--- title: "General Info | Binance Open Platform" source: "https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info" fetched_at: "2026-01-27T05:28:15.359Z" --- # General Info ## General API Information[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - The following base endpoints are available: - **[https://api.binance.com](https://api.binance.com/)** - **[https://api1.binance.com](https://api1.binance.com/)** - **[https://api2.binance.com](https://api2.binance.com/)** - **[https://api3.binance.com](https://api3.binance.com/)** - **[https://api4.binance.com](https://api4.binance.com/)** - The last 4 endpoints in the point above (`api1`\-`api4`) might give better performance but have less stability. Please use whichever works best for your setup. - All endpoints return either a JSON object or array. - Data is returned in **ascending** order. Oldest first, newest last. - All time and timestamp related fields are in **milliseconds**. - The base endpoint **[https://data-api.binance.vision](https://data-api.binance.vision/)** can be used to access the following API endpoints that have `NONE` as security type: - [GET /api/v3/aggTrades](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/avgPrice](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/depth](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/exchangeInfo](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/klines](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/ping](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/ticker](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/ticker/24hr](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/ticker/bookTicker](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/ticker/price](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/time](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/trades](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [GET /api/v3/uiKlines](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) ### HTTP Return Codes[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - HTTP `4XX` return codes are used for malformed requests; the issue is on the sender's side. - HTTP `403` return code is used when the WAF Limit (Web Application Firewall) has been violated. - HTTP `409` return code is used when a cancelReplace order partially succeeds. (e.g. if the cancellation of the order fails but the new order placement succeeds.) - HTTP `429` return code is used when breaking a request rate limit. - HTTP `418` return code is used when an IP has been auto-banned for continuing to send requests after receiving `429` codes. - HTTP `5XX` return codes are used for internal errors; the issue is on Binance's side. It is important to **NOT** treat this as a failure operation; the execution status is **UNKNOWN** and could have been a success. ### Error Codes and Messages[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - If there is an error, the API will return an error with a message of the reason. > The error payload on API and SAPI is as follows: ``` { "code": -1121, "msg": "Invalid symbol."} ``` - Specific error codes and messages defined in [Error Codes](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info). ### General Information on Endpoints[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - For `GET` endpoints, parameters must be sent as a `query string`. - For `POST`, `PUT`, and `DELETE` endpoints, the parameters may be sent as a `query string` or in the `request body` with content type `application/x-www-form-urlencoded`. You may mix parameters between both the `query string` and `request body` if you wish to do so. - Parameters may be sent in any order. - If a parameter sent in both the `query string` and `request body`, the `query string` parameter will be used. --- ## LIMITS[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) ### General Info on Limits[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - The following `intervalLetter` values for headers: - SECOND => S - MINUTE => M - HOUR => H - DAY => D - `intervalNum` describes the amount of the interval. For example, `intervalNum` 5 with `intervalLetter` M means "Every 5 minutes". - The `/api/v3/exchangeInfo` `rateLimits` array contains objects related to the exchange's `RAW_REQUESTS`, `REQUEST_WEIGHT`, and `ORDERS` rate limits. These are further defined in the `ENUM definitions` section under `Rate limiters (rateLimitType)`. - A 429 will be returned when either request rate limit or order rate limit is violated. ### IP Limits[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - Every request will contain `X-MBX-USED-WEIGHT-(intervalNum)(intervalLetter)` in the response headers which has the current used weight for the IP for all request rate limiters defined. - Each route has a `weight` which determines for the number of requests each endpoint counts for. Heavier endpoints and endpoints that do operations on multiple symbols will have a heavier `weight`. - When a 429 is received, it's your obligation as an API to back off and not spam the API. - **Repeatedly violating rate limits and/or failing to back off after receiving 429s will result in an automated IP ban (HTTP status 418).