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Glama

ScrapeUnblocker

Server Details

Fetch any web page's fully rendered HTML, AI-parsed structured JSON, or Google search results through ScrapeUnblocker's anti-bot scraping API (bypasses Cloudflare, DataDome, PerimeterX, Akamai). Bring your own API key.

Status
Healthy
Last Tested
Transport
Streamable HTTP
URL

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Tool DescriptionsA

Average 4/5 across 3 of 3 tools scored.

Server CoherenceA
Disambiguation5/5

Each tool has a clear, distinct purpose: fetch_html returns raw HTML, fetch_parsed returns structured JSON, and google_search performs a search. No overlap.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern using lowercase with underscores (fetch_html, fetch_parsed, google_search).

Tool Count4/5

Three tools is a reasonable count for a focused scraping API, covering core functionality without being sparse or excessive.

Completeness3/5

The set covers fetching raw HTML, parsed data, and Google search, but lacks features like custom headers, session management, or other search engines, leaving notable gaps for advanced use cases.

Available Tools

3 tools
fetch_htmlFetch page HTMLA
Read-only
Inspect

Fetch the fully rendered HTML of any web page through the ScrapeUnblocker API (https://developers.scrapeunblocker.com), bypassing anti-bot protection (Cloudflare, DataDome, PerimeterX, Akamai, Shape). Use when a normal fetch is blocked (403/429, captcha) or the page needs a real browser. Returns raw HTML.

ParametersJSON Schema
NameRequiredDescriptionDefault
urlYesThe absolute URL to fetch (http/https).
wait_valueNoThe selector/expression paired with wait_method.
wait_methodNoOptional render-wait: 'css' selector or 'js' expression.
proxy_countryNoOptional ISO country code to route through, e.g. 'US'.
sleep_secondsNoExtra seconds to wait after load.
Behavior4/5

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

Annotations readOnlyHint and openWorldHint are present, reducing the burden. The description adds specifics about bypassing Cloudflare, DataDome, etc., and returning raw HTML. However, it does not mention potential side effects like API costs, rate limits, or timeout behavior.

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?

Three sentences with no wasted words. Front-loaded with the primary action, immediately followed by usage guidance, then return type. Highly efficient.

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

Completeness4/5

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

Given the tool's moderate complexity (5 params, no nested objects, no output schema), the description covers purpose, usage context, and return type adequately. It could mention that the HTML may be large or contain scripts, but overall it is sufficient.

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%, so the schema already documents all parameters. The description adds no additional meaning beyond the schema, thus baseline 3 is appropriate.

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

Purpose5/5

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

The description clearly specifies the verb (fetch) and resource (fully rendered HTML of any web page). It distinguishes from siblings by mentioning the ScrapeUnblocker API and bypassing anti-bot protection, which differentiates it from fetch_parsed or google_search.

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

Usage Guidelines5/5

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

Explicitly states when to use: 'Use when a normal fetch is blocked (403/429, captcha) or the page needs a real browser.' This provides clear context and alternative scenarios.

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

fetch_parsedFetch AI-parsed page dataA
Read-only
Inspect

Fetch a web page through the ScrapeUnblocker API (https://developers.scrapeunblocker.com) and return AI-parsed structured JSON instead of raw HTML (product details, article content, listings).

ParametersJSON Schema
NameRequiredDescriptionDefault
urlYesThe absolute URL to fetch and parse.
proxy_countryNoOptional ISO country code, e.g. 'US'.
Behavior3/5

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

Annotations already declare readOnlyHint and openWorldHint. The description adds context about using the ScrapeUnblocker API and returning parsed JSON, but doesn't disclose additional behavioral traits such as rate limits or what happens on failure.

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

Conciseness4/5

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

The description is a single, efficient sentence that front-loads the core purpose. It is concise without being overly terse, though breaking into multiple sentences could improve readability.

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

Completeness4/5

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

For a tool with 2 parameters, no output schema, and openWorldHint, the description adequately explains the input (URL) and output (structured JSON). It could mention that output format depends on page type, but overall it is sufficient.

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 both parameters have descriptions. The description does not add any parameter-specific semantic information beyond what is already in the schema, so baseline 3 is appropriate.

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

Purpose5/5

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

The description clearly states the specific verb 'Fetch', the resource 'web page', and the output 'AI-parsed structured JSON', which distinguishes it from siblings like fetch_html (raw HTML) and google_search (search results).

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

Usage Guidelines4/5

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

The phrase 'instead of raw HTML' implies when to use this tool versus fetch_html, but no explicit exclusions or alternative guidance for google_search are provided. Usage context is clear, but not fully 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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