> ## 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. # Post apiv1margincollateraltransfer > Move collateral between the spot wallet, the caller's margin accounts and their risk buckets. `from` and `to` each name the wallet or a margin account (optionally one of its risk buckets). Supported moves: wallet to the default margin account and back, margin account to margin account, and margin account to one of its own risk buckets. The older transfer routes keep working unchanged. ## OpenAPI ````yaml /proto-openapi/api/openapi.yaml post /api/v1/margin/collateral/transfer 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/margin/collateral/transfer: post: tags: - MarginAccountsService description: >- Move collateral between the spot wallet, the caller's margin accounts and their risk buckets. `from` and `to` each name the wallet or a margin account (optionally one of its risk buckets). Supported moves: wallet to the default margin account and back, margin account to margin account, and margin account to one of its own risk buckets. The older transfer routes keep working unchanged. operationId: transfer_collateral requestBody: content: application/json: schema: $ref: '#/components/schemas/TransferCollateralRequest' required: true responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/TransferCollateralResponse' '429': description: >- Movement rate limit exceeded — withdrawals and collateral transfers share a per-user budget; retry after the interval in details.retryAfter security: - monacoSignature: [] - monacoHttpSignature: [] components: schemas: TransferCollateralRequest: type: object properties: asset: type: string description: Collateral asset symbol or address. nullable: true amount: type: string nullable: true from: allOf: - $ref: '#/components/schemas/CollateralTransferEndpoint' description: Where the collateral comes from. nullable: true to: allOf: - $ref: '#/components/schemas/CollateralTransferEndpoint' description: Where the collateral goes. nullable: true TransferCollateralResponse: type: object properties: movementId: type: string nullable: true amount: type: string nullable: true fromMarginAccountId: type: string description: The source margin account, when the source is one. nullable: true toMarginAccountId: type: string description: The destination margin account, when the destination is one. nullable: true toRiskBucketId: type: string description: The destination risk bucket, when the destination is one. nullable: true CollateralTransferEndpoint: type: object properties: wallet: type: boolean description: >- The spot wallet. Set exactly one of `wallet` and `margin_account_id`. nullable: true marginAccountId: type: string nullable: true riskBucketId: type: string description: A risk bucket of `margin_account_id`. nullable: true description: |- One side of a `TransferCollateral`: the spot wallet, or a margin account and optionally one of its risk buckets. 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.