** - IP bans are tracked and **scale in duration** for repeat offenders, **from 2 minutes to 3 days**. - A `Retry-After` header is sent with a 418 or 429 responses and will give the **number of seconds** required to wait, in the case of a 429, to prevent a ban, or, in the case of a 418, until the ban is over. - **The limits on the API are based on the IPs, not the API keys.** ### Order Rate Limits[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - Every successful order response will contain a `X-MBX-ORDER-COUNT-(intervalNum)(intervalLetter)` header which has the current order count for the account for all order rate limiters defined. - When the order count exceeds the limit, you will receive a 429 error without the `Retry-After` header. Please check the Order Rate Limit rules using `GET api/v3/exchangeInfo` and wait for reactivation accordingly. - Rejected/unsuccessful orders are not guaranteed to have `X-MBX-ORDER-COUNT-**` headers in the response. - **The order rate limit is counted against each account**. - To monitor order count usage, refer to GET `api/v3/rateLimit/order` ### Websocket Limits[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - WebSocket connections have a limit of 5 incoming messages per second. A message is considered: - A PING frame - A PONG frame - A JSON controlled message (e.g. subscribe, unsubscribe) - A connection that goes beyond the limit will be disconnected; IPs that are repeatedly disconnected may be banned. - A single connection can listen to a maximum of 1024 streams. - There is a limit of **300 connections per attempt every 5 minutes per IP**. ### /api/ and /sapi/ Limit Introduction[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) The `/api/*` and `/sapi/*` endpoints adopt either of two access limiting rules, IP limits or UID (account) limits. - Endpoints related to `/api/*`: - According to the two modes of IP and UID (account) limit, each are independent. - Endpoints share the 6000 per minute limit based on IP. - Responses contain the header `X-MBX-USED-WEIGHT-(intervalNum)(intervalLetter)`, defining the weight used by the current IP. - Successful order responses contain the header `X-MBX-ORDER-COUNT-(intervalNum)(intervalLetter)`, defining the order limit used by the UID. - Endpoints related to `/sapi/*`: - Endpoints are marked according to IP or UID limit and their corresponding weight value. - Each endpoint with IP limits has an independent 12000 per minute limit. - Each endpoint with UID limits has an independent 180000 per minute limit. - Responses from endpoints with IP limits contain the header `X-SAPI-USED-IP-WEIGHT-1M`, defining the weight used by the current IP. - Responses from endpoints with UID limits contain the header `X-SAPI-USED-UID-WEIGHT-1M`, defining the weight used by the current UID. --- ## Data Sources[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - The API system is asynchronous, so some delay in the response is normal and expected. - Each endpoint has a data source indicating where the data is being retrieved, and thus which endpoints have the most up-to-date response. These are the three sources, ordered by which is has the most up-to-date response to the one with potential delays in updates. - **Matching Engine** - the data is from the matching Engine - **Memory** - the data is from a server's local or external memory - **Database** - the data is taken directly from a database ## Endpoint security type[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - Each endpoint has a security type that determines how you will interact with it. This is stated next to the NAME of the endpoint. - If no security type is stated, assume the security type is NONE. - API-keys are passed into the Rest API via the `X-MBX-APIKEY` header. - API-keys and secret-keys **are case sensitive**. - API-keys can be configured to only access certain types of secure endpoints. For example, one API-key could be used for TRADE only, while another API-key can access everything except for TRADE routes. - By default, API-keys can access all secure routes. Security Type Description NONE Endpoint can be accessed freely. TRADE Endpoint requires sending a valid API-Key and signature. MARGIN Endpoint requires sending a valid API-Key and signature. USER\_DATA Endpoint requires sending a valid API-Key and signature. USER\_STREAM Endpoint requires sending a valid API-Key. MARKET\_DATA Endpoint requires sending a valid API-Key. - `TRADE`, `MARGIN` and `USER_DATA` endpoints are `SIGNED` endpoints. --- ## SIGNED (TRADE, USER\_DATA, AND MARGIN) Endpoint security[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - `SIGNED` endpoints require an additional parameter, `signature`, to be sent in the `query string` or `request body`. - Endpoints use `HMAC SHA256` signatures. The `HMAC SHA256 signature` is a keyed `HMAC SHA256` operation. Use your `secretKey` as the key and `totalParams` as the value for the HMAC operation. - The `signature` is **not case sensitive**. - `totalParams` is defined as the `query string` concatenated with the `request body`. ### Timing security[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - A `SIGNED` endpoint also requires a parameter, `timestamp`, to be sent which should be the millisecond timestamp of when the request was created and sent. - An additional parameter, `recvWindow`, may be sent to specify the number of milliseconds after `timestamp` the request is valid for. If `recvWindow` is not sent, **it defaults to 5000**. > The logic is as follows: ``` if (timestamp < (serverTime + 1000) && (serverTime - timestamp) <= recvWindow) { // process request } else { // reject request } ``` **Serious trading is about timing.** Networks can be unstable and unreliable, which can lead to requests taking varying amounts of time to reach the servers. With `recvWindow`, you can specify that the request must be processed within a certain number of milliseconds or be rejected by the server. ### SIGNED Endpoint Examples for POST /api/v3/order - HMAC Keys[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) Here is a step-by-step example of how to send a vaild signed payload from the Linux command line using `echo`, `openssl`, and `curl`. Key Value apiKey vmPUZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A secretKey NhqPtmdSJYdKjVHjA7PZj4Mge3R5YNiP1e3UZjInClVN65XAbvqqM6A7H5fATj0j Parameter Value symbol LTCBTC side BUY type LIMIT timeInForce GTC quantity 1 price 0.1 recvWindow 5000 timestamp 1499827319559 **Example 1: As a request body** > **Example 1** > **HMAC SHA256 signature:** ``` $ echo -n "symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559" | openssl dgst -sha256 -hmac "NhqPtmdSJYdKjVHjA7PZj4Mge3R5YNiP1e3UZjInClVN65XAbvqqM6A7H5fATj0j" (stdin)= c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71 ``` > **curl command:** ``` (HMAC SHA256) $ curl -H "X-MBX-APIKEY: vmPUZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A" -X POST 'https://api.binance.com/api/v3/order' -d 'symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559&signature=c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71' ``` - **requestBody:** symbol=LTCBTC &side=BUY &type=LIMIT &timeInForce=GTC &quantity=1 &price=0.1 &recvWindow=5000 ×tamp=1499827319559 **Example 2: As a query string** > **Example 2** > **HMAC SHA256 signature:** ``` $ echo -n "symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559" | openssl dgst -sha256 -hmac "NhqPtmdSJYdKjVHjA7PZj4Mge3R5YNiP1e3UZjInClVN65XAbvqqM6A7H5fATj0j" (stdin)= c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71 ``` > **curl command:** ``` (HMAC SHA256) $ curl -H "X-MBX-APIKEY: vmPUZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A" -X POST 'https://api.binance.com/api/v3/order?symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559&signature=c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71' ``` - **queryString:** symbol=LTCBTC &side=BUY &type=LIMIT &timeInForce=GTC &quantity=1 &price=0.1 &recvWindow=5000 ×tamp=1499827319559 **Example 3: Mixed query string and request body** > **Example 3** > **HMAC SHA256 signature:** ``` $ echo -n "symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTCquantity=1&price=0.1&recvWindow=5000×tamp=1499827319559" | openssl dgst -sha256 -hmac "NhqPtmdSJYdKjVHjA7PZj4Mge3R5YNiP1e3UZjInClVN65XAbvqqM6A7H5fATj0j" (stdin)= 0fd168b8ddb4876a0358a8d14d0c9f3da0e9b20c5d52b2a00fcf7d1c602f9a77 ``` > **curl command:** ``` (HMAC SHA256) $ curl -H "X-MBX-APIKEY: vmPUZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A" -X POST 'https://api.binance.com/api/v3/order?symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC' -d 'quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559&signature=0fd168b8ddb4876a0358a8d14d0c9f3da0e9b20c5d52b2a00fcf7d1c602f9a77' ``` - **queryString:** symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC - **requestBody:** quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559 Note that the signature is different in example 3. There is no & between "GTC" and "quantity=1". ### SIGNED Endpoint Example for POST /api/v3/order - RSA Keys[​](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - This will be a step by step process how to create the signature payload to send a valid signed payload. - We support `PKCS#8` currently. - To get your API key, you need to upload your RSA Public Key to your account and a corresponding API key will be provided for