> ## Documentation Index > Fetch the complete documentation index at: https://docs.0xmonaco.com/llms.txt > Use this file to discover all available pages before exploring further. # Batch cancel specific orders > Batch cancel specific orders. Cancel multiple specific orders by their IDs. For canceling all orders, use /batch-cancel-all or /batch-cancel-all/{tradingPairId}. ## OpenAPI ````yaml /proto-openapi/api/openapi.yaml post /api/v1/orders/batch-cancel openapi: 3.0.3 info: title: Monaco Protocol API description: REST API for the Monaco Protocol hybrid CLOB exchange. version: 1.0.0 servers: - url: https://staging.apimonaco.xyz description: Staging server (Testnet) security: [] tags: - name: AccountsService - name: ApplicationsService - name: AuthService - name: BuildercodeRewardsService - name: CopyTradingService - name: DelegatedAgentsService - name: FaucetService - name: FeesService - name: HealthService - name: ManagedMarketsService description: |- Wallet-authenticated maker assignments. The signed session must match both configured maker user and application. Owner IDs are process fences, never auth. Only wallet sessions are supported; delegated-agent sessions receive 403. - name: MarginAccountsService description: |- Current public isolated-margin semantics: - a user has one parent margin account per application scope - opening orders create or reuse isolated position buckets under that parent - parent account creation is handled internally by margin workflows - name: MarketService - name: OrderbookService - name: OrdersService - name: PositionsService description: |- Current public isolated-margin semantics: - positions link to a parent margin account and, when applicable, a bucket id - opening orders create or reuse isolated position buckets under the parent - users can open another isolated position by reusing the parent account with a different market bucket - name: PulseService - name: SweeperService - name: TraderCodeService - name: TradesService - name: WhitelistService - name: WithdrawalsService paths: /api/v1/orders/batch-cancel: post: tags: - OrdersService - Orders summary: Batch cancel specific orders description: |- Batch cancel specific orders. Cancel multiple specific orders by their IDs. For canceling all orders, use /batch-cancel-all or /batch-cancel-all/{tradingPairId}. operationId: batch_cancel_orders requestBody: content: application/json: schema: $ref: '#/components/schemas/BatchCancelOrdersRequest' required: true responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/BatchCancelOrdersResponse' '400': description: Invalid request - orderIds is required '401': description: Authentication required '429': description: >- Risk-reduction rate limit exceeded — each id counts against the 2x risk-reduction budget (per account, and shared across the account family) and the whole request is rejected; retry after the interval in details.retryAfter '500': description: Internal server error or matching engine failure security: - monacoSignature: [] - monacoHttpSignature: [] components: schemas: BatchCancelOrdersRequest: required: - orderIds type: object properties: orderIds: maxItems: 100 minItems: 1 type: array items: type: string minLength: 1 format: uuid description: List of order UUIDs to cancel additionalProperties: false BatchCancelOrdersResponse: type: object properties: totalRequested: example: 5 type: integer description: Number of orders requested to cancel format: int32 nullable: true totalCancelled: example: 4 type: integer description: Number of orders successfully cancelled format: int32 nullable: true totalFailed: example: 1 type: integer description: Number of cancellations that failed format: int32 nullable: true results: type: array items: $ref: '#/components/schemas/BatchCancelResult' nullable: true BatchCancelResult: type: object properties: orderId: example: 123e4567-e89b-12d3-a456-426614174000 type: string description: Order UUID format: uuid nullable: true cancelledAt: example: '2023-11-13T10:35:00Z' type: string description: >- Cancellation timestamp (ISO 8601). Present on success; absent when `error` is set. nullable: true error: $ref: '#/components/schemas/BatchCancelError' BatchCancelError: type: object properties: code: example: ORDER_ALREADY_FILLED type: string description: Machine-readable error code nullable: true message: example: Order has already been fully filled type: string description: Human-readable error message nullable: true securitySchemes: monacoSignature: type: apiKey description: >- Ed25519 session-key request signing. Every authenticated request carries three headers: `X-Monaco-PublicKey` (64-char lowercase-hex session public key), `X-Monaco-Timestamp` (Unix milliseconds, within 30s of server time), and `X-Monaco-Signature` (hex ed25519 signature). The signature is over `METHOD\npath?query\ntimestamp_ms\nSHA256_hex(body)`, where the body hash is the SHA-256 of the empty byte string when there is no body. Obtain the session keypair from `POST /api/v1/auth/challenge` followed by `POST /api/v1/auth/verify`. name: X-Monaco-Signature in: header monacoHttpSignature: type: apiKey description: >- RFC 9421 Ed25519 session-key request signatures. Send Signature-Input, Signature, and Content-Digest together; never combine them with X-Monaco-* credentials. The monaco signature covers @method, @path, @query, and content-digest in that order, with created (Unix seconds within 30s of server time), keyid (registered lowercase-hex session public key), and alg=ed25519 parameters. Content-Digest uses RFC 9530 sha-256 over the exact body bytes, including the empty body. Query coverage retains ordering and percent encoding. Timestamp freshness does not reject repeated identical requests; use endpoint idempotency where supported. Existing legacy signing remains supported during server-first migration; SDK RFC 9421 signing is opt-in. See https://docs.0xmonaco.com/reference/http-message-signatures for the complete profile and trust model. name: Signature in: header ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.