> ## Documentation Index > Fetch the complete documentation index at: https://docs.totalis.trade/llms.txt > Use this file to discover all available pages before exploring further. # Create wallet challenge > Starts signing in a user's own wallet from a partner's web page, returning the exact EIP-4361 message to sign with personal_sign. No API key required. ## OpenAPI ````yaml /hyperliquid/openapi.json post /v1/auth/wallet-challenges openapi: 3.1.1 info: title: Totalis Hyperliquid API description: >- REST API for Totalis singles and parlays on Hyperliquid HIP-4 outcome markets, for client integrations and external market makers. There are three ways in, each sent as `Authorization: Bearer `: - **Scoped API key** (`ttk_`), for servers, bots and market makers. The account owner creates it in the Totalis app, or a wallet-session user creates one with `POST /v1/me/api-keys` and a fresh wallet signature (see API keys). It acts for one account, yours or a maker's, with only the scopes it holds, and needs no `Origin`. - **Wallet session**, for users who bring their own wallet to a partner's web page. The page signs the wallet in with `POST /v1/auth/wallet-challenges` and `POST /v1/auth/wallet-sessions`; the session is bound to the page's registered `Origin` and must be sent from it. Pages may also label their traffic with their publishable browser key in `X-Totalis-Partner: tpb_...`. - **Partner server key** (`tpk_`), only for `POST /v1/partner/wallet-admissions`, which lets a new wallet open its account during the invite-only launch. Server to server, never in a browser, and never with an `Origin`. Public market reads need no credential. A credential only authenticates: every bet, cash-out and withdrawal also carries the wallet or maker signature the HyperEVM contract verifies. An external wallet sends `POST /v1/core-exits` to move its vault cash to HyperCore before a HyperCore order. For access, partner credentials (origins, browser and server keys), builder codes or staging, email [founders@totalis.trade](mailto:founders@totalis.trade). Amounts are base-10 strings in native USDC atomic units, large identifiers are decimal strings, and every command `POST` requires an `Idempotency-Key` header. Every error is `{error: {code, message, retry, request_id, field_violations}}`. `code` is stable; each operation lists the codes it returns per status. `retry` is `NEVER` (stop), `BACKOFF` (resend the same request with the same `Idempotency-Key` after `Retry-After` seconds) or `REFRESH` (re-read state, then send a new request with a new key). `field_violations` names invalid inputs by JSON pointer, such as `/legs/0/side`. version: 152.0.0-maker-withdrawal servers: - url: https://hip4-api.totalis.trade description: Production public edge security: [] tags: - name: Markets description: HIP-4 markets, their sides and price history. No API key needed. - name: RFQs & Quotes description: >- RFQs and the quotes that answer them: what a taker calls, then what a maker calls. - name: Positions description: Positions the account holds, or its maker backs. - name: Account description: >- The account a key acts for: identity, balances, activity, operations, withdrawals, deposits and HyperCore exits. - name: Makers description: 'The rest of a maker''s setup after Making: capital and collateral.' - name: Partners & wallet sign-in description: >- A partner admits its users' own wallets, which sign in from the partner's pages. - name: API keys description: >- Issue, rotate and revoke scoped keys from a wallet session. An API key cannot manage keys. - name: Deployment description: The contract deployment every signature is made against. - name: WebSocket description: The authenticated WebSocket for account and maker updates. paths: /v1/auth/wallet-challenges: post: tags: - Partners & wallet sign-in summary: Create wallet challenge description: >- Starts signing in a user's own wallet from a partner's web page, returning the exact EIP-4361 message to sign with personal_sign. No API key required. operationId: createWalletChallenge parameters: - $ref: '#/components/parameters/IdempotencyKey' requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/WalletChallengeRequest' example: address: '0x1111111111111111111111111111111111111111' origin: