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Express Connect:API overview

Last Updated:Jun 18, 2026

API standard and pre-built SDKs in multi-language

The OpenAPI specification of this product (Vpc/2016-04-28) follows the RPC standard. Alibaba Cloud provides pre-built SDKs for popular programming languages to abstract low-level complexities such as request signing. This enables developers to call APIs using language-specific syntax without dealing with HTTP details directly.

Custom signature

If your specific needs, such as a customized signature, are not supported by the SDK, manually sign requests using the signature mechanism. Note that manual signing requires significant effort (usually about 5 business days). For support, join our DingTalk group (ID: 147535001692).

Before you begin

An Alibaba Cloud account has full administrative privileges. A compromised AccessKey pair exposes all associated resources to unauthorized access, posing a significant security risk. To call APIs securely, create a Resource Access Management (RAM) user with API access only, configure its AccessKey pairs, and implement the principle of least privilege (PoLP) through RAM policies. Use the Alibaba Cloud account only when its permissions are explicitly required for specific scenarios.

Physical connection

API

Title

Description

Virtual physical connection Virtual physical connection
UpdateVirtualPhysicalConnection UpdateVirtualPhysicalConnection This operation modifies a virtual physical connection.
ListVirtualPhysicalConnections ListVirtualPhysicalConnections Call the ListVirtualPhysicalConnections operation to query virtual physical connections.
AssociateMacSecKey Associate MacSec Key This operation associates a MacSec key with a port on a dedicated physical connection. It uses dedicated encryption hardware, such as a NIC or switch, to perform low-latency encryption and decryption. It directly encrypts the physical link, such as a fiber optic or Ethernet cable, to protect all traffic from the sender to the receiver.
DisassociateMacSecKey Cancel association of MacSec key Disassociates a MACsec key from an Express Connect circuit.
CreatePhysicalConnection Request connection over an Express Connect circuit Invoke the CreatePhysicalConnection API to request connection over an Express Connect circuit.
CreatePhysicalConnectionOccupancyOrder Create a Resource Occupancy Fee Order Invoke the CreatePhysicalConnectionOccupancyOrder API to create an order for resource occupancy fees.
CreateHighReliablePhysicalConnection Create a highly reliable Express Connect circuit Create an Express Connect circuit in high-reliability mode to meet the stability requirements of your multi-line access to Alibaba Cloud services and enable disaster recovery across multiple lines, thereby avoiding service disruption caused by a single line failure.
EnablePhysicalConnection EnablePhysicalConnection Enables a physical connection in the Confirmed state. After the operation is complete, the connection enters the Enabled state.
DescribePhysicalConnections DescribePhysicalConnections Use the `DescribePhysicalConnections` API to query physical connections in a specific region.
ListPhysicalConnectionFeatures ListPhysicalConnectionFeatures Queries he connection features supported by a Express Connect circuit.
DescribePhysicalConnectionLOA DescribePhysicalConnectionLOA Use `DescribePhysicalConnectionLOA` to query the LOA for a physical connection.
ListBusinessRegions ListBusinessRegions Queries the list of regions available for an Express Connect circuit.
ListBusinessAccessPoints ListBusinessAccessPoints Queries the access points for Express Connect circuits.

VBR

API

Title

Description

ModifyVirtualBorderRouterAttribute Modify the configuration of a virtual border router (VBR) You can invoke the ModifyVirtualBorderRouterAttribute API to modify the configuration of a virtual border router (VBR).
DescribeVirtualBorderRouters Query created virtual border routers (VBRs) You can invoke the DescribeVirtualBorderRouters API to query created VBR instances.
DescribeGrantRulesToEcr DescribeGrantRulesToEcr Queries the cross-account authorization list of an Express Connect Router (ECR).
DescribeVirtualBorderRoutersForPhysicalConnection Query virtual border routers (VBRs) Query the virtual border routers (VBRs) under a specified Express Connect circuit, including VBRs owned by the Express Connect circuit owner and VBRs from other accounts.

Tag

API

Title

Description

DescribeTags DescribeTags Queries tags that meet the specified filter conditions.
DescribeTagKeys DescribeTagKeys Queries tag keys.

Router API

API

Title

Description

DeleteExpressConnect DeleteExpressConnect Deletes a Express Connect instance, including the initiator and acceptor.

Other

API

Title

Description

DescribeVpcGrantRulesToEcr DescribeVpcGrantRulesToEcr Queries the cross-account authorizations between a network instance and an Express Connect Router.
DeleteEnhancedVpnGateway Delete a specified enhanced VPN Gateway Deletes a specified enhanced VPN gateway.
UpdateEnhancedVpnGateway Modify the name, description, or automatic BGP route propagation feature of an enhanced VPN Gateway Call UpdateEnhancedVpnGateway to modify the name, description, or automatic route propagation of an enhanced VPN gateway.
CreateEnhancedVpnGateway Create an enhanced VPN Gateway Use the `CreateEnhancedVpnGateway` API to create an Enhanced VPN Gateway.