# app.crawlio/crawlio-browser (npm · crawlio-browser)

Bridge a live Chrome browser to your agent: 150 tools for capture, extraction, and observation.

- Trust score: 69/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-18

## Components

- npm · `crawlio-browser`: 69/100 (this document), [markdown](https://verifymcp.io/servers/app-crawlio-crawlio-browser/crawlio-browser.md), [page](https://verifymcp.io/servers/app-crawlio-crawlio-browser/crawlio-browser)

## Channel facts

- Registry: `npm`
- Package: `crawlio-browser`
- Version: `1.11.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-18.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - Known CVEs were checked across the 98 of 100 dependencies we could resolve, so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Dependency health was assessed across the 98 of 100 dependencies we could resolve, so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 48/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 8 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 59/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 3059 tokens (~437/item across 7 items; 7 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 81/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 44% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add app-crawlio-crawlio-browser -- npx -y crawlio-browser
```

### Codex

```bash
codex mcp add app-crawlio-crawlio-browser -- npx -y crawlio-browser
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "app-crawlio-crawlio-browser": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "crawlio-browser"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add app-crawlio-crawlio-browser --command npx --arg -y --arg crawlio-browser
```

### Hermes

```yaml
mcp_servers:
  app-crawlio-crawlio-browser:
    command: "npx"
    args: ["-y", "crawlio-browser"]
```

### Other

```json
{
  "mcpServers": {
    "app-crawlio-crawlio-browser": {
      "command": "npx",
      "args": [
        "-y",
        "crawlio-browser"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-18 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-16 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-14 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-12 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-11 (score 65, +2)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-08-10 (score 63, −1)

- [functional regression] Schema quality: 2767 → 3059
- [functional regression] Tool coverage: 100% → 44%
- [functional improvement] Stability: unverified → 0.07
- [functional] Package version: 1.10.0 → 1.11.0

### 2026-08-08 (score 64, +25)

- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] MCP protocol: unverified → pass
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: good
- [functional] First check of Tool coverage: 100

### 2026-08-07 (score 39)

First indexed and scored.

## MCP tools (7)

### `search` (~96 tokens)

Search available commands by keyword — both browser automation (via bridge.send) and Crawlio HTTP endpoints (via crawlio.api). Returns matching command names, descriptions, and parameter schemas. Use this to discover what commands are available before writing execute() code.

Input parameters:

- `limit` (number): Max results (default: 10)
- `query` (string, required): Search keyword (e.g. 'screenshot', 'cookie', 'network', 'navigate')

### `execute` (~2328 tokens)

Execute JavaScript code with access to the browser bridge, Crawlio HTTP client, and smart object.
Use search() first to discover available commands and their parameters.

IMPORTANT WARNINGS:
\- smart.screenshot() does NOT exist. For screenshots: bridge.send({ type: 'take_screenshot' }).
\- For structured page evidence, prefer smart.extractPage() — runs 7 ops in parallel with typed gaps[].
\- capture_page returns a ~1KB shaped summary. For raw data, use stop_network_capture or get_console_logs.
\- Use smart.waitForIdle() instead of sleep(). Use smart.scrollCapture() instead of manual scroll loops.
\- Scope large snapshots with smart.snapshot({ compact: true, maxDepth: 8, selector: '#main' }); use { interactive: true } for controls only.
\- For cross-page navigation, use smart.navigate(url) — never location.href = "..." (breaks CDP).

Available in scope:
\- bridge.send(command, timeout?) — send command to browser extension via WebSocket
  command must have a `type` field matching a command name (e.g. { type: 'list_tabs' })
\- crawlio.api(method, path, body?) — generic HTTP to ControlServer
  e.g. await crawlio.api('GET', '/status')
  e.g. await crawlio.api('POST', '/start', { url: 'https://example.com' })
  e.g. await crawlio.api('POST', '/export', { format: 'zip', destinationPath: '/tmp/site.zip' })
  e.g. await crawlio.api('PATCH', '/settings', { settings: { maxConcurrent: 8 } })
  Returns { status: number, data: unknown }
\- crawlio.getStatus() — shortcut for GET /status
\- crawlio.startCrawl(url) — shortcut for POST /start
\- crawlio.getEnrichment(url?) — shortcut for GET /enrichment
\- crawlio.getCrawledURLs(params?) — shortcut for GET /crawled-urls
\- crawlio.postEnrichment(url, data) — shortcut for POST /enrichment/bundle
\- sleep(ms) — async wait (max 30s)
\- TIMEOUTS — per-command timeout constants
\- compileRecording(session, { name, description? }) — compile RecordingSession to SKILL.md
  Returns { skillMarkdown, name, pageCount, interactionCount }
\- ocrScreenshot(opts?)…

