Who should use UserScript MCP for Claude.ai?

UserScript MCP for Claude.ai is an open-source project built for developers and browser automation users.

Does UserScript MCP for Claude.ai have a free plan?

Yes — UserScript MCP for Claude.ai is open source under the Open Source license and free to use.

What platforms does UserScript MCP for Claude.ai run on?

UserScript MCP for Claude.ai runs on the web and embeddable surfaces. It can also be self-hosted.

Is UserScript MCP for Claude.ai still active?

Unverified. UserScript MCP for Claude.ai has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

Who makes UserScript MCP for Claude.ai?

UserScript MCP for Claude.ai is developed by losnappas.

How long has UserScript MCP for Claude.ai been around?

UserScript MCP for Claude.ai first shipped in 2025.

Is UserScript MCP for Claude.ai open source?

Yes — UserScript MCP for Claude.ai is open source under the Open Source license.

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UserScript MCP for Claude.ai

Name: UserScript MCP for Claude.ai
Author: losnappas

github.comInfrastructure

UserScript MCP for Claude.ai is an open-source browser extension that connects Claude.ai with userscript creation workflows. It is intended for developers and power users who want to generate or manage browser userscripts through Claude.ai.

Open SourceWebEmbeddableSelf-hosted

Visit github.com

Overview

5 features

In the Browser DevTools & extensions space, UserScript MCP for Claude.ai takes a focused approach. It focuses on creating and managing browser userscripts through Claude.ai without manually wiring the workflow. UserScript MCP for Claude.ai is an open-source project aimed at developers and browser automation users. The project is open source (Open Source). UserScript MCP for Claude.ai is available on the web and embeddable surfaces, and it can be self-hosted.

Behind UserScript MCP for Claude.ai is losnappas, and it first shipped in 2025. Key capabilities include userscript creation, claude.ai integration, and MCP support. It exposes integrations via an MCP server.

Summary written by a language model from the project’s public pages.

Userscript creation
Claude.ai integration
MCP support
Browser extension
Firefox support

Built with & integrations

AI providers

anthropic

Connectors

MCPchrome

Runs on

BrowserEmbeddableSelf-hosted

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed16 Sep · 19:07 UTC
UserScripts Claude.ai verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about UserScript MCP for Claude.ai

What does UserScript MCP for Claude.ai do?: UserScript MCP for Claude.ai focuses on creating and managing browser userscripts through Claude.ai without manually wiring the workflow. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use UserScript MCP for Claude.ai?: UserScript MCP for Claude.ai is an open-source project built for developers and browser automation users.
Does UserScript MCP for Claude.ai have a free plan?: Yes — UserScript MCP for Claude.ai is open source under the Open Source license and free to use.
What platforms does UserScript MCP for Claude.ai run on?: UserScript MCP for Claude.ai runs on the web and embeddable surfaces. It can also be self-hosted.
Is UserScript MCP for Claude.ai still active?: Unverified. UserScript MCP for Claude.ai has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
Who makes UserScript MCP for Claude.ai?: UserScript MCP for Claude.ai is developed by losnappas.
How long has UserScript MCP for Claude.ai been around?: UserScript MCP for Claude.ai first shipped in 2025.
Is UserScript MCP for Claude.ai open source?: Yes — UserScript MCP for Claude.ai is open source under the Open Source license.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
Built for: developers and browser automation users
Model: Open source
Solves: Creating and managing browser userscripts through Claude.ai without manually wiring the workflow.

Registered as

Firefox Add-ons: userscripts-claude-ai

Developer

losnappas

Index record

Indexed: 16 Sep 2026
Lifecycle: Alive
Last seen: 16 Sep 2026

Identity audit (13)

Slug: userscripts-claude-ai-github-com
Lifecycle state recorded: 16 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 16 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 16 Sep 2026
Canonical URL: https://github.com/losnappas/userscript-mcp-claude-webextension

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