> ## Documentation Index > Fetch the complete documentation index at: https://docs.kraken.com/llms.txt > Use this file to discover all available pages before exploring further. # List withdrawal methods > Returns the withdrawal methods available for the vault. Each entry carries the method identifier, fee and fee asset, minimum withdrawal amount, disabled flag, and the network metadata for the underlying chain. Filter by `asset` and `asset_class` together to limit results to a single asset. **Rate limit:** 200 requests per 30 seconds per IP. ## OpenAPI ````yaml /openapi/insto-custody-rest.yaml get /v0/insto/custody/vaults/{vault_id}/withdrawal-methods openapi: 3.0.0 info: title: Insto Custody External REST API version: 1.0.0 description: '' servers: - url: https://api.kraken.com description: Production Server security: - API-Key: [] API-Sign: [] tags: - name: Custody External API - name: apiFormat:kraken2025 paths: /v0/insto/custody/vaults/{vault_id}/withdrawal-methods: get: tags: - Custody External API - apiFormat:kraken2025 summary: List withdrawal methods description: >- Returns the withdrawal methods available for the vault. Each entry carries the method identifier, fee and fee asset, minimum withdrawal amount, disabled flag, and the network metadata for the underlying chain. Filter by `asset` and `asset_class` together to limit results to a single asset. **Rate limit:** 200 requests per 30 seconds per IP. operationId: getV0InstoCustodyVaultsVaultIdWithdrawalMethods parameters: - in: query name: asset description: >- Filter results to a single asset code (e.g. `BTC`). Requires `asset_class` when supplied. schema: type: string example: BTC style: form - in: query name: asset_class description: >- Asset class filter. Required when `asset` is supplied. Currently only `currency` is supported. schema: type: string example: currency style: form - in: path name: vault_id required: true description: >- Vault identifier, a `V`-prefixed 14-char base32 string with a final check character. schema: type: string example: VABCDEF234567A style: simple responses: '200': description: >- Withdrawal methods available for the vault, optionally filtered by asset. content: application/json: schema: type: array description: List of withdrawal methods available for the vault. items: type: object description: A single withdrawal method available for the vault. properties: name: type: string description: Funding method name (e.g. `Bitcoin`, `ACH`, `SEPA`). example: Bitcoin method_id: type: string description: Funding method identifier. example: 11111111-1111-1111-1111-111111111111 fee: type: string description: Withdrawal fee, fixed-precision decimal as string. example: '0.00010000' fee_asset: type: string description: >- Asset code the fee is charged in. May differ from the asset being withdrawn. example: BTC fee_asset_class: type: string description: >- Asset class of the fee asset. Currently always `currency`. example: currency minimum: type: string description: >- Minimum withdrawal amount, fixed-precision decimal as string. example: '0.00100000' is_disabled: type: boolean description: Whether this method is temporarily disabled. example: false asset: type: string description: Asset code (e.g. `BTC`, `USD`). example: BTC asset_class: type: string description: Asset class. Currently always `currency`. example: currency network_info: type: object description: >- Network metadata for the underlying chain. Omitted for methods without an associated chain. properties: network: type: string description: >- Underlying network or chain name (e.g. `Bitcoin`, `Ethereum`). example: Bitcoin explorer: type: string description: >- Block explorer URL template for the underlying chain. example: https://www.blockchain.com/btc/tx/{tx_id} '400': description: >- Bad Request. The request failed validation. Examples: malformed `vault_id`, or `asset` supplied without `asset_class`. content: application/problem+json: schema: description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:BadRequest example: tag:kraken.com,2025:BadRequest status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 400 title: description: Short human-readable summary type: string example: Bad Request detail: nullable: true description: Help to solve the problem type: string example: asset supplied without asset_class instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Error-specific payload. type: object properties: message: description: Human-readable description of the validation failure. type: string example: asset_class is required when asset is supplied required: - message required: - data - status - title - type '403': description: Forbidden. The caller lacks access to the requested vault. content: application/problem+json: schema: description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:PermissionDenied example: tag:kraken.com,2025:PermissionDenied status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 403 title: description: Short human-readable summary type: string example: Permission Denied detail: nullable: true description: Help to solve the problem type: string example: The caller does not have access to the requested vault. