screenshot_page
Screenshot a page (real browser) as a base64 PNG/JPEG. (browser; $0.02/call in USDC via x402, 10 free/day).
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | Target URL or hostname. | |
| full_page | No |
fetcher
Schema Changelog
Changes observed during successful MCP inspections. Dates show when Glama detected each change.
- First observed
TDQS
C2.9/5.0
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description must bear full burden. It discloses 'real browser' and pricing, but lacks details like page load behavior, JavaScript support, error handling, or return format specifics (e.g., image dimensions).
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, front-loaded sentence with essential information. Pricing info, while useful, could be relegated to annotations, but overall it is concise and well-structured.
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?
Given no output schema and low schema coverage, the description falls short. It does not explain how to specify image format (PNG vs JPEG), quality, viewport settings, or expected return structure, making it incomplete for a 2-param tool.
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 50%: 'url' has a basic description; 'full_page' has none. The description adds no parameter-level meaning beyond 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.
Purpose4/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the verb (screenshot), resource (page), and output format (base64 PNG/JPEG). It also notes it uses a real browser, but lacks explicit differentiation from sibling tools like 'render_page'.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool versus alternatives such as 'render_page' or 'extract_content'. Pricing is mentioned but not usage context.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Try in Browser
Glama MCP Gateway
Add one secure layer between your agents and this server.
TDQS
B3.4/5.0
Disambiguation4/5
Most tools have clearly distinct purposes, but there are overlapping pairs: unfurl_url/get_oembed/find_favicon all provide URL metadata, and render_page/screenshot_page both render a page (render_page can also screenshot). Descriptions help disambiguate, so only minor confusion is likely.
Naming Consistency3/5
Tool names mix verb_noun patterns (check_domain, extract_content) with noun_verb patterns (dns_lookup, ssl_lookup, whois_lookup). Additionally, guard_inspect and guard_tx deviate from the typical verb-first style. The naming is readable but not consistent.
Tool Count3/5
With 19 tools, the server is at the heavier end of the scale. While it covers a broad web-intel toolkit, several tools feel out of place for a 'fetcher' (e.g., generate_qr, guard_tx, guard_inspect), making the set feel bloated and unfocused.
Completeness4/5
The core web-fetching and analysis surface is well covered: DNS, WHOIS, SSL, headers, content extraction, rendering, screenshots, feeds, embeds, redirects, and robots. Missing is a simple raw HTML fetcher, but extract_content and render_page likely cover most needs. The addition of security and utility tools doesn't fill obvious gaps.