> For the complete documentation index, see [llms.txt](https://docs.multimarkets.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.multimarkets.org/client-api.md).

# CLIENT API

- [Overview](https://docs.multimarkets.org/client-api/overview.md)
- [Access](https://docs.multimarkets.org/client-api/access.md)
- [Sign](https://docs.multimarkets.org/client-api/access/sign.md)
- [Request](https://docs.multimarkets.org/client-api/access/request.md)
- [Limit](https://docs.multimarkets.org/client-api/access/limit.md)
- [Error Code](https://docs.multimarkets.org/client-api/access/error-code.md): The error code returned by the interface exception can be found by referring to the error code to locate the problem
- [API Address](https://docs.multimarkets.org/client-api/access/api-address.md)
- [API Code](https://docs.multimarkets.org/client-api/access/api-code.md)
- [Login](https://docs.multimarkets.org/client-api/login.md): Trading client login authorization
- [Captcha](https://docs.multimarkets.org/client-api/login/captcha.md): Captcha
- [Customer](https://docs.multimarkets.org/client-api/customer.md): Customer
- [Customer registration](https://docs.multimarkets.org/client-api/customer/customer-registration.md)
- [Replacement Token](https://docs.multimarkets.org/client-api/customer/replacement-token.md)
- [API Management](https://docs.multimarkets.org/client-api/customer/api-management.md)
- [Apply API](https://docs.multimarkets.org/client-api/customer/api-management/apply-api.md)
- [Set permissions](https://docs.multimarkets.org/client-api/customer/api-management/set-permissions.md)
- [Delete API](https://docs.multimarkets.org/client-api/customer/api-management/delete-api.md)
- [Market Data](https://docs.multimarkets.org/client-api/market-data.md)
- [Introduction](https://docs.multimarkets.org/client-api/market-data/introduction.md)
- [Limit](https://docs.multimarkets.org/client-api/market-data/limit.md): Limit
- [Error Code](https://docs.multimarkets.org/client-api/market-data/error-code.md): Code
- [Subscribe](https://docs.multimarkets.org/client-api/market-data/subscribe.md)
- [Ticker](https://docs.multimarkets.org/client-api/market-data/subscribe/ticker.md)
- [Market](https://docs.multimarkets.org/client-api/market-data/subscribe/market.md): MarketQuoteMarket
- [Cancel](https://docs.multimarkets.org/client-api/market-data/subscribe/cancel.md)
- [Query](https://docs.multimarkets.org/client-api/market-data/query.md)
- [Heartbeat](https://docs.multimarkets.org/client-api/market-data/query/heartbeat.md)
- [Historical K-line](https://docs.multimarkets.org/client-api/market-data/query/historical-k-line.md)
- [Open API](https://docs.multimarkets.org/client-api/open-api.md): Open
- [Readme](https://docs.multimarkets.org/client-api/open-api/readme.md)
- [Sign](https://docs.multimarkets.org/client-api/open-api/readme/sign.md): Sign
- [Request](https://docs.multimarkets.org/client-api/open-api/readme/request.md): Request
- [Error Code](https://docs.multimarkets.org/client-api/open-api/readme/error-code.md): Error Code
- [API Address](https://docs.multimarkets.org/client-api/open-api/readme/api-address.md): Address
- [Order Process](https://docs.multimarkets.org/client-api/open-api/order-process.md)
- [Base](https://docs.multimarkets.org/client-api/open-api/base.md): Base
- [Symbol Base Info](https://docs.multimarkets.org/client-api/open-api/base/symbol-base-info.md): Symbol Base Info
- [Customer](https://docs.multimarkets.org/client-api/open-api/customer.md): Customer
- [Customer Info](https://docs.multimarkets.org/client-api/open-api/customer/customer-info.md): Customer Info
- [Trade](https://docs.multimarkets.org/client-api/open-api/trade.md): Trade
- [Contract order](https://docs.multimarkets.org/client-api/open-api/trade/contract-order.md)
- [Message](https://docs.multimarkets.org/client-api/open-api/message.md): Message
- [Get Msg Token](https://docs.multimarkets.org/client-api/open-api/message/get-msg-token.md): Get Msg Token
