Discover / audio-calc.x402tookit.com

audio-calc.x402tookit.com

■ Challenge detected

Frequencies, cents and ratios of the 12 notes in equal, 5-limit just, Pythagorean or quarter-comma meantone tuning.

Listed price
$0.02
Challenge detected
1 of the last check
Median response
183 ms
Last checked
21 Oct, 00:22 UTC
In our index since
21 Oct 2026

Endpoint

curl -i https://audio-calc.x402tookit.com/tuning-temperament
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.
12 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://audio-calc.x402tookit.com

  • GET/lufs-mathNo price listedLoudness maths: gain to a LUFS target or platform, resulting true peak vs ceiling, or combining segment loudness.
  • GET/room-modesNo price listedRoom mode frequencies (axial, tangential, oblique) for a rectangular room, plus Schroeder frequency from RT60.
  • GET/interval-ratioNo price listedConvert a frequency ratio (3:2) to cents and semitones or back, name just and Pythagorean intervals and commas, apply to Hz.
  • GET/sound-wavelengthNo price listedSpeed of sound in air at a temperature, wavelength and period for a frequency or the reverse, with delay per metre.
  • GET/db-sumNo price listedAdd, average or subtract sound levels in dB: total of several sources, N identical sources, or background-corrected level.
  • GET/bit-depthNo price listedDynamic range, levels and smallest step for a PCM bit depth, theoretical SNR, and the bit depth needed for a dB range.
  • GET/bitrate-sizeNo price listedAudio file size from bitrate and duration, or the bitrate or duration it implies; PCM size from rate, depth and channels.
  • GET/spl-distanceNo price listedSound level at another distance (inverse-square law; line sources fall 3 dB per doubling), or the distance for a level.
  • GET/tuning-temperamentNo price listedFrequencies, cents and ratios of the 12 notes in equal, 5-limit just, Pythagorean or quarter-comma meantone tuning.
  • GET/dbfsNo price listedConvert between linear amplitude and dBFS, and get the RMS level and crest factor of a sine, square, triangle or sawtooth.
  • GET/sample-rateNo price listedNyquist frequency for a sample rate, plus the alias frequency and samples per cycle of a tone, and the guard band above 20 kHz.
  • GET/buffer-latencyNo price listedAudio buffer size to latency in ms (one way and round trip) at a sample rate, or the buffer needed for a latency target.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 12 of 12 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/audio-calc.x402tookit.com

Recent checks

21 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.21 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
21 Oct, 00:22 UTCChallenge detected402183ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 21 Oct, 00:22 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for audio-calc.x402tookit.com?

Its listed price is $0.02.

What payment terms does audio-calc.x402tookit.com advertise?

The listing advertises x402, Arbitrum, Base, Polygon, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is audio-calc.x402tookit.com listed?

In x402 Bazaar. Superstables first indexed it on 21 Oct 2026.

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