web) with grpc-gateway REST
  bindings. Read operations are unauthenticated; state-changing withdrawals are
  authorized by a client-side wallet signature over a serialized request, not by
  an API credential.
authentication:
  style: none-for-reads
  writes: EIP-712 / client-signed request (withdraw_req + sig on WithdrawLiquidity)
  cross_link: authentication/celer-network-authentication.yml
idempotency:
  supported: false
  note: No idempotency-key header/parameter is documented for the gateway API.
pagination:
  style: cursor
  request_params: [next_page_token, page_size]
  response_fields: [next_page_token, current_size]
  applies_to: [TransferHistory]
  note: First page uses an empty next_page_token.
error_envelope:
  field: err
  shape: '{ code: ErrCode, msg: string }'
  cross_link: errors/celer-network-problem-types.yml
versioning:
  style: uri-path
  current: v1
  cross_link: lifecycle/celer-network-lifecycle.yml
transport:
  primary: gRPC-Web
  also: REST (grpc-gateway HTTP annotations)
  content_type: application/grpc-web / application/json
rate_limit_signaling:
  documented: false