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Migrate to MCP SDK 2.0 with official Protocol and isolated role peers (#720)

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App and AppBridge extend the public Protocol from @modelcontextprotocol/client; the iframe wire protocol (ui/initialize only) is unchanged. Peers move to the split SDK 2.0 packages with client and server as optional role peers. Fixups (lockfile, peer ranges, restored handler guards, docs, wire-compat tests) follow in a separate PR.

Co-authored-by: Andrew Khadder <andrew@manufact.com>
Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>
Closes #702
This commit is contained in:
Olivier Chafik 2026-09-08 12:44:49 +01:00 • committed by GitHub
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5
examples/basic-server-react/package.json
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@ -34,8 +34,11 @@
"prepublishOnly": "npm run build"
},
"dependencies": {
"@modelcontextprotocol/client": "2.0.0",
"@modelcontextprotocol/ext-apps": "^1.7.0",
"@modelcontextprotocol/sdk": "^1.29.0",
"@modelcontextprotocol/express": "2.0.0",
"@modelcontextprotocol/node": "2.0.0",
"@modelcontextprotocol/server": "2.0.0",
"cors": "^2.8.5",
"express": "^5.1.0",
"react": "^19.2.0",