> ## Documentation Index > Fetch the complete documentation index at: https://entendre.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create manual asset > Creates a manual opening asset and adjusts its opening balance. Opening-period and reference checks apply. ## OpenAPI ````yaml openapi-public-preview.json POST /v1/assets openapi: 3.1.0 info: title: Entendre API version: 1.0.0 description: Programmatic access to crypto-native accounting and treasury operations. servers: - url: https://api.entendre.finance description: Production API. security: - ApiKey: [] tags: - name: Organization description: Read your organization profile and find members for agent assignments. - name: Transactions description: Find transactions, inspect their details and create manual records. - name: Sources description: >- Manage wallets, exchange accounts, bank accounts and other transaction sources. - name: Assets description: Inspect asset acquisitions, remaining quantities and cost basis. - name: Journals description: >- Create and post journal entries, correct eligible entries and sync posted journals to a connected general ledger. - name: Documents description: >- Upload documents, check processing status and link supporting evidence to transactions. - name: Legal Entities description: Manage the legal entities used in your accounting records. - name: Ledger Accounts description: Manage your chart of accounts and find accounts for journal entries. - name: Tags description: Create and manage tags to classify your records. - name: Accruals description: >- Create and post accruals, inspect their status and reverse eligible entries. - name: Cash Application description: Match deposits to invoices and manage the resulting cash applications. - name: Classification description: >- Classify transactions in a batch, post eligible entries and inspect the results. - name: Revaluation description: Run asset revaluations for an accounting period and check their results. - name: Accounting Periods description: Check whether a period is ready to close, then close or reopen it. - name: Income Statement description: View revenue, expenses and net income for a reporting period. - name: Balance Sheet description: View assets, liabilities and equity as of a reporting date. - name: Trial Balance description: Review ledger account balances and debit and credit totals. - name: Closing Positions description: View asset positions at the end of a reporting period. - name: Treasury Balances description: Review treasury balances by asset and source. - name: Realized Gains & Losses description: Review realized gains and losses from asset dispositions. - name: Asset Tax Lots description: Inspect asset tax lots, remaining quantities and cost basis. - name: Schedule of Dispositions description: >- Review asset dispositions and their proceeds, cost basis and gains or losses. - name: Financial Insights description: Review financial insights for your selected reporting context. - name: Agents description: Create agents, schedule their work and inspect their runs. - name: Memory description: Read, search and maintain the memory files your agents use. - name: Connections description: Connect providers, manage authorization and disconnect. - name: GL Mapping description: >- Map ledger accounts and legal entities to your ERP. Import legal entities, tags and chart of accounts. - name: Request description: Request information, documents or connections from a client. - name: Client description: Manage your firm’s client relationships. - name: Team description: Invite team members and manage their access to your firm. - name: Settings description: Read and update your firm settings. paths: /v1/assets: post: tags: - Assets summary: Create manual asset description: >- Creates a manual opening asset and adjusts its opening balance. Opening-period and reference checks apply. operationId: create_manual_asset parameters: - name: Idempotency-Key in: header required: true description: >- Unique key for this operation. Retry with the same key and request body after a timeout. Keys are retained for at least 24 hours. schema: type: string minLength: 1 maxLength: 255 example: example-operation-2026-08-31-001 requestBody: required: true content: application/json: schema: type: object required: - asset_type - quantity - cost_basis - legal_entity_id - ledger_account_id - source_id properties: asset_type: type: string examples: - ETH description: >- Asset type or symbol. To add to an existing type, use the exact `asset_type` from List assets. quantity: type: string description: >- Positive decimal string, such as `"10.5"`. JSON numbers are rejected. cost_basis: type: string description: >- Decimal string, such as `"15750.00"`. JSON numbers are rejected. legal_entity_id: type: string description: Prefixed legal entity ID (`le_`). ledger_account_id: type: string description: Prefixed ledger account ID (`lac_`). date_received: type: string format: date description: Acquisition date (YYYY-MM-DD). example: '2026-08-01' source_id: type: string description: >- Wallet, exchange or Plaid source that holds the opening asset (`wal_…`, `exs_…` or `pla_…` from List sources). example: wal_507f1f77bcf86cd799439011 currency: type: string description: Defaults to legal entity base currency. chain: type: string description: Blockchain network, such as `eth`. additionalProperties: false example: asset_type: ETH quantity: '100.00' cost_basis: '100.00' legal_entity_id: le_507f1f77bcf86cd799439011 ledger_account_id: lac_507f1f77bcf86cd799439011 source_id: wal_507f1f77bcf86cd799439011 responses: '201': description: Created. headers: X-Request-Id: description: Support correlation ID. schema: type: string content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/Asset' required: - data additionalProperties: false example: data: id: ast_abc123 asset_type: ETH quantity: '100.00' remaining_quantity: '100.00' cost_basis: '100.00' currency: USD date_received: null chain: null legal_entity_id: le_507f1f77bcf86cd799439011 ledger_account_id: lac_507f1f77bcf86cd799439011 transaction_id: null source_id: src_507f1f77bcf86cd799439011 is_manual: true created_at: null updated_at: null '400': description: >- The request is invalid. `error.fields` lists the fields to correct. Nothing was changed. