feat: add Global Chat MCP Server

Cross-protocol AI agent discovery server. Search and register agents
across MCP, A2A, and agents.txt protocols. Aggregates 100K+ agents
from 15+ registries.

npm: @global-chat/mcp-server
Repository: https://github.com/nicobailon/global-chat
Signed-off-by: pumanitro <pumanitro@gmail.com>

Author: pumanitro

servers/io.global-chat-mcp-npx.json

@@ -0,0 +1,58 @@
+{
+  "$schema": "../schemas/server-definition.schema.json",
+  "id": "io.global-chat-mcp-npx",
+  "name": "Global Chat MCP Server",
+  "alias": "global-chat",
+  "description": "Cross-protocol AI agent discovery. Search and register agents across MCP, A2A, and agents.txt protocols. Aggregates 100K+ agents from 15+ registries into a single searchable interface.",
+  "icon": "https://global-chat.io/icon-512.png",
+  "schema_version": "2.1",
+  "categories": [
+    "developer-tools",
+    "search-web"
+  ],
+  "tags": [
+    "ai-agents",
+    "mcp",
+    "agent-discovery",
+    "agents-txt",
+    "a2a",
+    "registry",
+    "developer-tools"
+  ],
+
+  "transport": {
+    "type": "stdio",
+    "command": "npx",
+    "args": [
+      "-y",
+      "@global-chat/mcp-server"
+    ]
+  },
+
+  "auth": {
+    "type": "none"
+  },
+
+  "contributor": {
+    "name": "nicobailon",
+    "github": "nicobailon",
+    "url": "https://global-chat.io"
+  },
+
+  "links": {
+    "repository": "https://github.com/nicobailon/global-chat",
+    "homepage": "https://global-chat.io",
+    "documentation": "https://github.com/nicobailon/global-chat#mcp-server"
+  },
+
+  "platforms": [
+    "all"
+  ],
+
+  "capabilities": {
+    "tools": true,
+    "resources": false,
+    "prompts": false,
+    "read_only_mode": true
+  }
+}