Official passport and visa photo rules for 27 documents, with sources and check dates.
Scored across 3 tools
The three tools map to distinct CRUD-style operations: list all specs, get one spec, and validate measurements against a spec. The only slight friction is that 'check_photo_requirements' could be misread as fetching requirements (which get_photo_spec does), but the description makes clear it is a measurements validator, not a lookup.
All three names follow a consistent verb_noun snake_case pattern (list_/get_/check_). The noun is not perfectly stable (photo_specs vs photo_spec vs photo_requirements), which is a minor deviation but still predictable and readable.
Three tools is exactly right for a narrow directory-plus-validator domain: enumerate, retrieve, and validate. No tool feels redundant or bolted on.
List, get, and check cover the full read/validation lifecycle for photo specs, but check_photo_requirements explicitly does not inspect the image and defers the full check to an external page, leaving a dead end for agents that need a complete verdict. A compare-multiple-documents operation is also absent, though most workflows can work around it.
Check a photo's measurements against a spec: aspect ratio, pixel limits, head height share and file size/format. Does not look at the image itself; for a full check use the free checker at page_url.
Inputs: spec_id (required), width_px (required), height_px (required), file_kb, +2 more.
Official photo rules for one document: print size, pixels at 300 and 600 dpi, head height, background, glasses, expression, digital file limits, what editing the government forbids, and the official source URL with the date we checked it.
Inputs: country (required), document.
List every passport, visa and ID photo spec we publish (including the US online passport renewal and DV lottery): id, country, document, size in mm and whether we make the photo (US$8.99 file; the check is free) or only check it.
Inputs: query.
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Passport, visa and ID photo sizes, head size and background rules from official sources.
Passport and visa photo rules for 110 documents in 60 countries, and upload limits as exact numbers.
Visa & entry requirements for 199 passports, cited to official sources and re-verified daily.
Passport visa, entry & transit requirements for any country pair, with official government sources.
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