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Error-specific payload. type: object properties: message: description: Human-readable description of why access was denied. type: string example: Caller lacks read access to vault VABCDEF234567A required: - message required: - data - status - title - type '404': description: Not Found. No asset matched the supplied `asset` and `asset_class`. content: application/problem+json: schema: description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:AssetNotFound example: tag:kraken.com,2025:AssetNotFound status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 404 title: description: Short human-readable summary type: string example: Asset Not Found detail: nullable: true description: Help to solve the problem type: string example: No asset matched the supplied asset and asset_class. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Error-specific payload. type: object properties: message: description: Human-readable description of the lookup failure. type: string example: Asset BTC with class currency was not found required: - message required: - data - status - title - type '500': description: >- Internal Server Error. An unhandled exception occurred while serving the request. content: application/problem+json: schema: oneOf: - description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:gateway/ReadUpstream example: tag:kraken.com,2025:gateway/ReadUpstream status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 500 title: description: Short human-readable summary type: string example: Internal Server Error detail: nullable: true description: Help to solve the problem type: string example: Failed to read response from upstream custody service. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Custom data attached to this problem required: - data - status - title - type - description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:gateway/WriteResponse example: tag:kraken.com,2025:gateway/WriteResponse status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 500 title: description: Short human-readable summary type: string example: Internal Server Error detail: nullable: true description: Help to solve the problem type: string example: Failed to write response to upstream custody service. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Custom data attached to this problem required: - data - status - title - type - description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:gateway/Connect example: tag:kraken.com,2025:gateway/Connect status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 500 title: description: Short human-readable summary type: string example: Internal Server Error detail: nullable: true description: Help to solve the problem type: string example: Failed to connect to upstream custody service. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Custom data attached to this problem required: - data - status - title - type - description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:gateway/Fatal example: tag:kraken.com,2025:gateway/Fatal status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 500 title: description: Short human-readable summary type: string example: Internal Server Error detail: nullable: true description: Help to solve the problem type: string example: >- A fatal gateway error occurred while serving the request. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Custom data attached to this problem required: - data - status - title - type - description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:Unknown example: tag:kraken.com,2025:Unknown status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 500 title: description: Short human-readable summary type: string example: Internal Server Error detail: nullable: true description: Help to solve the problem type: string example: >- An unexpected error occurred while serving the request. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: type: object properties: message: type: string description: >- Human-readable description of the underlying failure. example: Unhandled exception while servicing the request. core_error: type: string description: Identifier for the originating error. example: InternalError required: - message - core_error description: >- Error-specific payload returned for an unhandled exception. required: - data - status - title - type '503': description: >- Service Unavailable. The upstream custody service could not be reached. content: application/problem+json: schema: description: >- Type for errors when using the Kraken2025 format. This format follows `Problem Details for HTTP APIs` ([rfc7807]). [rfc7807]: https://datatracker.ietf.org/doc/html/rfc7807 type: object properties: type: description: >- URL uniquely identifying the error type relative to an operation type: string enum: - tag:kraken.com,2025:gateway/Connect example: tag:kraken.com,2025:gateway/Connect status: description: HTTP status (provided for convenience) type: integer format: uint16 minimum: 0 example: 503 title: description: Short human-readable summary type: string example: Service Unavailable detail: nullable: true description: Help to solve the problem type: string example: >- Downstream custody service is temporarily unreachable; retry with backoff. instance: nullable: true description: Link to debug data for this particular error type: string example: https://debug.kraken.com/req/01HXYZABCDEF data: description: Custom data attached to this problem required: - data - status - title - type security: - API Key Auth (key): [] API Key Auth (signature): [] API Key Auth (nonce): [] API Key Auth (otp): [] components: securitySchemes: API Key Auth (key): type: apiKey in: header name: api-key API Key Auth (signature): type: apiKey in: header name: api-sign API Key Auth (nonce): type: apiKey in: header name: api-nonce API Key Auth (otp): type: apiKey in: header name: api-otp ````