mcp-websocket mcp

v1.0.0 · MCP Tool · networking · registry.pascalai.org

WebSocket and HTTP client. Operations: ws_connect (connect+send+receive WebSocket message), http_get, http_post. Supports custom headers and timeouts.

websocketwshttpnetworkingrealtime

Input Parameters

Parameter	Type	Description
operationrequired	string	ws_connect: connect to WebSocket, send message, receive response; http_get/http_post: make HTTP request. One of: `ws_connect`, `http_get`, `http_post`.
urlrequired	string	WebSocket URL (ws:// or wss://) or HTTP URL.
wsMessageoptional	string	Message to send over WebSocket.
headersoptional	string	JSON object of HTTP/WebSocket headers.
httpMethodoptional	string	HTTP method override (GET, POST, PUT, DELETE).
bodyoptional	string	HTTP request body for POST/PUT.
timeoutSecoptional	integer	Timeout in seconds (default: 10). Default: `10`.

Output Fields

Field	Type	Description
response	string
statusCode	integer
headers	object
ok	boolean
error	string

Examples

Send WebSocket message

// Input
{
  "operation": "ws_connect",
  "url": "ws://localhost:8080/ws",
  "wsMessage": "{\"type\":\"ping\"}",
  "timeoutSec": 5
}

// Output
{
  "response": "{\"type\":\"pong\"}",
  "ok": true
}

Install & Discovery

Install

ppm install mcp-websocket

Get JSON Schema

GET /v1/packages/mcp-websocket/1.0.0/schema

Discover by keyword

GET /v1/mcp/discover?q=websocket

Discovery hint: Install with ppm install mcp-websocket or invoke remotely via POST /v1/invoke/mcp-websocket on the MCP Service.

PascalAI Usage

uses toolslib;
var Tool := LoadTool('mcp-websocket');
var R := Tool.Call(JsonObj(['operation','http_get','url','https://api.example.com/health']));
Writeln(R.ToJSON);