- [Msg Subscribe](https://docs.multimarkets.org/client-api/open-api/message/msg-subscribe.md): Msg Subscribe
- [Get Msg Token](https://docs.multimarkets.org/client-api/open-api/message/get-msg-token-1.md): get Msg Token
- [Msg Subscribe](https://docs.multimarkets.org/client-api/open-api/message/msg-subscribe-1.md)
- [More...](https://docs.multimarkets.org/client-api/open-api/more....md): More
- [Auth2 API](https://docs.multimarkets.org/client-api/auth2-api.md): Auth2API
- [Readme](https://docs.multimarkets.org/client-api/auth2-api/readme.md)
- [Auth Code](https://docs.multimarkets.org/client-api/auth2-api/auth-code.md)
- [Access Token](https://docs.multimarkets.org/client-api/auth2-api/access-token.md)
- [User Info](https://docs.multimarkets.org/client-api/auth2-api/user-info.md)
- [Refresh Token](https://docs.multimarkets.org/client-api/auth2-api/refresh-token.md)
- [More...](https://docs.multimarkets.org/client-api/more....md): More
- [Basic](https://docs.multimarkets.org/client-api/more.../basic.md)
- [Customer/Basic](https://docs.multimarkets.org/client-api/more.../customer-basic.md)
- [Customer/Social](https://docs.multimarkets.org/client-api/more.../customer-social.md)
- [Customer/Auth](https://docs.multimarkets.org/client-api/more.../customer-auth.md)
- [Customer/Bank Card](https://docs.multimarkets.org/client-api/more.../customer-bank-card.md)
- [Customer/Extended](https://docs.multimarkets.org/client-api/more.../customer-extended.md)
- [Customer/Products](https://docs.multimarkets.org/client-api/more.../customer-products.md)
- [Customer/Wallet](https://docs.multimarkets.org/client-api/more.../customer-wallet.md)
- [Customer/Verification](https://docs.multimarkets.org/client-api/more.../customer-verification.md)
- [Customer/KYC](https://docs.multimarkets.org/client-api/more.../customer-kyc.md)
- [Customer/Open API](https://docs.multimarkets.org/client-api/more.../customer-open-api.md)
- [Customer/Agent](https://docs.multimarkets.org/client-api/more.../customer-agent.md)
- [Customer/Credit Card](https://docs.multimarkets.org/client-api/more.../customer-credit-card.md)
- [Message](https://docs.multimarkets.org/client-api/more.../message.md)
- [Funds/Deposit](https://docs.multimarkets.org/client-api/more.../funds-deposit.md)
- [Funds/Proposal](https://docs.multimarkets.org/client-api/more.../funds-proposal.md)
- [Funds/Rate](https://docs.multimarkets.org/client-api/more.../funds-rate.md)
- [Funds/Withdrawal](https://docs.multimarkets.org/client-api/more.../funds-withdrawal.md)
- [Trade/Full Margin Contract](https://docs.multimarkets.org/client-api/more.../trade-full-margin-contract.md)
- [Trade/Isolated Margin Contract](https://docs.multimarkets.org/client-api/more.../trade-isolated-margin-contract.md)
- [Trade/Leveraged](https://docs.multimarkets.org/client-api/more.../trade-leveraged.md)
- [Trade/Spot](https://docs.multimarkets.org/client-api/more.../trade-spot.md)
- [Trade/Stock](https://docs.multimarkets.org/client-api/more.../trade-stock.md)
- [Index/Report](https://docs.multimarkets.org/client-api/more.../index-report.md)
- [Index/Subscription](https://docs.multimarkets.org/client-api/more.../index-subscription.md)
- [Index/Management](https://docs.multimarkets.org/client-api/more.../index-management.md)
- [Index/Query](https://docs.multimarkets.org/client-api/more.../index-query.md)
- [Index/Redemption](https://docs.multimarkets.org/client-api/more.../index-redemption.md)
- [Credit Card/Operation](https://docs.multimarkets.org/client-api/more.../credit-card-operation.md)
- [Credit Card/Query](https://docs.multimarkets.org/client-api/more.../credit-card-query.md)
- [External Settlement](https://docs.multimarkets.org/client-api/more.../external-settlement.md)
- [Market Maker](https://docs.multimarkets.org/client-api/more.../market-maker.md)
- [Models](https://docs.multimarkets.org/client-api/more.../models.md)