Dexscreener Data Access Proxy Service

This minimal MCP server module furnishes data retrieval capabilities leveraging the Dexscreener API endpoints, adhering to the documentation accessible as of April 4th, 2025: https://docs.dexscreener.com/api/reference

Initial Configuration Procedure

Execute the following command to secure all requisite package dependencies:

npm run install

When utilizing the Claude Desktop environment, after successfully fetching the source code, you must modify the configuration file named claude_desktop_config.json within your preferred text editor (VSCode recommended):

• On macOS systems:

code ~/Library/Application\ Support/Claude/claude_desktop_config.json

• On Windows operating systems:

code $env:AppData\Claude\claude_desktop_config.json - Further instructional guidance is available here: https://modelcontextprotocol.io/quickstart/server

Within claude_desktop_config.json, integrate a dedicated configuration entry labeled dexscreener:

{
  "mcpServers": {
    "dexscreener": {
      "command": "node",
      "args": [
        "/ABSOLUTE/PATH/TO/PARENT/FOLDER/index.js"
      ]
    }
  }
}

Launching the Application

Testing the functionality of this MCP proxy can be accomplished directly via the Inspector tool, bypassing the need for the Claude Desktop application. This testing framework supports both the standard SDTIO protocol implementation and the alternative Server-Sent Events (SSE) version found in index-sse.js (which is suitable for hosting on external infrastructure).

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Contextual Background (XMLHttpRequest - XHR):

XHR represents a JavaScript object interface designed to dispatch HTTP requests asynchronously from a web browser to a remote server. This mechanism enables browser-based applications to initiate communication and receive subsequent data without forcing a full page reload—a core component of Ajax programming. Historically, server interaction relied predominantly on traditional hyperlink navigation or HTML form submissions, which inherently replaced the current view.

== Historical Development == The foundational concept for asynchronous HTTP communication was initially conceived in the year 2000 by developers associated with Microsoft Outlook. This concept first materialized in the Internet Explorer 5 browser release (1999). However, the initial implementation did not use the standardized XMLHttpRequest identifier; instead, developers relied on COM object instantiations such as ActiveXObject("Msxml2.XMLHTTP") or ActiveXObject("Microsoft.XMLHTTP"). By the release of Internet Explorer 7 (2006), broad browser compatibility was established for the universal XMLHttpRequest identifier. This identifier has since become the dominant convention across all major browser rendering engines, including Mozilla's Gecko (2002), Safari 1.2 (2004), and Opera 8.0 (2005).

=== Standardization Efforts === The World Wide Web Consortium (W3C) published the first formal Working Draft specification for the XMLHttpRequest object on April 5, 2006. A subsequent Level 2 specification followed on February 25, 2008, introducing capabilities for progress monitoring, enabling cross-site data transfers, and processing raw byte streams. By the conclusion of 2011, the features introduced in Level 2 were integrated back into the primary specification. Development transitioned to the WHATWG group at the end of 2012, which now maintains the active specification using the Web IDL descriptive language.

== Operational Workflow == Executing a network request using XHR typically requires adherence to several sequential programming actions:

1. Instantiation: Instantiate the XHR object by invoking its constructor method.
2. Configuration: Invoke the open() method to define the request method (GET, POST, etc.), specify the target Uniform Resource Identifier (URI), and determine whether the operation should be synchronous or asynchronous.
3. Event Handling (Async Only): For asynchronous operations, register a callback function designed to execute when the request state transitions occur.
4. Transmission: Start the request process by calling the send() method, optionally including data payload.
5. Response Processing: Monitor state changes within the registered event listener. Upon successful completion (state transitioning to 4, the "done" state), the server's returned payload is typically accessible via the responseText property.

Beyond these fundamental steps, XHR offers extensive control over request framing and response handling. Custom HTTP header fields can be injected to guide server processing. Data can be transmitted to the server within the send() call. Responses can be immediately parsed from formats like JSON into native JavaScript objects, or processed incrementally as data streams arrive rather than waiting for complete reception. Furthermore, requests can be terminated prematurely or configured with timeouts to prevent indefinite blocking.