From 2b7f3dd81a3a68e1b4ed213cdf33c250aea2a02d Mon Sep 17 00:00:00 2001
From: Zishan AM <10348348+zimoh@users.noreply.github.com>
Date: Thu, 6 Aug 2026 22:51:44 +0200
Subject: [PATCH] =?UTF-8?q?Add=20postbridge=20plugin=20=E2=80=94=20postal?=
 =?UTF-8?q?=20execution=20layer=20for=20AI=20agents?=
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Adds PostBridge (https://postbridge.ai) to the marketplace: quote, send,
track, and prove physical letters from any Copilot surface.

- Source: PostbridgeAI/postbridge-agent-plugin (repo root, Agent Plugins
  1.0.0 conformant — validated against the official plugin.json and
  mcp.json schemas).
- Components: remote streamable-http MCP server (api.postbridge.ai/mcp,
  subscription-backed API-key auth) + 3 skills (send-letter,
  track-and-proof, wallet).
- No credentials in the package; keys are injected client-side.
- MIT licensed.
---
 .github/plugin/marketplace.json | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/.github/plugin/marketplace.json b/.github/plugin/marketplace.json
index deba3ab..8463414 100644
--- a/.github/plugin/marketplace.json
+++ b/.github/plugin/marketplace.json
@@ -447,6 +447,31 @@
         "flowagent"
       ],
       "license": "MIT"
+    },
+    {
+      "name": "postbridge",
+      "description": "Postal execution layer: quote, send, track, and prove physical letters from any AI agent. Remote MCP server (Streamable HTTP) with subscription-backed API-key auth, plus skills for send/track/proof workflows.",
+      "version": "0.1.0",
+      "author": {
+        "name": "PostBridge",
+        "url": "https://postbridge.ai"
+      },
+      "homepage": "https://postbridge.ai",
+      "keywords": [
+        "postal",
+        "mail",
+        "letters",
+        "certified-mail",
+        "proof-of-delivery",
+        "postbridge",
+        "mcp"
+      ],
+      "license": "MIT",
+      "repository": "https://github.com/PostbridgeAI/postbridge-agent-plugin",
+      "source": {
+        "source": "github",
+        "repo": "PostbridgeAI/postbridge-agent-plugin"
+      }
     }
   ]
 }