@extension.dev/mcp
MCP server that lets AI agents (Claude Code, Claude Desktop, Cursor, Copilot, Codex) build, run, inspect, and publish browser extensions. 32 tools for scaffolding, live DOM inspection, log streaming, and store-ready builds across Chrome, Edge, Firefox, Sa
npm · fingerprint 80d85b0ac6c70654f25aad97 · repository · RSS
32tools
1recorded versions
28mtracked
tracking started
What changed
Nothing, since tracking began. That is the good outcome, and it is what most servers look like.
Current tools
Show all 32 tool fingerprints
extension_add_feature
extension_analyze
extension_assert
extension_auth
extension_browsers
extension_build
extension_create
extension_dev
extension_docs_search
extension_doctor
extension_dom_snapshot
extension_eval
extension_inspect
extension_list_extensions
extension_logs
extension_manifest_validate
extension_open
extension_preview_web
extension_project_create
extension_publish
extension_release_promote
extension_release_status
extension_reload
extension_shares
extension_start
extension_stop
extension_storage
extension_submit
extension_templates
extension_theme_verify
extension_wait
extension_workspace_create
Watch this server yourself
If you run this server, put the proxy in front of it. It pins these exact fingerprints on first connect and stops the session if they move.
npx -y mcp-pin@0.2.3 -- <your @extension.dev/mcp command>
Or subscribe to this page's RSS feed to be told when it changes.
Badge
The badge states one fact about time and nothing else. It never claims a server is safe.
[](https://mcp-pin.gautamkhosla.com/servers/3caffcfbca855326.html)