ToolVet

Photography Calculators

11 x402 APIs served from photo-calc.x402tookit.com

Every listing from Photography Calculators that ToolVet tracks. Each one is called on a schedule without paying and scored out of 100.

At a glance

Listings
11 x402 APIs
Passing at the latest check
8 of 11
Uptime, 30 days
60.7% on average across 11 listings
Price
$0.02 per call
Trust score
33 to 63, median 60
Paying wallets, 30 days
No usage data
Verified owner
None
Security findings
None found
Listed since
20 Oct 2026

No usage data. The x402 Bazaar reports paying wallets for the x402 APIs it lists; MCP servers and APIs submitted directly have none.

All 11 listings

Ranked by trust score.

  • 63trust
    Field Of ViewPhotography Calculators

    Horizontal, vertical and diagonal angle of view for a lens and sensor, and the width and height of scene covered at a distance.

    x402 APIOther
    $0.02per call on Polygon
    70.6% uptime, 537 msPassing, checked 9 h ago
  • 62trust
    Timelapse CalcPhotography Calculators

    Time-lapse planner: give any two of interval, shooting time and clip length to get the rest, frame count and storage.

    x402 APIDocuments & files
    $0.02per call on Polygon
    65.0% uptime, 525 msPassing, checked 6 h ago
  • 62trust
    Nd FilterPhotography Calculators

    ND filter maths: convert between ND factor, stops and optical density, and get the new shutter time with the filter on.

    x402 APIDocuments & files
    $0.02per call on Polygon
    66.7% uptime, 521 msPassing, checked 9 h ago
  • 61trust
    Print SizePhotography Calculators

    Print size from image pixels at a DPI, or the pixels and megapixels needed for a print size; with viewing-distance advice.

    x402 APIOther
    $0.02per call on Polygon
    63.2% uptime, 529 msPassing, checked 6 h ago
  • 61trust
    Exposure TradePhotography Calculators

    Hold exposure constant: change one setting (aperture, shutter or ISO) and get the other two compensations, in stops.

    x402 APIOther
    $0.02per call on Polygon
    64.3% uptime, 530 msPassing, checked 4 h ago
  • 60trust
    Shutter RulePhotography Calculators

    Minimum handheld shutter speed (reciprocal rule) and the longest star-point exposure by the 500 rule and the NPF rule.

    x402 APIOther
    $0.02per call on Polygon
    60.0% uptime, 536 msPassing, checked 2 h ago
  • 59trust
    Exposure ValuePhotography Calculators

    Exposure value (EV) from aperture, shutter speed and ISO, the light level it suits, and equivalent aperture and shutter pairs.

    x402 APIOther
    $0.02per call on Polygon
    56.3% uptime, 527 msPassing, checked 4 h ago
  • 59trust
    Depth Of FieldPhotography Calculators

    Depth of field from focal length, aperture, distance and sensor: near and far limits, total depth and hyperfocal distance.

    x402 APIOther
    $0.02per call on Polygon
    57.1% uptime, 512 msPassing, checked 13 h ago
  • 58trust
    Sunny 16Photography Calculators

    The sunny-16 rule: starting aperture and shutter speed for sun, cloud or shade at your ISO, with the exposure value it implies.

    x402 APIDeveloper tools
    $0.02per call on Polygon
    53.3% uptime, 523 msFailing, checked 1 h ago
  • 34trust
    Crop FactorPhotography Calculators

    Crop factor of a sensor, with the full-frame equivalent focal length, aperture and ISO for a lens, or a custom sensor size.

    x402 APIOther
    $0.02per call on Polygon
    57.9% uptime, 535 msFailing, checked 22 h ago
  • 33trust
    Flash Guide NumberPhotography Calculators

    Flash guide-number maths: range for an aperture and ISO, or the aperture needed for a distance, in metres and feet.

    x402 APIOther
    $0.02per call on Polygon
    52.9% uptime, 524 msFailing, checked 22 h ago

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How these numbers are made

Each listing is called on a schedule without paying. Listings with usage or a verified owner are checked about every 30 minutes, others about every 6 hours. Uptime is the share of passing checks over 30 days, averaged across this provider's listings. Trust scores follow the published method. The figures on this page can be a few minutes behind the latest checks, and listings hidden after review aren't counted.