app.crawlio/crawlio-browser
NPM · CRAWLIO-BROWSER · SCANNED OCT 4
Bridge a live Chrome browser to your agent: 150 tools for capture, extraction, and observation.
Available components
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. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- Known CVEs were checked across the 95 of 97 dependencies we could resolve, so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Dependency health was assessed across the 95 of 97 dependencies we could resolve, so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (Apache-2.0).Pass
- Actively maintained (last published 55 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability59
- AI-judged instruction clarity (excellent).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage81
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 44% of tool parameters carry a description.Partial
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "execute" implies "execute" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the app.crawlio/crawlio-browser MCP server?
app.crawlio/crawlio-browser runs locally as an npm package, launched with npx -y crawlio-browser. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · crawlio-browser
claude mcp add app-crawlio-crawlio-browser -- npx -y crawlio-browser
{
"mcpServers": {
"app-crawlio-crawlio-browser": {
"command": "npx",
"args": [
"-y",
"crawlio-browser"
]
}
}
} {
"servers": {
"app-crawlio-crawlio-browser": {
"command": "npx",
"args": [
"-y",
"crawlio-browser"
]
}
}
} codex mcp add app-crawlio-crawlio-browser -- npx -y crawlio-browser
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"app-crawlio-crawlio-browser": {
"type": "local",
"command": [
"npx",
"-y",
"crawlio-browser"
],
"enabled": true
}
}
} openclaw mcp add app-crawlio-crawlio-browser --command npx --arg -y --arg crawlio-browser
mcp_servers:
app-crawlio-crawlio-browser:
command: "npx"
args: ["-y", "crawlio-browser"] {
"McpServers": {
"app-crawlio-crawlio-browser": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"crawlio-browser"
]
}
}
} assistant mcp add app-crawlio-crawlio-browser -t stdio -c npx -a -y crawlio-browser
{
"mcpServers": {
"app-crawlio-crawlio-browser": {
"command": "npx",
"args": [
"-y",
"crawlio-browser"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Oct 26 +5
- Source repository: unverified → pass ▲ security
- 2 Oct 26 −4
- Provenance: pass → unverified ▼ security
- 30 Sept 26 −3
- Stability: pass → 0.80 functional
- 29 Sept 26 +1
- Stability: 0.97 → pass security
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Oct 2026 · Analysed npm/crawlio-browser@1.11.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 95 packages
| Packages resolved | 95 |
|---|---|
| Stale | 31 |
| Tree resolution | Partial |
The dependency tree was only partially resolved, so these counts may be incomplete.
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
cancel_job ~44
Cancel a running background execute job by jobId — terminates its sandbox worker. No-op if the job already finished.
| Name | Type | Req | Description |
|---|---|---|---|
| jobId | string | yes | Job id to cancel |
No output schema declared.
No examples provided.
connect_tab ~193
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 |
No output schema declared.
No examples provided.
execute ~2,328
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?)…
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | 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). |
No output schema declared.
No examples provided.
get_job_result ~117
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.
| Name | Type | Req | Description |
|---|---|---|---|
| jobId | string | yes | Job id from execute({ background: true }) |
No output schema declared.
No examples provided.
list_jobs ~39
List background execute jobs (running + recently finished). Returns { count, jobs: [{ jobId, status, ageMs, runtimeMs? }] }.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
observe ~242
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.
| Name | Type | Req | Description |
|---|---|---|---|
| action | string | yes | – |
| 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 | – | – |
No output schema declared.
No examples provided.
search ~96
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.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | number | – | Max results (default: 10) |
| query | string | yes | Search keyword (e.g. 'screenshot', 'cookie', 'network', 'navigate') |
No output schema declared.
No examples provided.
What is the app.crawlio/crawlio-browser MCP server?
app.crawlio/crawlio-browser is an MCP server listed in the public MCP registry as app.crawlio/crawlio-browser. Bridge a live Chrome browser to your agent: 150 tools for capture, extraction, and observation. This page covers its npm package (crawlio-browser).
Is the app.crawlio/crawlio-browser MCP server safe to use?
app.crawlio/crawlio-browser scores 78 out of 100 on VerifyMCP. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the app.crawlio/crawlio-browser MCP server expose?
app.crawlio/crawlio-browser exposes 7 tools: search, execute, observe, get_job_result, list_jobs, and 2 more. Their descriptions and schemas cost roughly 3,059 tokens of context every time the server is loaded.
Is the app.crawlio/crawlio-browser MCP server still maintained?
app.crawlio/crawlio-browser is still listed as active in the MCP registry. We last reached this channel on 4 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the app.crawlio/crawlio-browser MCP server under?
app.crawlio/crawlio-browser declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.