https://app.partner.example responses: '201': description: Challenge to sign content: application/json: schema: $ref: '#/components/schemas/WalletChallenge' example: challenge_id: 0199a1b2-c3d4-7e5f-8a6b-7c8d9e0f1a2b message: >- app.partner.example wants you to sign in with your Ethereum account: 0x1111111111111111111111111111111111111111 Create a Totalis venue transport session. This does not authorize a financial action. URI: https://app.partner.example Version: 1 Chain ID: 999 Nonce: 8d3f2a1c9b7e4f608d3f2a1c9b7e4f608d3f2a1c9b7e4f608d3f2a1c9b7e4f60 Issued At: 2026-10-16T12:00:00Z Expiration Time: 2026-10-16T12:05:00Z Request ID: 0199a1b2-c3d4-7e5f-8a6b-7c8d9e0f1a2c issued_at: '2026-10-16T12:00:00Z' expires_at: '2026-10-16T12:05:00Z' '400': description: >- Send exactly one `Origin` header, equal to the body's `origin`, and no `Authorization` header. - `INVALID_REQUEST` (retry `NEVER`): The body, a path parameter or a header is malformed or fails validation. `field_violations` names invalid body fields. - `INVALID_IDEMPOTENCY_KEY` (retry `NEVER`): The command needs exactly one lowercase UUIDv7 `Idempotency-Key` header; confirm takes none. - `ORIGIN_REQUIRED` (retry `NEVER`): A browser route needs exactly one `Origin` header. content: application/json: schema: allOf: - $ref: '#/components/schemas/Error' '403': description: >- `ORIGIN_NOT_ALLOWED`: the `Origin` is not one Totalis allows to sign wallets in, such as a partner's registered origin. - `ORIGIN_NOT_ALLOWED` (retry `NEVER`): The browser origin is not allowed to call this route. content: application/json: schema: allOf: - $ref: '#/components/schemas/Error' '409': description: >- - `IDEMPOTENCY_KEY_REUSED` (retry `NEVER`): The idempotency key was already used with different input. - `STATE_CONFLICT` (retry `REFRESH`): The resource changed and no longer admits this request. content: application/json: schema: allOf: - $ref: '#/components/schemas/Error' '422': description: >- Sign-in is ECDSA only; the vault still accepts ERC-1271 signatures for financial actions. - `WALLET_CONTRACT_UNSUPPORTED` (retry `NEVER`): Wallet sign-in needs an externally owned account; this address holds contract code. content: application/json: schema: allOf: - $ref: '#/components/schemas/Error' '429': description: >- - `RATE_LIMITED` (retry `BACKOFF`): The request quota for this credential or route is exhausted. headers: Retry-After: $ref: '#/components/headers/RetryAfter' content: application/json: schema: allOf: - $ref: '#/components/schemas/Error' '503': description: >- - `AUTHORIZATION_UNAVAILABLE` (retry `BACKOFF`): Identity or credential authority storage is unavailable. headers: Retry-After: $ref: '#/components/headers/RetryAfter' content: application/json: schema: allOf: - $ref: '#/components/schemas/Error' security: - {} components: parameters: IdempotencyKey: name: Idempotency-Key in: header required: true schema: type: string format: uuid pattern: ^[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$ description: >- Lowercase UUIDv7 naming this command, unique per caller and route. A retry with the same key and body returns the original result; the same key with a different body returns `409 IDEMPOTENCY_KEY_REUSED`. example: 0198a6f6-82a5-7abc-9f2a-4f0fb437493e schemas: WalletChallengeRequest: description: >- Asks for a SIWE message proving control of an externally owned wallet. The message names the origin, chain, nonce and the Idempotency-Key as its Request ID, and expires after 5 minutes. type: object additionalProperties: false required: - address - origin properties: address: $ref: '#/components/schemas/NonZeroAddress' description: >- The wallet signing in. An address holding contract code is refused with WALLET_CONTRACT_UNSUPPORTED. origin: $ref: '#/components/schemas/Origin' description: Must equal the request's Origin header exactly. WalletChallenge: type: object additionalProperties: false required: - challenge_id - message - issued_at - expires_at properties: challenge_id: $ref: '#/components/schemas/Uuid' description: Send it with the signature to POST /v1/auth/wallet-sessions. message: type: string minLength: 1 description: The exact EIP-4361 message to sign with personal_sign. issued_at: $ref: '#/components/schemas/CommonTimestamp' description: When the challenge was issued, RFC 3339 UTC. expires_at: $ref: '#/components/schemas/CommonTimestamp' description: Five minutes after issued_at; exchange the signature before then. Error: additionalProperties: false properties: error: $ref: '#/components/schemas/ErrorDetail' description: The one error this request failed with. required: - error type: object NonZeroAddress: allOf: - $ref: '#/components/schemas/Address' description: Never `0x0000000000000000000000000000000000000000`. Origin: type: string format: uri pattern: ^https://[^/?