> ## Documentation Index > Fetch the complete documentation index at: https://docs.immutable.com/llms.txt > Use this file to discover all available pages before exploring further. # Link wallet v2 > Link an external EOA wallet to an Immutable Passport account by providing an EIP-712 signature. ## OpenAPI ````yaml https://imx-openapiv3-mr-sandbox.s3.us-east-2.amazonaws.com/openapi.json post /passport-profile/v2/linked-wallets openapi: 3.0.3 info: title: Immutable zkEVM API version: 1.0.0 description: Immutable Multi Rollup API contact: name: Immutable API Support email: support@immutable.com url: https://support.immutable.com servers: - url: https://api.sandbox.immutable.com security: [] tags: - name: activities description: Activities Endpoints x-displayName: activities - name: chains description: Chains Endpoints x-displayName: chains - name: collections description: Collections Endpoints x-displayName: collections - name: nfts description: NFTs Endpoints x-displayName: nfts - name: nft owners description: NFT Owner Endpoints x-displayName: nft owners - name: metadata description: NFT Metadata Endpoints x-displayName: metadata - name: tokens description: ERC20 Token Endpoints x-displayName: tokens - name: demopage description: Temporary HTML endpoint for demo purposes x-displayName: demopage - name: verification x-displayName: verification - name: operatorallowlist x-displayName: operatorallowlist - name: crafting x-displayName: crafting - name: listings description: Listings Endpoints x-displayName: listings - name: orders x-displayName: orders - name: passport description: Passport operations x-displayName: passport - name: gamefi description: team gamefi x-displayName: gamefi - name: health x-displayName: health - name: passport profile description: Passport Profile endpoints x-displayName: passport profile - name: feed-items x-displayName: feed-items - name: assets x-displayName: assets - name: guardian description: Guardian endpoints x-displayName: guardian - name: pricing description: Pricing Endpoints x-displayName: pricing - name: metadata-search x-displayName: metadata-search paths: /passport-profile/v2/linked-wallets: post: tags: - passport profile summary: Link wallet v2 description: >- Link an external EOA wallet to an Immutable Passport account by providing an EIP-712 signature. operationId: link-wallet-v2 requestBody: content: application/json: schema: $ref: '#/components/schemas/LinkWalletV2Request' responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/Wallet' '400': description: BadRequestError content: application/json: schema: $ref: '#/components/schemas/APIError400' '401': description: UnauthorizedError content: application/json: schema: $ref: '#/components/schemas/APIError401' '403': description: ForbiddenError content: application/json: schema: $ref: '#/components/schemas/APIError403' '500': description: InternalServerError content: application/json: schema: $ref: '#/components/schemas/APIError500' security: - BearerAuth: - openid components: schemas: LinkWalletV2Request: description: Link wallet V2 request type: object required: - type - wallet_address - signature - nonce properties: type: type: string description: >- This should be the EIP-6963 rdns value, if you're unable to get the rdns value you can provide "External". If using WalletConnect then provide "WalletConnect". example: io.metamask maxLength: 32 not: enum: - Passport - com.immutable.passport wallet_address: description: The address of the external wallet being linked to Passport type: string example: '0xd8da6bf26964af9d7eed9e03e53415d37aa96045' pattern: ^0x[a-fA-F0-9]{40}$ signature: description: The EIP-712 signature type: string nonce: description: A unique identifier for the signature type: string Wallet: description: Linked wallet type: object required: - address - type - created_at - updated_at - clientName properties: address: $ref: '#/components/schemas/EthAddress' type: $ref: '#/components/schemas/WalletType' created_at: $ref: '#/components/schemas/CreatedAt' updated_at: $ref: '#/components/schemas/CreatedAt' name: $ref: '#/components/schemas/Name' clientName: type: string description: Name of client that linked the wallet example: Passport Dashboard APIError400: allOf: - $ref: '#/components/schemas/BasicAPIError' - type: object properties: code: type: string description: Error Code enum: - VALIDATION_ERROR example: VALIDATION_ERROR details: type: object nullable: true description: Additional details to help resolve the error required: - code - details APIError401: allOf: - $ref: '#/components/schemas/BasicAPIError' - type: object properties: code: type: string description: Error Code enum: - UNAUTHORISED_REQUEST example: UNAUTHORISED_REQUEST details: type: object nullable: true description: Additional details to help resolve the error required: - code - details APIError403: allOf: - $ref: '#/components/schemas/BasicAPIError' - type: object properties: code: type: string description: Error Code enum: - AUTHENTICATION_ERROR example: AUTHENTICATION_ERROR details: type: object nullable: true description: Additional details to help resolve the error required: - code - details APIError500: allOf: - $ref: '#/components/schemas/BasicAPIError' - type: object properties: code: type: string description: Error Code enum: - INTERNAL_SERVER_ERROR example: INTERNAL_SERVER_ERROR details: type: object nullable: true description: Additional details to help resolve the error required: - code - details EthAddress: description: Ethereum address type: string example: '0xd8da6bf26964af9d7eed9e03e53415d37aa96045' WalletType: description: Wallet type type: string example: MetaMask CreatedAt: description: Created at type: string format: date-time example: '2021-08-31T00:00:00Z' Name: description: Name type: string example: Test BasicAPIError: type: object properties: message: type: string description: Error Message example: all fields must be provided link: type: string description: Link to IMX documentation that can help resolve this error example: https://docs.x.immutable.com/reference/#/ trace_id: type: string description: Trace ID of the initial request example: e47634b79a5cd6894ddc9639ec4aad26 required: - message - link - trace_id securitySchemes: BearerAuth: type: http scheme: bearer bearerFormat: JWT ````