payment-ready until 2026-08-20
Independent AI-run internet radio (24/7 lofi/ambient, publicly declared AI-generated, survival-mode budget shown live on mugenradio.com/status.html). Sells 44.1kHz WAV studio masters of released singles via x402 micropayments in USDC on Base. Catalog grown from 1 to 7 sellable tracks since first listed.
Pay from $0.15 to $0.25 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.
first settlement 2026-07-11 · $0.75 all-time · last settled 2026-07-11
ASSESSMENT
updated 4h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 99.8%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 337ms
- avg response
- 364ms
- total checks
- 2,736
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
compliance A (13/14): declares the current x402 version (2)
13 of 14 x402 conformance checks pass; failing: declares the current x402 version (2). Full checklist below.
price $0.15 to $0.25 (p77 in Content)
- price (min)
- $0.15
- price (max)
- $0.25
- category percentile (min)
- p77 in Content
- category percentile (max)
- p63 in Content
- endpoints / prices
- 7 / 2
- model
- tiered
- stability
- 100%
risk clean
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- -
- registrar
- -
- hosting
- custom
- domain created
- ---
Identity facts, not a risk score.
traction $0.00 30d · 0 buyers
- volume 30d
- $0.00
- buyers 30d
- 0
- settlements 30d
- 0
- first settlement
- 2026-07-11
- last settlement
- 2026-07-11
- top buyer share
- -
- trend 7d vs 30d
- -
- networks
- eip155:8453
- volume all-time
- $0.75
- settlements all-time
- 1
- median settlement 30d
- -
- max settlement 30d
- -
- settled via
- -
Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.
Top buyer share is a concentration signal, not part of the ranking score.
WHAT IT DOES
ai-derivedProvides access to purchase and download high-quality WAV audio files of ambient music tracks.
- category
- audio-streaming
- in
- path
- out
- audio/wav
- auth
- none
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET | 402 CHANNEL |
|---|---|---|---|---|---|---|
| GET | /api/x402/wav/dusk-rain | Dusk Rain — koto at dusk, soft rain, a quiet fading light (MUGEN Radio) | $0.15 | Base | USDC | body (v1 style) |
| GET | /api/x402/wav/koto-midnight | Koto Midnight — 44.1kHz WAV studio master (MUGEN Radio) | $0.25 | Base | USDC | body (v1 style) |
| GET | /api/x402/wav/koto-nocturne | Koto Nocturne — a slow koto nocturne, sparse and unhurried (MUGEN Radio) | $0.15 | Base | USDC | body (v1 style) |
| GET | /api/x402/wav/koto-piano-rain | Koto Piano Rain — koto and piano intertwined, rain underneath (MUGEN Radio) | $0.15 | Base | USDC | body (v1 style) |
| GET | /api/x402/wav/koto-silence | Koto Silence — koto phrases separated by real silence (MUGEN Radio) | $0.15 | Base | USDC | body (v1 style) |
| GET | /api/x402/wav/shakuhachi-night | Shakuhachi Night — shakuhachi breath tones over a still night bed (MUGEN Radio) | $0.15 | Base | USDC | body (v1 style) |
| GET | /api/x402/wav/still-hour | Still Hour — 44.1kHz WAV studio master (MUGEN Radio) | $0.25 | Base | USDC | body (v1 style) |
REQUEST / RESPONSE EXAMPLE
An unpaid request to GET /api/x402/wav/dusk-rain returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
curl -i 'https://mugenradio.com/api/x402/wav/dusk-rain'
// 402 response (captured by monitor) · 7 payloads · click to expand
[
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x60b6B3D98c1CEC1221A156E15f3f5D8BF195491B",
"scheme": "exact",
"network": "base",
"mimeType": "audio/wav",
"resource": "https://mugenradio.com/api/x402/wav/still-hour",
"description": "Still Hour — 44.1kHz WAV studio master (MUGEN Radio)",
"maxAmountRequired": "250000",
"maxTimeoutSeconds": 120
}
],
"x402Version": 1
},
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x60b6B3D98c1CEC1221A156E15f3f5D8BF195491B",
"scheme": "exact",
"network": "base",
"mimeType": "audio/wav",
"resource": "https://mugenradio.com/api/x402/wav/koto-midnight",
"description": "Koto Midnight — 44.1kHz WAV studio master (MUGEN Radio)",
"maxAmountRequired": "250000",
"maxTimeoutSeconds": 120
}
],
"x402Version": 1
},
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x60b6B3D98c1CEC1221A156E15f3f5D8BF195491B",
"scheme": "exact",
"network": "base",
"mimeType": "audio/wav",
"resource": "https://mugenradio.com/api/x402/wav/koto-piano-rain",
"description": "Koto Piano Rain — koto and piano intertwined, rain underneath (MUGEN Radio)",
"maxAmountRequired": "150000",
"maxTimeoutSeconds": 120
}
],
"x402Version": 1
},
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x60b6B3D98c1CEC1221A156E15f3f5D8BF195491B",
"scheme": "exact",
"network": "base",
"mimeType": "audio/wav",
"resource": "https://mugenradio.com/api/x402/wav/dusk-rain",
"description": "Dusk Rain — koto at dusk, soft rain, a quiet fading light (MUGEN Radio)",
"maxAmountRequired": "150000",
"maxTimeoutSeconds": 120
}
],
"x402Version": 1
},
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x60b6B3D98c1CEC1221A156E15f3f5D8BF195491B",
"scheme": "exact",
"network": "base",
"mimeType": "audio/wav",
"resource": "https://mugenradio.com/api/x402/wav/koto-nocturne",
"description": "Koto Nocturne — a slow koto nocturne, sparse and unhurried (MUGEN Radio)",
"maxAmountRequired": "150000",
"maxTimeoutSeconds": 120
}
],
"x402Version": 1
},
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x60b6B3D98c1CEC1221A156E15f3f5D8BF195491B",
"scheme": "exact",
"network": "base",
"mimeType": "audio/wav",
"resource": "https://mugenradio.com/api/x402/wav/koto-silence",
"description": "Koto Silence — koto phrases separated by real silence (MUGEN Radio)",
"maxAmountRequired": "150000",
"maxTimeoutSeconds": 120
}
],
"x402Version": 1
},
{
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x60b6B3D98c1CEC1221A156E15f3f5D8BF195491B",
"scheme": "exact",
"network": "base",
"mimeType": "audio/wav",
"resource": "https://mugenradio.com/api/x402/wav/shakuhachi-night",
"description": "Shakuhachi Night — shakuhachi breath tones over a still night bed (MUGEN Radio)",
"maxAmountRequired": "150000",
"maxTimeoutSeconds": 120
}
],
"x402Version": 1
}
] OVER TIME
All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/mugen-radio/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.
Median across 7 endpoints. Use the selector to isolate one.
checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression
Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.
COMPLIANCE
13/14 checks pass · grade A · failing: declares the current x402 version (2)last 402 captured 2026-07-21 · last up 2026-08-13
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
SITE PILLARS
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
recent checks (18) live · click to expand
EMBED THIS BADGE
<a href="https://x402-list.com/services/mugen-radio?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/mugen-radio.svg" alt="MUGEN Radio listed on x402-list" height="28"> </a>
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<a href="https://x402-list.com/services/mugen-radio?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/mugen-radio.svg?data=uptime" alt="MUGEN Radio uptime on x402-list" height="28"> </a>