> ## Documentation Index > Fetch the complete documentation index at: https://docs.ondoperps.xyz/llms.txt > Use this file to discover all available pages before exploring further. # Place Spot order (delayed) > Place a fully funded Spot limit or market order. Use base-denominated size; quoteSize is unsupported. Acknowledgement is not a fill guarantee. Reconcile an uncertain submission by clientOrderId before replacing it. Client IDs are not idempotency keys: accepted-ID reuse fails with clientOrderID_collision. Price protection uses the underlying oracle; see /mark-price-protection. Use this path when the server directs the account to delayed placement. Sign the exact delayed path with a fresh timestamp. See the [Spot API guide](/api-reference/spot-api-guide). Requires authentication; API-key scope: `trade`. ## OpenAPI ````yaml /api-reference/rest-spec.json post /v1/spot/orders/delayed openapi: 3.0.3 info: title: Ondo Perps REST API version: '1.0' description: >- REST API for Ondo Perps: account, wallet, deposits/withdrawals, API keys, Spot trading, internal transfers, and perpetual futures trading. servers: - url: https://api.ondoperps.xyz security: - BearerAuth: [] paths: /v1/spot/orders/delayed: post: tags: - Spot trading summary: Place Spot order (delayed) description: >- Place a fully funded Spot limit or market order. Use base-denominated size; quoteSize is unsupported. Acknowledgement is not a fill guarantee. Reconcile an uncertain submission by clientOrderId before replacing it. Client IDs are not idempotency keys: accepted-ID reuse fails with clientOrderID_collision. Price protection uses the underlying oracle; see /mark-price-protection. Use this path when the server directs the account to delayed placement. Sign the exact delayed path with a fresh timestamp. See the [Spot API guide](/api-reference/spot-api-guide). Requires authentication; API-key scope: `trade`. operationId: postSpotOrdersDelayed requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/SpotAddOrderReq' responses: '200': description: Success. Inspect item-level outcomes for batch operations. content: application/json: schema: type: object properties: success: type: boolean result: $ref: '#/components/schemas/SpotOrder' required: - success '400': description: Validation error; inspect error_code and error. '429': $ref: '#/components/responses/TooManyRequests' security: - BearerAuth: [] - ApiKeyAuth: [] components: schemas: SpotAddOrderReq: type: object required: - market - side - size properties: side: type: string description: buy or sell enum: - buy - sell example: buy price: type: string description: >- Limit price. Must be aligned with quoteIncrement from /v1/markets. Omit for market orders. example: '1.55' size: type: string description: > Order quantity in base currency. Used for both limit and market orders. Must be aligned with baseIncrement from /v1/markets. example: '20.30' market: type: string description: Trading market pair example: SPY-USDC clientOrderId: type: string description: > Optional client-provided order ID. Must be alphanumeric including underscores and dashes, and at most 64 characters. example: order123 maxLength: 64 pattern: ^[A-Za-z0-9_-]+$ type: type: string description: Order type. Defaults to "limit". enum: - limit - market example: limit timeInForce: type: string description: > "GTC" (Good until cancelled) or "IOC" (Immediate or cancel). Cannot be set for market orders. Defaults to "GTC". enum: - GTC - IOC example: GTC postOnly: type: boolean description: >- Use only with a GTC limit order. Rejects an order that would immediately match; cannot be combined with IOC. example: false description: >- Spot limit or market order. Size is a positive multiple of baseIncrement; the minimum quantity is one increment. There is no separate minimum notional. Limit orders require price, a positive multiple of quoteIncrement below 10000000. Omit price and timeInForce for market orders. quoteSize, reduceOnly, TP/SL, builderCode, and rpi are not supported. See the Spot API guide for price protection and reconciliation. SpotOrder: type: object required: - orderId - side - price - size - market - filledSize - lastFillSize - filledCost - fee - status - createdAt - type properties: orderId: type: string description: Internal order ID example: 70a37d8f972f2494837f9dba8364cbb4 clientOrderId: type: string description: Client-provided order ID (if set) example: order123 side: type: string description: buy or sell enum: - buy - sell example: buy price: type: string description: Limit price example: '1.55' size: type: string description: Order quantity in base currency example: '20.30' market: type: string description: Trading market example: SPY-USDC filledSize: type: string description: Quantity of the order that has been filled example: '5.403' lastFillSize: type: string description: Quantity filled in the most recent trade example: '5.403' filledCost: type: string description: Cost of the filled portion of the order (filledSize × fill price) example: '8.37465' fee: type: string description: >- Fee in the asset received: base equivalent quantity for buys, USDC for sells. Zero during the launch promotion. example: '0.0837' status: type: string description: Order status enum: - open - fullyfilled - canceled example: open createdAt: type: string format: date-time description: Order creation time example: '2022-06-16T12:35:11.123456Z' filledAt: type: string format: date-time description: Time when the order was fully filled (if applicable) example: '2022-06-16T12:35:11.123456Z' canceledAt: type: string format: date-time description: Order cancellation time (if cancelled) example: '2022-06-16T12:35:11.123456Z' cancelReason: type: string description: >- Cancellation reason when provided. Treat this as an extensible string. example: liquidation type: type: string description: Order type enum: - limit - market example: limit timeInForce: type: string description: Time in force (GTC or IOC). Not returned for market orders. enum: - GTC - IOC example: GTC responses: TooManyRequests: description: Rate limit exceeded. Slow down request frequency. content: application/json: schema: type: object properties: success: type: boolean example: false error: type: string description: Human-readable error message error_code: type: string enum: - too_many_requests example: success: false error: Description of the error error_code: too_many_requests securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: JWT ApiKeyAuth: type: apiKey in: header name: ONDO-KEY-ID description: >- Also send ONDO-TIMESTAMP and ONDO-SIGN. See /api-reference/api_key_authentication for exact HMAC signing; the key ID alone is insufficient. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.