#@]+$ maxLength: 255 Uuid: type: string format: uuid pattern: ^[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$ CommonTimestamp: type: string format: date-time pattern: ^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}([.][0-9]{1,9})?Z$ maxLength: 30 ErrorDetail: additionalProperties: false properties: code: $ref: '#/components/schemas/ErrorCode' description: Stable registered code; branch on this, not on message or status. field_violations: description: >- Each invalid input by JSON pointer; empty when the error is not about a specific input. items: $ref: '#/components/schemas/FieldViolation' type: array message: description: Human-readable; may change without notice. minLength: 1 type: string request_id: description: >- UUIDv7 of this request, also returned in the X-Request-ID header. Quote it when reporting a problem. format: uuid pattern: >- ^[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$ type: string retry: $ref: '#/components/schemas/Retry' description: What the caller should do next; fixed by the registry for each code. required: - code - message - retry - request_id - field_violations type: object Address: type: string pattern: ^0x[0-9a-fA-F]{40}$ format: eip55-address ErrorCode: description: >- Stable HTTP error code. Each code has one HTTP status and one retry value. enum: - INVALID_REQUEST - INVALID_QUERY - INVALID_CURSOR - INVALID_IDEMPOTENCY_KEY - ORIGIN_REQUIRED - SUBPROTOCOL_REQUIRED - UNSUPPORTED_BROWSE_CONTRACT - UNAUTHENTICATED - FORBIDDEN - ORIGIN_NOT_ALLOWED - ACCESS_REQUIRED - NOT_FOUND - IDENTITY_NOT_FOUND - QUOTE_NOT_FOUND - INVITE_CODE_NOT_FOUND - IDEMPOTENCY_KEY_REUSED - STATE_CONFLICT - INVITE_CODE_EXHAUSTED - STALE_CURSOR - CURSOR_EXPIRED - CURSOR_RESET - RECURRING_DEFINITION_CONFLICT - EMBEDDED_WALLET_CONFLICT - SECRET_UNAVAILABLE - ROTATION_IN_PROGRESS - TELEMETRY_CONFLICT - RFQ_NOT_CANCELLABLE - RFQ_NOT_OPEN - RFQ_GENERATION_STALE - RFQ_GENERATION_IN_FLIGHT - QUOTE_EXPIRED - QUOTE_CANCELLED - QUOTE_REPLACED - QUOTE_SIGNER_CHANGED - QUOTE_CAPACITY_EXCEEDED - CORE_ACCOUNT_NOT_READY - CORE_ACCOUNT_ACTIVATION_REQUIRED - CORE_EXIT_ABANDONED - CORE_MOVE_IN_FLIGHT - USERNAME_TAKEN - USERNAME_ALREADY_SET - INVALID_SIGNATURE - WALLET_CONTRACT_UNSUPPORTED - WRONG_AUTHORITY - KEY_LIMIT_REACHED - USERNAME_NOT_ALLOWED - RATE_LIMITED - CONNECTION_LIMIT - RFQ_INTENT_LIMIT - QUOTE_EXPOSURE_LIMIT - DEPENDENCY_STALE - AUTHORIZATION_UNAVAILABLE - SOURCE_UNAVAILABLE - CONTRACT_UNAVAILABLE - MARKET_DATA_UNAVAILABLE - BROWSE_UNAVAILABLE - FINANCIAL_ACTIONS_DISABLED - CORE_EXIT_UNAVAILABLE - COLLATERAL_REDUCTION_UNAVAILABLE - SPONSORSHIP_UNAVAILABLE - CONTRACT_SIGNATURE_OVERLOADED - QUOTE_EXPOSURE_STALE - COMBO_AUTOMATIC_DISABLED - EMBEDDED_WALLET_UNAVAILABLE - CONNECTION_DRAIN type: string FieldViolation: additionalProperties: false properties: code: description: >- REQUIRED: the input is missing. INVALID: it is present but malformed or out of range. UNEXPECTED: the input is not accepted here. enum: - REQUIRED - INVALID - UNEXPECTED type: string field: description: >- JSON pointer into the body, or into the query parameters as one flat object for requests without a body, for example /legs/0/stake or /limit. pattern: ^(/([^~/]|~[01])*)+$ type: string required: - field - code type: object Retry: description: >- NEVER: stop. BACKOFF: resend the same request with the same Idempotency-Key after Retry-After. REFRESH: re-read state, then send a new request with a new Idempotency-Key. enum: - NEVER - BACKOFF - REFRESH type: string headers: RetryAfter: description: Seconds to wait before resending the same request schema: type: integer minimum: 1 ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.