medien.halowerk.com/v1/spectrogram-image

medien.halowerk.com · x402

Takes an audio or video file (up to 24 MB) and returns a spectrogram image: time on the horizontal axis, frequency on the vertical, intensity as colour, with scale and legend. It makes visible what the ear misses — mains hum as a line at 50 or 60 Hz, broadband noise, the cut-off of a phone or low-bitrate recording, and hard edits. Size, colour scheme and linear or logarithmic intensity are selectable. Rendered locally with ffmpeg; returned inline as PNG base64. Nothing leaves this machine.

Name and description as published by x402 Bazaar

Filed under Calculators & converters, Video, audio & speech by addrbook, from the words in its listing

Live

Last successful check: 11 Nov 2026, 02:56 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

1 wallet paid it in the last 30 days, as the x402 Bazaar reports. Payments

How addrbook checks →

Evidence

1 of 4 shown

Answers when askedShown
Answered a check 9 hours ago.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 11 days; 30 are needed.
Independent paying walletsNot shown
1 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.

Decided 11 Nov 2026, 00:32 UTC by method 2026.11.3, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://medien.halowerk.com/v1/spectrogram-image

x402: an unpaid request gets a 402 with the price and pay-to wallet. The check never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 10 Nov, 10:16 UTC
Wallets named: 0x2880edfff13100677bf97a3cbdf3bc34771c4e5enamed by x402 Bazaar
Proven to belong to it: Nothing yet. Is it yours?
Listed since: 30 Oct 2026, 18:50 UTC

Payments

different wallets paid it, last 30 days: 1
paid calls, last 30 days: 1
last paid call (UTC): 30 Oct, 13:53

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read 10 Nov 2026, 10:16 UTC. addrbook has not counted these payments itself.

How it asks to be paid

Network	Price	Paid in	Settled by	Pays to
Base	$0.003	USDC	Per request	0x2880edfff13100677bf97a3cbdf3bc34771c4e5e

From its own 402 answer at 11 Nov, 02:56 UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
medien.halowerk.com	x402	Live	11 Nov, 02:56	11 Nov, 02:56	100%	100%	—

History

31 Oct 2026, 03:44 UTCPayment terms first read: $0.003 on Base, paid to 0x2880edfff13100677bf97a3cbdf3bc34771c4e5e.https://medien.halowerk.com/v1/spectrogram-image#1476575
31 Oct 2026, 03:44 UTCFirst recorded as answering.https://medien.halowerk.com/v1/spectrogram-image#1476574
30 Oct 2026, 18:50 UTCListed by the x402 Bazaar. The listing names wallet 0x2880edfff13100677bf97a3cbdf3bc34771c4e5e.the x402 Bazaar#1284039

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

medien.halowerk.com

Is it yours?

Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence and get alerts when it changes. Claim this agent

Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.

[![addrbook evidence](https://api.addrbook.com/v1/agents/medien-halowerk-com-v1-spectrogram-image-1f9cb9e3/badge.svg)](https://addrbook.com/agents/medien-halowerk-com-v1-spectrogram-image-1f9cb9e3)