This release adds 3 notable features for engineering teams evaluating rollout.
Published 2mo
MCP Browser & Automation
✓ No known CVEs patched
✓ No known CVEs patched in this version
Summary
AI summaryUpdates Port Clarification, Highlights, and Install across a mixed release.
Full changelog
FSB MCP 0.4.0 makes local installation simpler without changing how the browser extension pairs with the MCP server.
Highlights
- Added local Streamable HTTP mode for MCP clients that prefer a URL-based local server
- Added built-in helper commands:
setup,status,doctor, andwait-for-extension - Added shared runtime/bootstrap plumbing for stdio and HTTP entrypoints
- Added
server.jsonmetadata for MCP registry/discovery readiness - Kept the extension-side contract stable on
ws://localhost:7225
Install
Stdio
npx -y fsb-mcp-server
Local Streamable HTTP
npx -y fsb-mcp-server serve
Default endpoint:
http://127.0.0.1:7226/mcp
Port Clarification
ws://localhost:7225: existing extension bridge, unchangedhttp://127.0.0.1:7226/mcp: new optional local HTTP endpoint for MCP clients
Notes
- The npm package publishes the MCP server only, not the browser extension
- The FSB browser extension still needs to be installed and running
.mcpbpackaging is planned separately and is not part of this release
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About LakshmanTurlapati/FSB
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Beta — feedback welcome: [email protected]