Input parameters:

- `background` (boolean): Run detached: returns { jobId } immediately and keeps executing server-side up to the sandbox cap (~120s). Poll get_job_result(jobId) for the result. Use for heavy/long runs (e.g. navigate + OCR) tha…
- `code` (string, required): Async JavaScript function body. Has bridge, crawlio, sleep, TIMEOUTS, smart, compileRecording, ocrScreenshot, saveArtifact in scope. Must return a value (for bulk data, saveArtifact to disk and retur…
- `tabId` (number): Target tab id from list_tabs. Every bridge.send in the script that does not name its own tabId runs against this tab (default: the connected tab).

### `observe` (~242 tokens)

Manage extension-resident observation. Actions: training_start, training_status, training_stop, training_clear, training_artifacts; recording_start, recording_status, recording_stop, recording_clear, recording_artifacts (RecordingBundle aliases); monitor_start, monitor_status, monitor_results, monitor_stop, monitor_clear. Training and monitors continue while MCP is disconnected; stop materializes canonical files and confirmed clear deletes only Chrome-retained records.

Input parameters:

- `action` (string, required)
- `active` (boolean): Open the training tab in the foreground (default true)
- `bundleID` (string)
- `captureStorageValues` (boolean)
- `closeTab` (boolean)
- `confirm` (boolean): Must be true for training_clear/recording_clear
- `fetchBodies` (boolean)
- `includeSnapshot` (boolean)
- `intervalMinutes` (number)
- `label` (string)
- `limit` (number)
- `maxDurationSec` (number)
- `maxInteractions` (number)
- `monitorId` (string)
- `outputDir` (string)
- `runId` (string)
- `url` (string)

### `get_job_result` (~117 tokens)

Poll a background execute job by jobId (returned by execute({ background: true })). Returns { status: running|done|error|cancelled, value?, console?, error?, ageMs, runtimeMs? }, or { status: 'not_found' } if unknown/expired (finished jobs are kept ~10 min). phase/percent come from reportPhase(name, percent) calls inside the job; phases is the recent timeline while it is still running.

Input parameters:

- `jobId` (string, required): Job id from execute({ background: true })

### `list_jobs` (~39 tokens)

List background execute jobs (running + recently finished). Returns { count, jobs: [{ jobId, status, ageMs, runtimeMs? }] }.

### `cancel_job` (~44 tokens)

Cancel a running background execute job by jobId — terminates its sandbox worker. No-op if the job already finished.

Input parameters:

- `jobId` (string, required): Job id to cancel

### `connect_tab` (~193 tokens)

Pin a browser tab for subsequent commands and start CDP capture. Three modes: (1) provide a URL: with the optional tabs grant Crawlio reuses a match, otherwise it creates a fresh owned tab; (2) provide a tabId to adopt a specific existing tab (tabs grant required); (3) no args to discover and pin the active tab (tabs grant required). Pass background:true to avoid stealing the user's active tab/window focus.

Input parameters:

- `background` (boolean): Connect + drive the tab without activating it or focusing its window (no focus-steal). The tab opens/loads in the background; input and screenshots use CDP so they work without foreground focus.
- `tabId` (number): Specific tab ID to connect to (use list_tabs to discover IDs)
- `url` (string): URL to open — reuses a match when tab metadata is granted, otherwise creates a fresh owned tab

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/app-crawlio-crawlio-browser/crawlio-browser#diagnostics

## Score history

- 2026-08-18: 69
- 2026-08-17: 68
- 2026-08-16: 68
- 2026-08-15: 67
- 2026-08-14: 67
- 2026-08-13: 66
- 2026-08-12: 66
- 2026-08-11: 65
- 2026-08-10: 63
- 2026-08-09: 64
- 2026-08-08: 64
- 2026-08-07: 39

## Links

- npm package: https://www.npmjs.com/package/crawlio-browser
- Socket report: https://socket.dev/npm/package/crawlio-browser
- Repository: https://github.com/Crawlio-app/crawlio-browser
- Website: https://www.crawlio.app/browser-agent
- Changelog RSS feed: https://verifymcp.io/servers/app-crawlio-crawlio-browser/crawlio-browser.xml
- Changelog JSON feed: https://verifymcp.io/servers/app-crawlio-crawlio-browser/crawlio-browser.json
- HTML version of this page: https://verifymcp.io/servers/app-crawlio-crawlio-browser/crawlio-browser