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: VALIDATION_ERROR message: Invalid path, query or request body. request_id: req_example '401': description: The API key is missing, invalid or expired. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: UNAUTHORIZED message: Authentication is required. request_id: req_example '403': description: >- The API key does not have the required scope or is not associated with a user, or the action needs a review in the dashboard. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: FORBIDDEN message: Insufficient access to organization request_id: req_example '404': description: The resource does not exist, or your organization cannot access it. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: RESOURCE_NOT_FOUND message: Resource not found request_id: req_example '409': description: >- The current state of the resource or an accounting rule prevents this operation. Read the resource again before you choose another action. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: CONFLICT message: The resource state does not allow this operation. request_id: req_example '429': description: >- Too many requests. If the response has a `Retry-After` header, wait that many seconds before you retry. Otherwise, read `error.message`. headers: Retry-After: description: Seconds to wait before retrying. schema: type: integer minimum: 1 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: RATE_LIMITED message: Rate limit exceeded. Retry after 30s. request_id: req_example '500': description: >- An unexpected error occurred. A write can still have taken effect; check the resource before you retry. Give the `request_id` to support. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: INTERNAL_ERROR message: Internal server error request_id: req_example '503': description: >- A service that this operation needs is unavailable. If the response has a `Retry-After` header, wait that many seconds. Check for earlier accepted work before you send the request again. headers: Retry-After: description: Seconds to wait before retrying. schema: type: integer minimum: 1 content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: error: code: SERVICE_UNAVAILABLE message: Service unavailable. request_id: req_example components: schemas: Asset: type: object properties: id: type: string description: Prefixed asset ID (`ast_`). examples: - ast_abc123 asset_type: type: string examples: - ETH description: Asset symbol, such as `ETH`. quantity: type: string description: Decimal string. examples: - '10.5' remaining_quantity: type: string examples: - '8.25' description: Quantity still held (decimal string). cost_basis: type: string examples: - '15750.00' description: >- Cost basis of the acquisition. Uses the marked basis when one exists. currency: type: string examples: - USD description: Currency of the cost basis. date_received: type: - string - 'null' format: date-time description: Acquisition date (ISO 8601). chain: type: - string - 'null' description: Blockchain network, such as `eth`. legal_entity_id: type: - string - 'null' examples: - le_456def description: Legal entity ID (`le_…`). ledger_account_id: type: - string - 'null' examples: - lac_789ghi description: Ledger account ID (`lac_…`). transaction_id: type: - string - 'null' examples: - txn_012jkl description: Transaction that created the asset record (`txn_…`). source_id: type: - string - 'null' examples: - src_507f1f77bcf86cd799439011 description: Source ID for this asset. is_manual: type: boolean description: '`true` for a manual opening asset.' created_at: type: - string - 'null' format: date-time description: Time the asset record was created (ISO 8601). updated_at: type: - string - 'null' format: date-time description: Time the asset record was last updated (ISO 8601). required: - id - asset_type - quantity - remaining_quantity - cost_basis - currency ErrorResponse: type: object required: - error properties: error: type: object required: - code - message - request_id properties: code: type: string description: Machine-readable error code. message: type: string description: Technical description for developers. fields: type: object additionalProperties: type: string description: >- Present only on VALIDATION_ERROR. Maps failing field paths to reason strings. details: type: object additionalProperties: true description: >- Optional redacted diagnostic details. Request validation uses fields or field_errors. suggested_action: type: string description: A suggested next step. documentation_url: type: string format: uri description: Link to documentation about this error. request_id: type: string description: Unique request ID for support escalation. description: Error details. securitySchemes: ApiKey: type: apiKey in: header name: X-API-Key description: >- Your organization API key. Some operations also need a key that is associated with a user; their pages say so. ````