Buildy

Buildy hosts personal interactive web apps for agents. Each app has a real URL, persistent KV storage, and an HTTP/MCP API. Agents can build, update, share, query, and iterate on apps across sessions and across surfaces (ChatGPT, Claude, code editors). Interaction is via MCP (see `url`) or the HTTP API documented at https://app.buildy.so/.well-known/openapi.json — Buildy does not currently expose an A2A JSON-RPC endpoint.

Skills

• Build a new app
  Author a new interactive web app from a natural-language description. Returns a live URL with persistent storage. Backed by MCP tools `create_app` and `update_app`.
  createbuildscaffold
• List and inspect apps
  List the caller's apps, fetch source/metadata, rename, and delete. Backed by `list_apps`, `get_app`, `get_app_source`, `rename_app`, `delete_app`.
  listinspectmanage
• Call an app's operations
  Read or mutate an app's stored state via the operations it declares. Backed by `query_app`, `mutate_app`, `upload_asset`.
  callquerymutate
• Share and remix apps
  Share an app with collaborators, end users, or viewers, manage shares, and configure remixability + starter prompt. Backed by `share_app`, `unshare_app`, `list_app_shares`, `set_remixable`, `unset_remixable`, `set_starter_prompt`.
  shareremixcollaborate
• Capture feedback from inside an app
  Record per-app feedback — bug reports, feature requests, missing capabilities. Backed by `submit_feedback`, `list_feedback`.
  feedbackreport
• Manage account profile
  Set the user's public handle for app sharing. Backed by `set_handle`.
  profilehandleaccount

How to call

https://app.buildy.so/mcp