Add A2A agent card

.well-known/agent-card.json

@@ -0,0 +1,62 @@
+{
+  "protocolVersion": "0.3.0",
+  "name": "Surface",
+  "description": "Surface is the link-safety layer between an AI agent and the open web. Preflight a URL before opening it: unwraps short links, follows redirects, returns next=fetch or next=skip. MCP at https://nova-otter-delta-cloud.grok.me/mcp; HTTP POST https://nova-otter-delta-cloud.grok.me/v1/preflight. Free up to 1M requests/month. Contact: canada.site.ops@gmail.com",
+  "url": "https://nova-otter-delta-cloud.grok.me/mcp",
+  "preferredTransport": "JSONRPC",
+  "provider": {
+    "organization": "Surface (Canada Site Ops)",
+    "url": "https://otter-sand-wolf-spring.grok.me"
+  },
+  "version": "1.0.1",
+  "documentationUrl": "https://nova-otter-delta-cloud.grok.me/docs",
+  "capabilities": {
+    "streaming": false,
+    "pushNotifications": false
+  },
+  "securitySchemes": {
+    "bearer": {
+      "type": "http",
+      "scheme": "bearer",
+      "description": "Optional free key from POST /v1/keys"
+    }
+  },
+  "defaultInputModes": [
+    "application/json",
+    "text/plain"
+  ],
+  "defaultOutputModes": [
+    "application/json"
+  ],
+  "skills": [
+    {
+      "id": "preflight_url",
+      "name": "Preflight URL",
+      "description": "Unwrap a link and decide fetch or skip.",
+      "tags": [
+        "links",
+        "safety",
+        "redirects",
+        "preflight"
+      ],
+      "examples": [
+        "Should I open https://bit.ly/xyz?"
+      ]
+    },
+    {
+      "id": "inspect",
+      "name": "Inspect caller",
+      "description": "Classify a caller as bot, browser or script.",
+      "tags": [
+        "bot-detection",
+        "user-agent"
+      ]
+    }
+  ],
+  "additionalInterfaces": [
+    {
+      "url": "https://nova-otter-delta-cloud.grok.me/mcp",
+      "transport": "JSONRPC"
+    }
+  ]
+}