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Development integration

Expo MCP server for Claude, Codex and Cursor

Work with Expo projects, builds and documentation. Connect the Expo MCP server to Toolstile once, then choose which of its tools Claude Code, Codex, Cursor and Claude Desktop may use.

Free plan available. Server credentials stay in Toolstile, not in agent configs.

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What your AI apps can do with Expo

  • Inspect EAS builds and updates
  • Search Expo documentation

Expo MCP tools

50 tools, taken from the publisher's documentation on 29 October 2026. The server decides what it offers and can add or rename tools at any time; after you connect, Toolstile shows the current list.

ToolWhat it does
read_documentationFetch one Expo docs page as markdown, paged by offset
search_documentationSearch Expo docs and return ranked page URLs (EAS paid plan)
usage_budget_getShow usage limits and remaining availability
usage_budget_createCreate a usage budget with user-approved limits
workflow_infoShow details of one EAS workflow run, including jobs, errors and artifacts
workflow_listList recent workflow runs for a project
workflow_logsGet workflow job logs, as a section summary then per section
workflow_runStart a workflow run from a git ref
workflow_cancelCancel a running workflow
workflow_validateValidate workflow YAML syntax and configuration
build_listList a project's EAS builds
build_infoShow the status and details of one build
build_logsGet logs for a completed build
build_submitSubmit a finished build to the App Store or Google Play
build_runStart a build from an eas.json profile; needs a connected GitHub repo
build_cancelCancel a queued or in-progress build
sandbox_stopRequest cancellation of a sandbox's job; may interrupt running commands
sandbox_listList sandboxes, newest first, with an optional status filter
sandbox_createCreate a billable EAS sandbox
sandbox_waitWait for a sandbox to reach running, stopped or errored
sandbox_execRun a shell command in a running sandbox
sandbox_write_stdinSend input to or read output from a sandbox command session
sandbox_artifact_createUpload one file from a sandbox as an artifact
sandbox_artifact_getGet an artifact with a fresh short-lived download URL
sandbox_artifact_listList a sandbox's artifacts, newest first
sandbox_read_fileRead a text or common image file from a sandbox
observe_versionsList app versions seen by EAS Observe with build and update IDs
observe_metrics_summaryCompare performance metrics by app version and platform
observe_metricsFind individual performance samples, such as the slowest events
observe_routesCompare navigation routes by time to render and time to interactive
observe_event_namesDiscover custom event names with counts and first and last seen times
observe_eventsRead custom events with properties, severity and session IDs
observe_sessionRead a session's metrics and logs
simulator_startStart a billed cloud EAS Simulator session
simulator_getGet a simulator session's status and dashboard URL
simulator_listList a project's simulator sessions
simulator_stopStop a simulator session
automation_tapTap the device by testID or coordinates
automation_take_screenshotCapture a full-screen device screenshot
automation_find_viewFind a view by testID or accessibility label
automation_typeType text into a field by testID or into the focused field
automation_scrollScroll the screen in a given direction
testflight_crashesList TestFlight crashes or return a full crash log
testflight_feedbackGet TestFlight screenshot feedback
appstore_reviewsGet public App Store reviews
appstore_reply_reviewPost or edit a public developer response to an App Store review
appstore_delete_review_responseDelete a developer response to an App Store review
playstore_crashesList Android Vitals crashes and ANRs or return a full report
playstore_reviewsGet recent Google Play reviews
playstore_reply_reviewPost or edit a developer reply to a Google Play review

Suggested access for each AI app

The documentation this list comes from doesn't mark Expo's tools as read-only or destructive. Read each tool's description and decide per app before allowing it.

Coding agent in Claude Code or Cursor. Allow the read tools so the agent can look things up without stopping, and require approval for tools that change shared data.

Chat or research app in Claude Desktop. Allow reading and searching. Allow writes only where you want the app to act for you.

Unattended agent, such as a scheduled Codex job. No one is watching the session, so keep it narrow: allow what the job needs, require approval for changes and block the rest.

Blocked tools are removed from the tool list an app sees, so it won't try them. Because rules apply per app, the same Expo connection can be broad in one app and read-only in another, and the credential stays in Toolstile instead of each app's config file.

How it works with Toolstile

  1. Connect once. Add Expo to a workspace (browser sign-in). Toolstile keeps the credential, so no agent config holds it.
  2. Choose access per app. Give Claude Code every Expo tool, give Cursor only the read tools, or keep Expo away from an app entirely.
  3. Share approved accounts. Teammates use the connection without copying tokens, and you can remove access in one place.
  4. Review activity. See which app called which tool and when, so you can tighten access with evidence.

Add the Expo MCP server to an AI app

Through Toolstile, every AI app uses one gateway entry, whichever servers you connect. In Claude Code:

Shell
claude mcp add --transport http toolstile 'https://toolstile.com/mcp'

Then connect Expo in your workspace and choose which of its tools that app may use. Client setup covers Codex, Cursor and Claude Desktop.

To connect directly instead, add the Expo endpoint to each app separately. In Claude Code:

Shell
claude mcp add --transport http expo 'https://mcp.expo.dev/mcp'

In Cursor's mcp.json:

JSON
{
  "mcpServers": {
    "expo": {
      "url": "https://mcp.expo.dev/mcp"
    }
  }
}

Some servers accept only clients they have approved, or need a token header. Check the Expo MCP documentation for what your client needs.

Before you connect

An Expo account. Sign-in uses your Expo permissions.

Server details

DetailValue
PublisherExpo
Endpointhttps://mcp.expo.dev/mcp
AuthenticationBrowser sign-in
CategoriesDevelopment
Tool list50 tools, observed 29 October 2026 (docs)

Expo MCP documentation