---
schema_version: "1"
id: dcc5864d0636a8d4d2bb71e0d7c05db5db72225599c17132d8d8dfd67f749275
title: A2A Connector 2.0 XML and Maven Support
collection: mulesoft
version: current
locale: en-us
portal_url: https://docs.salesforce.com/mulesoft/current/en-us/a2a-connector/latest/a2a-connector-xml-maven.md
canonical_url: https://docs.mulesoft.com/a2a-connector/latest/a2a-connector-xml-maven
source_site: docs.mulesoft.com
content_type: documentation
content_hash: d03a8a0fae4fd23dc8c3902b3ac19e483fec3754604b05b91ebab1c61331a1a7
description: MuleSoft Documentation Site
release: "2.0"
latest: true
---
---
product: A2A Connector
version: 2.0
is-latest-version: true
---

# A2A Connector 2.0 XML and Maven Support

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

Although you can manually code a Mule app in XML, it is more efficient to use Anypoint Code Builder
or Studio:

- If you manually code a Mule runtime engine (Mule) app in XML, either from the Anypoint Code
  Builder or Studio XML editor, or from a text editor, you can access the connector from your app by
  adding reference statements to both your XML Mule flow and the Apache Maven `pom.xml` file.

- If you add the connector in Anypoint Code Builder or Studio, the XML is automatically populated
  the code with the connector’s namespace and schema location and it also adds a dependency to the
  `pom.xml` file.

## Add a Namespace for the Connector

Paste the following code inside the `mule` tag of the header of your configuration XML:

```xml
http://www.mulesoft.org/schema/mule/a2a
http://www.mulesoft.org/schema/mule/a2a/current/mule-a2a.xsd
```

This example shows how the namespace statements are placed in the `<mule>` XML block:

```xml
<mule xmlns:a2a="http://www.mulesoft.org/schema/mule/a2a"
	xmlns:ee="http://www.mulesoft.org/schema/mule/ee/core"
	xmlns:http="http://www.mulesoft.org/schema/mule/http"
	xmlns:file="http://www.mulesoft.org/schema/mule/file"
	xmlns="http://www.mulesoft.org/schema/mule/core"
	xmlns:doc="http://www.mulesoft.org/schema/mule/documentation"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.mulesoft.org/schema/mule/core
	http://www.mulesoft.org/schema/mule/core/current/mule.xsd
	http://www.mulesoft.org/schema/mule/file
	http://www.mulesoft.org/schema/mule/file/current/mule-file.xsd
	http://www.mulesoft.org/schema/mule/http
	http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd
	http://www.mulesoft.org/schema/mule/ee/core
	http://www.mulesoft.org/schema/mule/ee/core/current/mule-ee.xsd
	http://www.mulesoft.org/schema/mule/a2a
	http://www.mulesoft.org/schema/mule/a2a/current/mule-a2a.xsd">
```

## Add a POM File Dependency

The Apache Maven `pom.xml` file generated by Anypoint Studio contains dependencies for a Mule app.
If you code a Mule app manually, include this XML snippet in your `pom.xml` file to enable access to
this connector:

```xml
<dependency>
  <groupId>com.mulesoft.connectors</groupId>
  <artifactId>mule4-a2a-connector</artifactId>
  <version>x.x.x</version>
  <classifier>mule-plugin</classifier>
</dependency>
```

Replace `x.x.x` with the version that corresponds to the connector you are using.

To obtain the most up-to-date `pom.xml` file information:

1.  Go to [Anypoint Exchange](https://www.mulesoft.com/exchange/).

2.  In Exchange, click **Login** and supply your Anypoint Platform username and password.

3.  In Exchange, search for `a2a`.

4.  Select the connector.

5.  Click **Dependency Snippets** near the upper right of the screen.

## Update Maven Plugin Version

A2A Connector requires Mule Maven Plugin 4.6.0 or later to support Server-Sent Events (SSE) for
streaming operations. Update your project’s `pom.xml` file to include this version:

```xml
<properties>
    <app.runtime>4.9.8</app.runtime>
    <mule.maven.plugin.version>4.6.0</mule.maven.plugin.version>
</properties>
```

Without this update, you might encounter classloading errors related to
`org.mule.runtime.http.api.sse.server.SseClient` when deploying applications that use streaming
features.

## Next Step

After completing your namespace and pom.xml file, you can try the
[Examples](https://docs.mulesoft.com/a2a-connector/latest/a2a-connector-examples).

## See Also

- [Introduction to Anypoint Connectors](https://docs.mulesoft.com/connectors/introduction/introduction-to-anypoint-connectors)

- [Salesforce Help](https://help.salesforce.com)