unbrowse

Name: unbrowse
Author: unbrowse-ai

Verified

Unbrowse - Reverse engineer any website so that your agents can access its APIs directly

773stars

69forks

TypeScript

Installation

# Add to your Claude Code skills
git clone https://github.com/unbrowse-ai/unbrowse

Getting Started

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Security ReportVerified

Last scanned: 9/28/2026

{
  "issues": [],
  "status": "PASSED",
  "scannedAt": "2026-09-28T10:36:54.412Z",
  "npmAuditRan": false,
  "pipAuditRan": true,
  "promptInjectionRan": true
}

Compare with similar skills

See how unbrowse compares with popular alternatives.

unbrowse vs superpowers

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README.md

Frequently Asked Questions

What is unbrowse?

unbrowse is an open-source ai agents skill for AI coding assistants such as Claude Code, Codex CLI, and ChatGPT, built by unbrowse-ai. Unbrowse - Reverse engineer any website so that your agents can access its APIs directly. It has 773 GitHub stars.

Is unbrowse safe to use?

Yes. unbrowse passed SkillsLLM's automated security scan — a dependency vulnerability audit plus prompt-injection heuristics — with no high-severity issues. You can read the full report in the Security Report section on this page.

How do I install unbrowse?

Clone the repository with "git clone https://github.com/unbrowse-ai/unbrowse" and add it to your Claude Code skills directory (see the Installation section above).

What programming language is unbrowse written in?

unbrowse is primarily written in TypeScript. It is open-source under unbrowse-ai on GitHub, so you can review or fork the full source.

Are there alternatives to unbrowse?

Yes. SkillsLLM lists many other AI Agents skills you can browse and compare side by side. Open the AI Agents category from the badge at the top of this page, or use the Related Skills and comparison links further down to weigh unbrowse against similar tools.

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⚠️ Third-Party Software Notice

This skill is third-party open-source software developed and hosted independently on GitHub. SkillsLLM is an informational directory and does not control or maintain the underlying repository.

Any security checks, ratings, or warnings displayed by SkillsLLM are automated and limited in scope. They do not constitute a security certification or guarantee that the software is safe, error-free, or free from malicious code, vulnerabilities, compromised dependencies, or prompt-injection risks.

Review the source code, permissions, dependencies, and configuration before installing or running any third-party skill. Use is at your own risk. To the maximum extent permitted by applicable law, SkillsLLM is not liable for losses arising from third-party software.

Read the Terms of Service

Unbrowse

Every website, even those without an official API or MCP, still rely on a first party API to talk to their backend. Unbrowse calls these website's first party APIs to make agentic browsing 50-100x faster and 95% cheaper than using a browser.

This is the open-source client for the hosted Unbrowse service (https://unbrowse.ai): the @unbrowse/sdk TypeScript client for its REST API, and the unbrowse CLI built on it.

Install the agent skill:

npx skills add unbrowse-ai/unbrowse-skill --skill unbrowse

Connect your agent:

claude mcp add --transport http unbrowse https://unbrowse.ai/mcp

Complete OAuth sign-in in your client. For the CLI or SDK, use the pinned hosted-client release in the installation guide; npm latest may still target the older service.

Install · CLI · MCP · SDK · Troubleshooting

How it works

Discover. Unbrowse searches your private capabilities, then a public registry of sites already compiled into tools.
Run. A matching capability replays the site's own first-party HTTP requests. No browser. A run succeeds only when its result is verified.
Learn once. No match: an agent does the task in Unbrowse's recorded cloud browser (MCP), or you upload two HAR recordings (unbrowse learn). Unbrowse compiles the requests into a one-call capability. Next time is step 2.

Passwords stay in the Unbrowse password manager; the CLI never takes one.

More: docs/how-it-works.md · Paper: Internal APIs Are All You Need (arXiv:2604.00694)

Commands

unbrowse login [--key ub_live_…]    sign in (browser OAuth) or store an API key
unbrowse discover <query>           your capabilities, then the public registry
unbrowse run <task…> [--set k=v]    run a task from your IP (--from-unbrowse: from Unbrowse); waits for a verified result
unbrowse resume <runId> k=v…        answer what the run asked for, on the same run
unbrowse learn a.har b.har          compile two recordings into a capability
unbrowse logins                     saved logins, masked
unbrowse registry [query]           public compiled sites (no account)

All commands: docs/cli.md. Exit codes: 0 ok, 1 error, 2 input required, 3 sign-in or login needed, 4 not verified.

SDK

import { Unbrowse } from "@unbrowse/sdk";
const ub = new Unbrowse(); // UNBROWSE_API_KEY
const run = await ub.wait((await ub.run({ task: "top stories on Hacker News", idempotencyKey: crypto.randomUUID() })).runId);

Supported REST methods: docs/sdk.md.

Agents

Agents connect to the hosted MCP (https://unbrowse.ai/mcp, see docs/install.md) and follow skill/SKILL.md. The CLI is the REST alternative. unbrowse mcp runs a local stdio proxy to the hosted MCP for hosts that need stdio or plain tool names (unbrowse_scrape).

Plugins for Claude Code, Codex, Grok Build, OpenClaw, Hermes and elizaOS bundle the skill and make Unbrowse the host's browser: plugins/. Grok, ChatGPT, Claude, Perplexity, Le Chat and Gemini CLI connect as a custom connector: docs/connect.md.

Pricing

Check your current account plan and unbrowse usage for quota and pricing. docs/pricing.md

Develop

bun install
bun test packages     # SDK route tests + CLI tests against a local stand-in API
bun run typecheck
bun run build         # packages/sdk/dist, packages/cli/dist/cli.js (Node 18.17+)
bun run cli help

Release

CI/CD publishes on a version tag: docs/release.md.