generated: '2026-07-17'
method: searched
source: https://docs.anoma.net/api-clients
summary: >-
  Anoma exposes its backend surface through typed HTTP API clients shipped in the
  @anomaorg/anoma-app-sdk package rather than a single published REST base URL.
  Each client extends a base ApiClient class, is instantiated with a service URL,
  and throws typed ResponseError exceptions on failure.
authentication:
  style: no-api-key
  notes: >-
    Clients are instantiated with service URLs rather than API keys. The
    IndexerClient registers discovery keypairs (addKeys) instead of using bearer
    tokens or API keys.
clients:
- name: TransferBackendClient
  purpose: Transaction submission and proving
  operations: [transfer, transactionStatus, estimateFee, tokenPrice, tokenBalances, statsQueue]
- name: IndexerClient
  purpose: Encrypted resource payloads tracked on-chain
  operations: [addKeys, resources, config]
- name: EnvioClient
  purpose: GraphQL queries for public nullifier records
  transport: graphql
  operations: [publicNullifiers]
- name: FeedbackClient
  purpose: User feedback collection
error_envelope:
  style: typed-exception
  type: ResponseError
  notes: All clients extend a base ApiClient and raise typed ResponseError exceptions.
idempotency:
  supported: false
  notes: No idempotency-key header or contract is documented.
pagination:
  documented: false
versioning:
  scheme: semver
  surface: npm package (@anomaorg/anoma-app-sdk)
cross_links:
  authentication: authentication/anoma-authentication.yml
  packages: packages/anoma-packages.yml