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Video & Timecode Calc – Frame Rate Info
x402
Video & Timecode Calc – Frame Rate Info is a paid API for AI agents from video-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Returns the exact fractional value, frame duration, and speed/runtime change for a given video frame rate, with optional conversion to a target rate.
Price / call$0.02
Success—
StatusUnknown
How this service works
Exact fraction and frame duration of 23.976 to 60 fps, and the speed-up and runtime change when converting to another rate.
Output
A JSON object containing: the exact fps as a decimal, the exact fraction (e.g. 24000/1001), whether it is an NTSC fraction, frame duration in milliseconds, the nominal timecode rate, and — when a target fps is supplied — the speed factor, speed change percent, pitch change in semitones, source runtime in minutes, converted runtime in minutes, and the runtime difference in seconds.
Example use cases
PAL speed-up runtime check
“I have a 107-minute film shot at 23.976 fps. If it gets converted to 25 fps for PAL broadcast, how long will it run and how much faster will it play?”
Frame duration for sync work
“What is the exact frame duration in milliseconds and the precise fractional fps for 29.97 fps? I need to know if it's a true NTSC fraction.”
Pitch shift on 24-to-25 conversion
“When you do a straight frame-for-frame pullup from 24 fps to 25 fps, what's the pitch change in semitones and the speed factor?”
Technical details
Endpoint
GEThttps://video-calc.x402tookit.com/frame-rate-info?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, mathematically exact frame-rate data (true fractions, NTSC flags, millisecond durations) or when calculating the runtime and speed consequences of a frame-rate conversion (e.g. PAL speed-up). It is purpose-built for video/film/broadcast post-production math and is more precise than general-purpose calculators.
Side effects
- Unsupported fps value returns an error or null fields — only 23.976, 24, 25, 29.97, 30, 48, 50, 59.94, and 60 are valid
- Missing required 'fps' query parameter causes a request failure
- toFps without fps provided is invalid
- runtimeMinutes ignored if toFps is not also provided
- Network or payment (x402) failures may return a 402 or 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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