iOS Web Bluetooth (WebBLE)

@beacio/mcp

MCP server that teaches coding agents (Claude, Cursor, Copilot, …) how to ship iOS Safari Web Bluetooth with beacio.

Eleven tools (seven consumer + four developer), all offline, all citing canonical docs at https://beacio.com/docs-md/*.

Install

Run via npx — no install step needed:

npx -y @beacio/mcp

Or add it to your MCP client config (example: Claude Desktop, ~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "beacio": {
      "command": "npx",
      "args": ["-y", "@beacio/mcp"],
      "env": { "MCP_CLIENT": "claude-desktop" }
    }
  }
}

beacio scaffolding CLI

This package also ships the unscoped beacio CLI (formerly the standalone @beacio/cli) alongside the MCP server. It scaffolds and verifies beacio integration in a web project:

npx beacio init       # auto-detect framework and add the detection snippet
npx beacio migrate    # brownfield: patch an existing Web Bluetooth app for iOS Safari
npx beacio check      # verify beacio integration (add --brownfield for an existing app)

beacio migrate applies the same three edits the beacio_patch_existing_app MCP tool emits (single-sourced from one transform).

Tools

Consumer tools

Available in the default (consumer) mode for agents shipping the SDK into an app.

Tool	Purpose
beacio_install_plan	Canonical install steps + runnable snippet for html | react | vue | svelte | angular | next × npm | pnpm | yarn | bun | cdn.
beacio_patch_existing_app	Brownfield: concrete FileEdits to add iOS Safari support to an EXISTING Web Bluetooth app — bootstrap into <head> before the first navigator.bluetooth read, optionalServices onto the iOS requestDevice branch, and the "use Bluefy / Web BLE browser" message swapped for the install/enable affordance.
beacio_verify_integration	Agent-runnable checklist (shell commands + pass criteria) confirming the polyfill is installed, bootstrapped, builds, and resolves types — plus a brownfield mode for an already-written app.
beacio_example	Ready-to-paste code for a BLE profile: heart-rate, battery, cgm, lock, beacon, peripheral-chat.
beacio_detect_ios_support	Runtime detection snippet for navigator.bluetooth + window.beacioIOS, with every gotcha noted.
beacio_premium_guide	One of the iOS-only premium surfaces: backgroundSync, notifications, liveActivity, beacons, peripheral, whiteLabel.
beacio_troubleshoot	Diagnostic checklist + common fix for extension-not-detected, device-disconnects, gatt-operation-failed, notifications-not-firing.
beacio_spec_citation	W3C Web Bluetooth spec URL + summary + caveats for a given method (e.g. navigator.bluetooth.requestDevice).

Developer tools

Surfaced with --developer mode, for agents working inside the beacio monorepo itself.

Tool	Purpose
beacio_dev_best_practices	Read the project's AGENTS.md best-practices guide, optionally filtered by topic section.
beacio_dev_search_docs	Search the beacio documentation index by keyword; returns ranked results with beacio.com URLs.
beacio_dev_list_structure	Build a tree view of the monorepo directory structure (optional root path, depth 1-4, gitignore support).
beacio_dev_find_examples	Search a curated index of key source files; returns ranked matches with file path, line number, and category.

Every response is JSON with a source_url that points into https://beacio.com/docs-md/ so agents can cite authoritative docs.

Attribution token

beacio_install_plan returns an attribution_token of the form:

beacio_YYYYMM_mcp_<8..16 chars a–z0–9>

Example: beacio_202604_mcp_3p9xq2k8m4r

This token is accepted by the beacio beacon endpoint so installs originating from this MCP server are attributable. Share the token with the user unchanged — do not modify, truncate, or regenerate it.

Telemetry

Each tool call POSTs a minimal event to https://mcp-telemetry.beacio.com/mcp-telemetry (telemetry is enabled by default):

{
  "tool": "beacio_install_plan",
  "client_name": "claude-desktop",
  "client_version": "1.2.3",
  "success": true,
  "duration_ms": 42,
  "attribution_token": "beacio_202604_mcp_3p9xq2k8m4r"
}

No device data, no BLE payloads, no user input is ever sent. Fire-and-forget, 1-second timeout.

Opt out: telemetry is on by default; disable it by setting BEACIO_MCP_TELEMETRY to 0, false, off, or no (case-insensitive), or by setting the cross-tool DO_NOT_TRACK=1.

Identify your client: set MCP_CLIENT (e.g. claude-desktop, cursor, copilot-cli). Defaults to an empty string. Optionally set MCP_CLIENT_VERSION (defaults to empty string).

Links

• Homepage: https://beacio.com/mcp
• Docs (machine-readable): https://beacio.com/docs-md/
• Source: https://github.com/wklm/beacio-sdk/tree/main/packages/mcp
• Issues: https://github.com/wklm/beacio-sdk/issues
• Which beacio package should I install? packages/AGENTS.md

License

MIT © wklm