you. For this example, the private key will be referenced as `test-prv-key.pem` Key Value apiKey CAvIjXy3F44yW6Pou5k8Dy1swsYDWJZLeoK2r8G4cFDnE9nosRppc2eKc1T8TRTQ Parameter Value symbol BTCUSDT side SELL type LIMIT timeInForce GTC quantity 1 price 0.2 recvWindow 5000 timestamp 1668481559918 > **Signature payload (with the listed parameters):** ``` symbol=BTCUSDT&side=SELL&type=LIMIT&timeInForce=GTC&quantity=1&price=0.2×tamp=1668481559918&recvWindow=5000 ``` **Step 1: Construct the payload** Arrange the list of parameters into a string. Separate each parameter with a `&`. **Step 2: Compute the signature:** 2.1 - Encode signature payload as ASCII data. > **Step 2.2** ``` $ echo -n 'symbol=BTCUSDT&side=SELL&type=LIMIT&timeInForce=GTC&quantity=1&price=0.2×tamp=1668481559918&recvWindow=5000' | openssl dgst -sha256 -sign ./test-prv-key.pem ``` 2.2 - Sign payload using RSASSA-PKCS1-v1\_5 algorithm with SHA-256 hash function. > **Step 2.3** ``` $ echo -n 'symbol=BTCUSDT&side=SELL&type=LIMIT&timeInForce=GTC&quantity=1&price=0.2×tamp=1668481559918&recvWindow=5000' | openssl dgst -sha256 -sign ./test-prv-key.pem | openssl enc -base64 -AHZ8HOjiJ1s/igS9JA+n7+7Ti/ihtkRF5BIWcPIEluJP6tlbFM/Bf44LfZka/iemtahZAZzcO9TnI5uaXh3++lrqtNonCwp6/245UFWkiW1elpgtVAmJPbogcAv6rSlokztAfWk296ZJXzRDYAtzGH0gq7CgSJKfH+XxaCmR0WcvlKjNQnp12/eKXJYO4tDap8UCBLuyxDnR7oJKLHQHJLP0r0EAVOOSIbrFang/1WOq+Jaq4Efc4XpnTgnwlBbWTmhWDR1pvS9iVEzcSYLHT/fNnMRxFc7u+j3qI//5yuGuu14KR0MuQKKCSpViieD+fIti46sxPTsjSemoUKp0oXA== ``` 2.3 - Encode output as base64 string. > **Step 2.4** ``` HZ8HOjiJ1s%2FigS9JA%2Bn7%2B7Ti%2FihtkRF5BIWcPIEluJP6tlbFM%2FBf44LfZka%2FiemtahZAZzcO9TnI5uaXh3%2B%2BlrqtNonCwp6%2F245UFWkiW1elpgtVAmJPbogcAv6rSlokztAfWk296ZJXzRDYAtzGH0gq7CgSJKfH%2BXxaCmR0WcvlKjNQnp12%2FeKXJYO4tDap8UCBLuyxDnR7oJKLHQHJLP0r0EAVOOSIbrFang%2F1WOq%2BJaq4Efc4XpnTgnwlBbWTmhWDR1pvS9iVEzcSYLHT%2FfNnMRxFc7u%2Bj3qI%2F%2F5yuGuu14KR0MuQKKCSpViieD%2BfIti46sxPTsjSemoUKp0oXA%3D%3D ``` 2.4 - Since the signature may contain `/` and `=`, this could cause issues with sending the request. So the signature has to be URL encoded. > **Step 2.5** ``` curl -H "X-MBX-APIKEY: CAvIjXy3F44yW6Pou5k8Dy1swsYDWJZLeoK2r8G4cFDnE9nosRppc2eKc1T8TRTQ" -X POST 'https://api.binance.com/api/v3/order?symbol=BTCUSDT&side=SELL&type=LIMIT&timeInForce=GTC&quantity=1&price=0.2×tamp=1668481559918recvWindow=5000&signature=HZ8HOjiJ1s%2FigS9JA%2Bn7%2B7Ti%2FihtkRF5BIWcPIEluJP6tlbFM%2FBf44LfZka%2FiemtahZAZzcO9TnI5uaXh3%2B%2BlrqtNonCwp6%2F245UFWkiW1elpgtVAmJPbogcAv6rSlokztAfWk296ZJXzRDYAtzGH0gq7CgSJKfH%2BXxaCmR0WcvlKjNQnp12%2FeKXJYO4tDap8UCBLuyxDnR7oJKLHQHJLP0r0EAVOOSIbrFang%2F1WOq%2BJaq4Efc4XpnTgnwlBbWTmhWDR1pvS9iVEzcSYLHT%2FfNnMRxFc7u%2Bj3qI%2F%2F5yuGuu14KR0MuQKKCSpViieD%2BfIti46sxPTsjSemoUKp0oXA%3D%3D' ``` 2.5 - curl command > **Bash script** ``` #!/usr/bin/env bash# Set up authentication:API_KEY="put your own API Key here"PRIVATE_KEY_PATH="test-prv-key.pem"# Set up the request:API_METHOD="POST"API_CALL="api/v3/order"API_PARAMS="symbol=BTCUSDT&side=SELL&type=LIMIT&timeInForce=GTC&quantity=1&price=0.2"# Sign the request:timestamp=$(date +%s000)api_params_with_timestamp="$API_PARAMS×tamp=$timestamp"signature=$(echo -n "$api_params_with_timestamp" \ | openssl dgst -sha256 -sign "$PRIVATE_KEY_PATH" \ | openssl enc -base64 -A)# Send the request:curl -H "X-MBX-APIKEY: $API_KEY" -X "$API_METHOD" \ "https://api.binance.com/$API_CALL?$api_params_with_timestamp" \ --data-urlencode "signature=$signature" ``` A sample Bash script containing similar steps is available in the right side. - [General API Information](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [HTTP Return Codes](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [Error Codes and Messages](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [General Information on Endpoints](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [LIMITS](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [General Info on Limits](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [IP Limits](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [Order Rate Limits](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [Websocket Limits](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [/api/ and /sapi/ Limit Introduction](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [Data Sources](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [Endpoint security type](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [SIGNED (TRADE, USER\_DATA, AND MARGIN) Endpoint security](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [Timing security](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [SIGNED Endpoint Examples for POST /api/v3/order - HMAC Keys](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info) - [SIGNED Endpoint Example for POST /api/v3/order - RSA Keys](https://developers.binance.com/docs/derivatives/portfolio-margin-pro/general-info)