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spider-rs

spider-cloud-mcp

by spider-rs

spider_unblocker

Bypass anti-bot systems to access blocked or protected web content using enhanced fingerprinting and proxy rotation.

Instructions

Access blocked or protected content with advanced anti-bot bypass. Uses enhanced fingerprinting and proxy rotation. Adds 10-40 extra credits per successful unblock.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tldNoAllow TLDs
urlYesThe URL to crawl. Can be comma-separated for multiple URLs.
cronNoSchedule crawl
cacheNoHTTP caching. Object: {maxAge, allowStale, period}
proxyNoProxy pool type
binaryNoReturn image as binary instead of base64
budgetNoCrawl budget by path (e.g. {'*':100})
localeNoLocale for content (e.g. 'en-US')
cookiesNoHTTP cookies for SSR authentication
requestNoRequest type. Default: smart
sessionNoPersist HTTP headers and cookies. Default: true
sitemapNoInclude links from sitemaps
timeoutNoOverall request timeout
metadataNoCollect page metadata (title, description, keywords)
sitemapsNoSpecific sitemap URLs to use
timezoneNoTimezone for content
viewportNoDevice viewport settings
wait_forNoChrome-only readiness gate (request: 'chrome' or 'smart'). Object with any of: selector ({selector, timeout}), idle_network ({timeout}), idle_network0, almost_idle_network0, dom ({selector, timeout}), delay ({timeout}), page_navigations (bool). Each timeout is a Rust Duration: { secs, nanos }.
webhooksNoWebhook config for events (on_find, on_credits_depleted, etc.)
blacklistNoPaths to exclude (supports regex)
block_adsNoBlock advertisements. Default: true
full_pageNoScreenshot full page. Default: true
whitelistNoPaths to include (supports regex)
automationNoWeb automation actions (Click, Fill, Wait, Scroll, etc.)
cdp_paramsNoChrome DevTools Protocol settings
clean_htmlNoClean HTML of unwanted attributes
filter_svgNoFilter SVG elements from markup
screenshotNoEnable screenshot capture
subdomainsNoAllow subdomains
user_agentNoCustom HTTP user agent
fingerprintNoAdvanced fingerprint detection for Chrome. Default: true
readabilityNoUse readability algorithm for content preprocessing
storagelessNoPrevent data storage. Default: true
block_imagesNoBlock image loading
chunking_algNoSegment content: bysentence, bylines, bycharacterlength, bywords
country_codeNoISO country code for proxy (e.g. 'gb')
remote_proxyNoExternal proxy connection URL
event_trackerNoTrack requests, responses, automation
filter_imagesNoFilter image elements from markup
preserve_hostNoPreserve HOST header
proxy_enabledNoEnable premium proxies. Multiplies cost by 1.5x
return_formatNoOutput format. Default: raw
root_selectorNoRoot CSS query selector for content extraction
full_resourcesNoDownload all website resources including assets
respect_robotsNoRespect robots.txt. Default: true
return_cookiesNoReturn HTTP response cookies
return_headersNoReturn HTTP response headers
block_analyticsNoBlock analytics. Default: true
omit_backgroundNoOmit background
redirect_policyNoRedirect policy. Default: Loose
request_timeoutNoHTTP request timeout in ms
exclude_selectorNoCSS selector for content to ignore
external_domainsNoExternal domains to include. Use ['*'] for all
filter_main_onlyNoFilter to main content only. Default: enabled
return_json_dataNoReturn JSON data from SSR scripts
block_stylesheetsNoBlock stylesheets. Default: true
concurrency_limitNoConcurrency limit for slower websites
disable_interceptNoDisable request interception
filter_output_svgNoFilter SVG tags from output
return_page_linksNoReturn links found on each page
run_in_backgroundNoRun in background. Requires storageless=false or webhooks
css_extraction_mapNoCSS/XPath selectors for structured extraction. Shape: { '<url-path>': [{ name, selectors: [...] }] }. '/' matches all paths. Results returned under css_extracted.
request_max_retriesNoMaximum request retries
filter_output_imagesNoFilter images from output
request_redirect_limitNoMaximum redirects to follow
filter_output_main_onlyNoFilter nav, aside, footer from output
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the burden of behavioral disclosure. It does add useful context by mentioning 'enhanced fingerprinting and proxy rotation' and the extra cost of '10-40 extra credits per successful unblock.' However, it doesn't disclose failure behaviors, whether it bypasses robots.txt, or other side effects, so transparency is partial.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is three sentences long, front-loads the primary purpose, and every sentence adds value: purpose, method, and cost. No fluff or redundancy. It is appropriately concise.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite the tool's high complexity (66 parameters, no output schema, no annotations), the description is minimal. It lacks guidance on return format, failure handling, or when to prefer this over spider_crawl. For an AI agent to use this correctly in diverse scenarios, the description is insufficient.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, and all 66 parameters have individual descriptions in the schema, so the description doesn't need to compensate. The description adds no parameter-specific guidance beyond naming 'proxy' and 'fingerprint' mechanisms, which already appear as schema fields. Baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's core purpose: 'Access blocked or protected content with advanced anti-bot bypass.' This uses a specific verb and resource, and differentiates from siblings like spider_crawl by focusing on anti-bot bypass. However, it doesn't explicitly name alternatives, so it's not a perfect 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for blocked or protected content, which provides context, but it doesn't explicitly state when to use this tool versus alternatives like spider_crawl, nor does it mention exclusions. This is implied guidance, not explicit.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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