# 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)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.multimarkets.org/client-api.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.